undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions

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/*
* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.testng.Assert;
import org.testng.annotations.Test;
import impl.SimpleResolverProviderImpl;
/*
* @test
* @summary Test that InetAddress caching security properties work as expected
* when a custom resolver is installed.
* @library lib providers/simple
* @build test.library/testlib.ResolutionRegistry
* simple.provider/impl.SimpleResolverProviderImpl AddressesCachingTest
* @run testng/othervm -Djava.security.properties=${test.src}/props/NeverCache.props
* -Dtest.cachingDisabled=true AddressesCachingTest
* @run testng/othervm -Djava.security.properties=${test.src}/props/ForeverCache.props
* -Dtest.cachingDisabled=false AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/NeverCacheIgnoreMinusStale.props
* -Dtest.cachingDisabled=true AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/NeverCacheIgnorePositiveStale.props
* -Dtest.cachingDisabled=true AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/NeverCacheIgnoreZeroStale.props
* -Dtest.cachingDisabled=true AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/ForeverCacheIgnoreMinusStale.props
* -Dtest.cachingDisabled=false AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/ForeverCacheIgnorePositiveStale.props
* -Dtest.cachingDisabled=false AddressesCachingTest
* @run testng/othervm
* -Djava.security.properties=${test.src}/props/ForeverCacheIgnoreZeroStale.props
* -Dtest.cachingDisabled=false AddressesCachingTest
*/
public class AddressesCachingTest {
@Test
public void testPositiveCaching() {
boolean observedTwoLookups = performLookups(false);
if (CACHING_DISABLED) {
Assert.assertTrue(observedTwoLookups,
"Two positive lookups are expected with caching disabled");
} else {
Assert.assertFalse(observedTwoLookups,
"Only one positive lookup is expected with caching enabled");
}
}
@Test
public void testNegativeCaching() {
boolean observedTwoLookups = performLookups(true);
if (CACHING_DISABLED) {
Assert.assertTrue(observedTwoLookups,
"Two negative lookups are expected with caching disabled");
} else {
Assert.assertFalse(observedTwoLookups,
"Only one negative lookup is expected with caching enabled");
}
}
/*
* Performs two subsequent positive or negative lookups.
* Returns true if the timestamp of this lookups differs,
* false otherwise.
*/
private static boolean performLookups(boolean performNegativeLookup) {
doLookup(performNegativeLookup);
long firstTimestamp = SimpleResolverProviderImpl.getLastLookupTimestamp();
doLookup(performNegativeLookup);
long secondTimestamp = SimpleResolverProviderImpl.getLastLookupTimestamp();
return firstTimestamp != secondTimestamp;
}
// Performs negative or positive lookup.
// It is a test error if UnknownHostException is thrown during positive lookup.
// It is a test error if UnknownHostException is NOT thrown during negative lookup.
private static void doLookup(boolean performNegativeLookup) {
String hostName = performNegativeLookup ? "notKnowHost.org" : "javaTest.org";
try {
InetAddress.getByName(hostName);
if (performNegativeLookup) {
Assert.fail("Host name is expected to get unresolved");
}
} catch (UnknownHostException uhe) {
if (!performNegativeLookup) {
Assert.fail("Host name is expected to get resolved");
}
}
}
// Helper system property that signals to the test if both negative and positive
// caches are disabled.
private static final boolean CACHING_DISABLED = Boolean.getBoolean("test.cachingDisabled");
}

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/*
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import impl.SimpleResolverProviderImpl;
import org.testng.Assert;
import org.testng.annotations.Test;
/*
* @test
* @summary Test that stale InetAddress caching security properties work as
* expected when a custom resolver is installed.
* @library lib providers/simple
* @build test.library/testlib.ResolutionRegistry
* simple.provider/impl.SimpleResolverProviderImpl AddressesStaleCachingTest
* @run testng/othervm -Djava.security.properties=${test.src}/props/CacheStale.props AddressesStaleCachingTest
*/
public class AddressesStaleCachingTest {
private static class Lookup {
private final byte[] address;
private final long timestamp;
private Lookup(byte[] address, long timestamp) {
this.address = address;
this.timestamp = timestamp;
}
}
/**
* Validates successful and unsuccessful lookups when the stale cache is
* enabled.
*/
@Test
public void testRefresh() throws Exception{
// The first request is to save the data into the cache
Lookup first = doLookup(false, 0);
Thread.sleep(10000); // intentionally big delay > x2 stale property
// The refreshTime is expired, we will do the successful lookup.
Lookup second = doLookup(false, 0);
Assert.assertNotEquals(first.timestamp, second.timestamp,
"Two lookups are expected");
Thread.sleep(10000); // intentionally big delay > x2 stale property
// The refreshTime is expired again, we will do the failed lookup.
Lookup third = doLookup(true, 0);
Assert.assertNotEquals(second.timestamp, third.timestamp,
"Two lookups are expected");
// The stale cache is enabled, so we should get valid/same data for
// all requests(even for the failed request).
Assert.assertEquals(first.address, second.address,
"Same address is expected");
Assert.assertEquals(second.address, third.address,
"Same address is expected");
}
/**
* Validates that only one thread is blocked during "refresh", all others
* will continue to use the "stale" data.
*/
@Test
public void testOnlyOneThreadIsBlockedDuringRefresh() throws Exception {
long timeout = System.nanoTime() + TimeUnit.SECONDS.toNanos(12);
doLookup(false, timeout);
Thread.sleep(9000);
CountDownLatch blockServer = new CountDownLatch(1);
SimpleResolverProviderImpl.setBlocker(blockServer);
Thread ts[] = new Thread[10];
CountDownLatch wait9 = new CountDownLatch(ts.length - 1);
CountDownLatch wait10 = new CountDownLatch(ts.length);
CountDownLatch start = new CountDownLatch(ts.length);
for (int i = 0; i < ts.length; i++) {
ts[i] = new Thread(() -> {
start.countDown();
try {
start.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
doLookup(true, timeout);
wait9.countDown();
wait10.countDown();
});
}
for (Thread t : ts) {
t.start();
}
if (!wait9.await(10, TimeUnit.SECONDS)) {
blockServer.countDown();
throw new RuntimeException("Some threads hang");
}
blockServer.countDown();
if (!wait10.await(10, TimeUnit.SECONDS)) {
throw new RuntimeException("The last thread hangs");
}
}
private static Lookup doLookup(boolean error, long timeout) {
SimpleResolverProviderImpl.setUnreachableServer(error);
try {
byte[] firstAddress = InetAddress.getByName("javaTest.org").getAddress();
long firstTimestamp = SimpleResolverProviderImpl.getLastLookupTimestamp();
byte[] secondAddress = InetAddress.getByName("javaTest.org").getAddress();
long secondTimestamp = SimpleResolverProviderImpl.getLastLookupTimestamp();
Assert.assertEquals(firstAddress, secondAddress,
"Same address is expected");
if (timeout == 0 || timeout - System.nanoTime() > 0) {
Assert.assertEquals(firstTimestamp, secondTimestamp,
"Only one positive lookup is expected with caching enabled");
}
return new Lookup(firstAddress, firstTimestamp);
} catch (UnknownHostException e) {
throw new RuntimeException(e);
}
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import org.testng.Assert;
import org.testng.annotations.Test;
import static impl.WithBootstrapResolverUsageProvider.numberOfGetCalls;
/**
* @test
* @summary Test that InetAddress class properly avoids stack-overflow by
* correctly tracking the bootstrap resolver instance when
* InetAddressResolverProvider.get method uses InetAddress lookup API.
* @library providers/bootstrapUsage
* @build bootstrap.usage.provider/impl.WithBootstrapResolverUsageProvider
* @run testng/othervm BootstrapResolverUsageTest
*/
public class BootstrapResolverUsageTest {
@Test
public void testSuccessfulProviderInstantiationTest() throws Exception {
System.err.println(InetAddress.getAllByName(InetAddress.getLocalHost().getHostName()));
Assert.assertEquals(numberOfGetCalls, 1,
"InetAddressResolverProvider.get was called more than once");
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import java.lang.reflect.Field;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import static org.testng.Assert.*;
/*
* @test
* @summary white-box test to check that the built-in resolver
* is used by default.
* @modules java.base/java.net:open
* @run testng/othervm BuiltInResolverTest
*/
public class BuiltInResolverTest {
private Field builtInResolverField, resolverField;
@BeforeTest
public void beforeTest() throws NoSuchFieldException {
Class<InetAddress> inetAddressClass = InetAddress.class;
// Needs to happen for InetAddress.resolver to be initialized
try {
InetAddress.getByName("test");
} catch (UnknownHostException e) {
// Do nothing, only want to assign resolver
}
builtInResolverField = inetAddressClass.getDeclaredField("BUILTIN_RESOLVER");
builtInResolverField.setAccessible(true);
resolverField = inetAddressClass.getDeclaredField("resolver");
resolverField.setAccessible(true);
}
@Test
public void testDefaultNSContext() throws IllegalAccessException {
// Test that the resolver used by default is the BUILTIN_RESOLVER
Object defaultResolverObject = builtInResolverField.get(InetAddressResolver.class);
Object usedResolverObject = resolverField.get(InetAddressResolver.class);
assertTrue(defaultResolverObject == usedResolverObject);
String defaultClassName = defaultResolverObject.getClass().getCanonicalName();
String currentClassName = usedResolverObject.getClass().getCanonicalName();
assertNotNull(defaultClassName, "defaultClassName not set");
assertNotNull(currentClassName, "currentClassName name not set");
assertEquals(currentClassName, defaultClassName,
"BUILTIN_RESOLVER resolver was not used.");
System.err.println("Resolver used by default is the built-in resolver");
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.testng.Assert;
import org.testng.annotations.Test;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;
/*
* @test
* @summary checks that InetAddress forward lookup API throw UnknownHostException
* when resolver returns empty address stream.
* @library providers/empty
* @build empty.results.provider/impl.EmptyResultsProviderImpl
* @run testng/othervm EmptyResultsStreamTest
*/
public class EmptyResultsStreamTest {
@Test(expectedExceptions = UnknownHostException.class)
public void getAllByNameTest() throws UnknownHostException {
System.err.println("getAllByName unexpectedly completed: " +
Arrays.deepToString(InetAddress.getAllByName("test1.org")));
}
@Test(expectedExceptions = UnknownHostException.class)
public void getByNameTest() throws UnknownHostException {
System.err.println("getByName unexpectedly completed: " +
InetAddress.getByName("test2.org"));
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.testng.Assert;
import org.testng.annotations.Test;
import java.net.InetAddress;
/**
* @test
* @summary Test that provider which uses InetAddress APIs during its initialization
* wouldn't cause stack overflow and will be successfully installed.
* @library providers/recursive
* @build recursive.init.provider/impl.InetAddressUsageInGetProviderImpl
* @run testng/othervm InetAddressUsageInGetProviderTest
*/
public class InetAddressUsageInGetProviderTest {
@Test
public void testSuccessfulProviderInstantiationTest() throws Exception {
System.err.println(InetAddress.getAllByName(InetAddress.getLocalHost().getHostName()));
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4_FIRST;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6_FIRST;
import jdk.test.lib.net.IPSupport;
import jdk.test.lib.NetworkConfiguration;
import org.testng.annotations.Test;
import org.testng.Assert;
import org.testng.SkipException;
/*
* @test
* @summary Test that platform lookup characteristic value is correctly initialized from
* system properties affecting order and type of queried addresses.
* @library lib providers/simple /test/lib
* @build test.library/testlib.ResolutionRegistry simple.provider/impl.SimpleResolverProviderImpl
* jdk.test.lib.net.IPSupport LookupPolicyMappingTest
* @run testng/othervm LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack=false LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv4Stack LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest
* @run testng/othervm -Djava.net.preferIPv6Addresses LookupPolicyMappingTest
*/
public class LookupPolicyMappingTest {
@Test
public void testSystemProperties() throws Exception {
// Check if platform network configuration matches the test requirements,
// if not throw a SkipException
checkPlatformNetworkConfiguration();
System.err.println("javaTest.org resolved to:" + Arrays.deepToString(
InetAddress.getAllByName("javaTest.org")));
// Acquire runtime characteristics from the test NSP
int runtimeCharacteristics = impl.SimpleResolverProviderImpl.lastLookupPolicy().characteristics();
// Calculate expected lookup policy characteristic
String preferIPv4Stack = System.getProperty("java.net.preferIPv4Stack");
String preferIPv6Addresses = System.getProperty("java.net.preferIPv6Addresses");
String expectedResultsKey = calculateMapKey(preferIPv4Stack, preferIPv6Addresses);
int expectedCharacteristics = EXPECTED_RESULTS_MAP.get(expectedResultsKey);
Assert.assertTrue(characteristicsMatch(
runtimeCharacteristics, expectedCharacteristics), "Unexpected LookupPolicy observed");
}
// Throws SkipException if platform doesn't support required IP address types
static void checkPlatformNetworkConfiguration() {
IPSupport.throwSkippedExceptionIfNonOperational();
IPSupport.printPlatformSupport(System.err);
NetworkConfiguration.printSystemConfiguration(System.err);
// If preferIPv4=true and no IPv4 - skip
if (IPSupport.preferIPv4Stack()) {
if (!IPSupport.hasIPv4()) {
throw new SkipException("Skip tests - IPv4 support required");
}
return;
}
}
record ExpectedResult(String ipv4stack, String ipv6addresses, int characteristics) {
ExpectedResult {
if (!IPSupport.hasIPv4()) {
characteristics = IPV6;
} else if (!IPSupport.hasIPv6()) {
characteristics = IPV4;
}
}
public String key() {
return calculateMapKey(ipv4stack, ipv6addresses);
}
}
/*
* Each row describes a combination of 'preferIPv4Stack', 'preferIPv6Addresses'
* values and the expected characteristic value
*/
private static List<ExpectedResult> EXPECTED_RESULTS_TABLE = List.of(
new ExpectedResult("true", "true", IPV4),
new ExpectedResult("true", "false", IPV4),
new ExpectedResult("true", "system", IPV4),
new ExpectedResult("true", "", IPV4),
new ExpectedResult("true", null, IPV4),
new ExpectedResult("false", "true", IPV4 | IPV6 | IPV6_FIRST),
new ExpectedResult("false", "false", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult("false", "system", IPV4 | IPV6),
new ExpectedResult("false", "", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult("false", null, IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult("", "true", IPV4 | IPV6 | IPV6_FIRST),
new ExpectedResult("", "false", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult("", "system", IPV4 | IPV6),
new ExpectedResult("", "", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult("", null, IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult(null, "true", IPV4 | IPV6 | IPV6_FIRST),
new ExpectedResult(null, "false", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult(null, "system", IPV4 | IPV6),
new ExpectedResult(null, "", IPV4 | IPV6 | IPV4_FIRST),
new ExpectedResult(null, null, IPV4 | IPV6 | IPV4_FIRST));
private static final Map<String, Integer> EXPECTED_RESULTS_MAP = calculateExpectedCharacteristics();
private static Map<String, Integer> calculateExpectedCharacteristics() {
return EXPECTED_RESULTS_TABLE.stream()
.collect(Collectors.toUnmodifiableMap(
ExpectedResult::key,
ExpectedResult::characteristics)
);
}
private static String calculateMapKey(String ipv4stack, String ipv6addresses) {
return ipv4stack + "_" + ipv6addresses;
}
private static boolean characteristicsMatch(int actual, int expected) {
System.err.printf("Comparing characteristics:%n\tActual: %s%n\tExpected: %s%n",
Integer.toBinaryString(actual),
Integer.toBinaryString(expected));
return (actual & (IPV4 | IPV6 | IPV4_FIRST | IPV6_FIRST)) == expected;
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @summary check if LookupPolicy.of correctly handles valid and illegal
* combinations of characteristics bit mask flags.
* @run testng LookupPolicyOfTest
*/
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.net.spi.InetAddressResolver.LookupPolicy;
import java.util.List;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4_FIRST;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6;
import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6_FIRST;
public class LookupPolicyOfTest {
@Test(dataProvider = "validCharacteristics")
public void testValidCharacteristicCombinations(List<Integer> validCombination) {
LookupPolicy.of(bitFlagsToCharacteristicsValue(validCombination));
}
@Test(dataProvider = "invalidCharacteristics", expectedExceptions = IllegalArgumentException.class)
public void testInvalidCharacteristicCombinations(List<Integer> invalidCombination) {
LookupPolicy.of(bitFlagsToCharacteristicsValue(invalidCombination));
}
@DataProvider(name = "validCharacteristics")
public Object[][] validCharacteristicValue() {
return new Object[][]{
{List.of(IPV4)},
{List.of(IPV4, IPV4_FIRST)},
{List.of(IPV6)},
{List.of(IPV6, IPV6_FIRST)},
{List.of(IPV4, IPV6)},
{List.of(IPV4, IPV6, IPV4_FIRST)},
{List.of(IPV4, IPV6, IPV6_FIRST)},
// Custom flag values alongside to address type flags
// that could be used by custom providers
{List.of(IPV4, IPV6, 0x10)},
{List.of(IPV4, IPV6, 0x20)},
};
}
@DataProvider(name = "invalidCharacteristics")
public Object[][] illegalCharacteristicValue() {
return new Object[][]{
{List.of()},
{List.of(IPV4_FIRST)},
{List.of(IPV6_FIRST)},
{List.of(IPV4_FIRST, IPV6_FIRST)},
{List.of(IPV4, IPV6_FIRST)},
{List.of(IPV6, IPV4_FIRST)},
{List.of(IPV4, IPV6, IPV4_FIRST, IPV6_FIRST)},
};
}
private static int bitFlagsToCharacteristicsValue(List<Integer> bitFlagsList) {
return bitFlagsList.stream()
.reduce(0, (flag1, flag2) -> flag1 | flag2);
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.util.Arrays;
import org.testng.Assert;
import org.testng.annotations.Test;
import static impl.FaultyResolverProviderGetImpl.EXCEPTION_MESSAGE;
/*
* @test
* @summary Test that InetAddress fast-fails if custom provider fails to
* instantiate a resolver.
* @library providers/faulty
* @build faulty.provider/impl.FaultyResolverProviderGetImpl
* @run testng/othervm ProviderGetExceptionTest
*/
public class ProviderGetExceptionTest {
@Test
public void getByNameExceptionTest() {
String hostName = "test.host";
System.out.println("Looking up address for the following host name:" + hostName);
callInetAddressAndCheckException(() -> InetAddress.getByName(hostName));
}
@Test
public void getByAddressExceptionTest() {
byte[] address = new byte[]{1, 2, 3, 4};
System.out.println("Looking up host name for the following address:" + Arrays.toString(address));
callInetAddressAndCheckException(() -> InetAddress.getByAddress(address).getHostName());
}
private void callInetAddressAndCheckException(Assert.ThrowingRunnable apiCall) {
IllegalArgumentException iae = Assert.expectThrows(IllegalArgumentException.class, apiCall);
System.out.println("Got exception of expected type:" + iae);
Assert.assertNull(iae.getCause(), "cause is not null");
Assert.assertEquals(iae.getMessage(), EXCEPTION_MESSAGE);
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
import impl.ThrowingLookupsProviderImpl;
import static impl.ThrowingLookupsProviderImpl.RUNTIME_EXCEPTION_MESSAGE;
import org.testng.Assert;
import org.testng.annotations.Test;
/*
* @test
* @summary Test that only UnknownHostException is thrown if resolver
* implementation throws RuntimeException during forward or reverse lookup.
* @library providers/throwing
* @build throwing.lookups.provider/impl.ThrowingLookupsProviderImpl
* @run testng/othervm ResolutionWithExceptionTest
*/
public class ResolutionWithExceptionTest {
@Test
public void getByNameUnknownHostException() {
ThrowingLookupsProviderImpl.throwRuntimeException = false;
runGetByNameTest();
}
@Test
public void getByNameRuntimeException() {
ThrowingLookupsProviderImpl.throwRuntimeException = true;
runGetByNameTest();
}
@Test
public void getByAddressUnknownHostException() throws UnknownHostException {
ThrowingLookupsProviderImpl.throwRuntimeException = false;
runGetByAddressTest();
}
@Test
public void getByAddressRuntimeException() throws UnknownHostException {
ThrowingLookupsProviderImpl.throwRuntimeException = true;
runGetByAddressTest();
}
private void runGetByNameTest() {
// InetAddress.getByName() is expected to throw UnknownHostException in all cases
UnknownHostException uhe = Assert.expectThrows(UnknownHostException.class,
() -> InetAddress.getByName("doesnt.matter.com"));
// If provider is expected to throw RuntimeException - check that UnknownHostException
// is set as its cause
if (ThrowingLookupsProviderImpl.throwRuntimeException) {
Throwable cause = uhe.getCause();
if (cause instanceof RuntimeException re) {
// Check RuntimeException message
Assert.assertEquals(re.getMessage(), RUNTIME_EXCEPTION_MESSAGE,
"incorrect exception message");
} else {
Assert.fail("UnknownHostException cause is not RuntimeException");
}
}
}
private void runGetByAddressTest() throws UnknownHostException {
// getCanonicalHostName is not expected to throw an exception:
// if there is an error during reverse lookup operation the literal IP
// address String will be returned.
String literalIP = InetAddress.getByAddress(new byte[]{1, 2, 3, 4}).getCanonicalHostName();
Assert.assertEquals(literalIP, "1.2.3.4");
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import impl.DelegatingProviderImpl;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.net.InetAddress;
import java.net.UnknownHostException;
import static impl.DelegatingProviderImpl.changeReverseLookupAddress;
import static impl.DelegatingProviderImpl.lastReverseLookupThrowable;
/*
* @test
* @summary checks delegation of illegal reverse lookup request to the built-in
* InetAddressResolver.
* @library providers/delegating
* @build delegating.provider/impl.DelegatingProviderImpl
* @run testng/othervm ReverseLookupDelegationTest
*/
public class ReverseLookupDelegationTest {
@Test
public void delegateHostNameLookupWithWrongByteArray() throws UnknownHostException {
// The underlying resolver implementation will ignore the supplied
// byte array and will replace it with byte array of incorrect size.
changeReverseLookupAddress = true;
String canonicalHostName = InetAddress.getByAddress(new byte[]{1, 2, 3, 4}).getCanonicalHostName();
// Output canonical host name and the exception thrown by the built-in resolver
System.err.println("Canonical host name:" + canonicalHostName);
System.err.println("Exception thrown by the built-in resolver:" + lastReverseLookupThrowable);
// Check that originally supplied byte array was used to construct canonical host name after
// failed reverse lookup.
Assert.assertEquals("1.2.3.4", canonicalHostName, "unexpected canonical hostname");
// Check that on a provider side the IllegalArgumentException has been thrown by the built-in resolver
Assert.assertTrue(lastReverseLookupThrowable instanceof IllegalArgumentException,
"wrong exception type is thrown by the built-in resolver");
}
}

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# Test data file for InetAddressResolverProvider SPI tests
# Format: <IP address> <Host Name>
# If multiple IP addresses are required for host:
# multiple lines could be added
1.2.3.4 javaTest.org
[ca:fe:ba:be::1] javaTest.org

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
module test.library {
exports testlib;
requires java.logging;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package testlib;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver.LookupPolicy;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Predicate;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import java.util.Comparator;
import static java.net.spi.InetAddressResolver.LookupPolicy.*;
public class ResolutionRegistry {
// Map to store hostName -> InetAddress mappings
private final Map<String, List<byte[]>> registry;
private static final int IPV4_RAW_LEN = 4;
private static final int IPV6_RAW_LEN = 16;
private static final Logger LOGGER = Logger.getLogger(ResolutionRegistry.class.getName());
public ResolutionRegistry() {
// Populate registry from test data file
String fileName = System.getProperty("test.dataFileName", "addresses.txt");
Path addressesFile = Paths.get(System.getProperty("test.src", ".")).resolve(fileName);
LOGGER.info("Creating ResolutionRegistry instance from file:" + addressesFile);
registry = parseDataFile(addressesFile);
}
private Map<String, List<byte[]>> parseDataFile(Path addressesFile) {
try {
if (addressesFile.toFile().isFile()) {
Map<String, List<byte[]>> resReg = new ConcurrentHashMap<>();
// Prepare list of hostname/address entries
List<String[]> entriesList = Files.readAllLines(addressesFile).stream()
.map(String::trim)
.filter(Predicate.not(String::isBlank))
.filter(s -> !s.startsWith("#"))
.map(s -> s.split("\\s+"))
.filter(sarray -> sarray.length == 2)
.filter(ResolutionRegistry::hasLiteralAddress)
.filter(Objects::nonNull)
.collect(Collectors.toList());
// Convert list of entries into registry Map
for (var entry : entriesList) {
String ipAddress = entry[0].trim();
String hostName = entry[1].trim();
byte[] addrBytes = toByteArray(ipAddress);
if (addrBytes != null) {
var list = resReg.containsKey(hostName) ? resReg.get(hostName) : new ArrayList();
list.add(addrBytes);
if (!resReg.containsKey(hostName)) {
resReg.put(hostName, list);
}
}
}
resReg.replaceAll((k, v) -> Collections.unmodifiableList(v));
// Print constructed registry
StringBuilder sb = new StringBuilder("Constructed addresses registry:" + System.lineSeparator());
for (var entry : resReg.entrySet()) {
sb.append("\t" + entry.getKey() + ": ");
for (byte[] addr : entry.getValue()) {
sb.append(addressBytesToString(addr) + " ");
}
sb.append(System.lineSeparator());
}
LOGGER.info(sb.toString());
return resReg;
} else {
// If file doesn't exist - return empty map
return Collections.emptyMap();
}
} catch (IOException ioException) {
// If any problems parsing the file - log a warning and return an empty map
LOGGER.log(Level.WARNING, "Error reading data file", ioException);
return Collections.emptyMap();
}
}
// Line is not a blank and not a comment
private static boolean hasLiteralAddress(String[] lineFields) {
String addressString = lineFields[0].trim();
return addressString.charAt(0) == '[' ||
Character.digit(addressString.charAt(0), 16) != -1 ||
(addressString.charAt(0) == ':');
}
// Line is not blank and not comment
private static byte[] toByteArray(String addressString) {
InetAddress address;
// Will reuse InetAddress functionality to parse literal IP address
// strings. This call is guarded by 'hasLiteralAddress' method.
try {
address = InetAddress.getByName(addressString);
} catch (UnknownHostException unknownHostException) {
LOGGER.warning("Can't parse address string:'" + addressString + "'");
return null;
}
return address.getAddress();
}
public Stream<InetAddress> lookupHost(String host, LookupPolicy lookupPolicy)
throws UnknownHostException {
LOGGER.info("Looking-up '" + host + "' address");
if (!registry.containsKey(host)) {
LOGGER.info("Registry doesn't contain addresses for '" + host + "'");
throw new UnknownHostException(host);
}
int characteristics = lookupPolicy.characteristics();
// Filter IPV4 or IPV6 as needed. Then sort with
// comparator for IPV4_FIRST or IPV6_FIRST.
return registry.get(host)
.stream()
.filter(ba -> filterAddressByLookupPolicy(ba, characteristics))
.sorted(new AddressOrderPref(characteristics))
.map(ba -> constructInetAddress(host, ba))
.filter(Objects::nonNull);
}
private static boolean filterAddressByLookupPolicy(byte[] ba, int ch) {
// If 0011, return both. If 0001, IPv4. If 0010, IPv6
boolean ipv4Flag = (ch & IPV4) == IPV4;
boolean ipv6Flag = (ch & IPV6) == IPV6;
if (ipv4Flag && ipv6Flag)
return true; // Return regardless of length
else if (ipv4Flag)
return (ba.length == IPV4_RAW_LEN);
else if (ipv6Flag)
return (ba.length == IPV6_RAW_LEN);
throw new RuntimeException("Lookup policy characteristics were improperly set. " +
"Characteristics: " + Integer.toString(ch, 2));
}
private static InetAddress constructInetAddress(String host, byte[] address) {
try {
return InetAddress.getByAddress(host, address);
} catch (UnknownHostException unknownHostException) {
return null;
}
}
public String lookupAddress(byte[] addressBytes) {
for (var entry : registry.entrySet()) {
if (entry.getValue()
.stream()
.filter(ba -> Arrays.equals(ba, addressBytes))
.findAny()
.isPresent()) {
return entry.getKey();
}
}
try {
return InetAddress.getByAddress(addressBytes).getHostAddress();
} catch (UnknownHostException unknownHostException) {
throw new IllegalArgumentException();
}
}
public boolean containsAddressMapping(InetAddress address) {
String hostName = address.getHostName();
if (registry.containsKey(hostName)) {
var mappedBytes = registry.get(address.getHostName());
for (byte[] mappedAddr : mappedBytes) {
if (Arrays.equals(mappedAddr, address.getAddress())) {
return true;
}
}
}
return false;
}
public static String addressBytesToString(byte[] bytes) {
try {
return InetAddress.getByAddress(bytes).toString();
} catch (UnknownHostException unknownHostException) {
return Arrays.toString(bytes);
}
}
private class AddressOrderPref implements Comparator<byte[]> {
private final int ch;
AddressOrderPref(int ch) {
this.ch = ch;
}
@Override
public int compare(byte[] o1, byte[] o2) {
// Compares based on address length, 4 bytes for IPv4,
// 16 bytes for IPv6.
return ((ch & IPV4_FIRST) == IPV4_FIRST) ?
Integer.compare(o1.length, o2.length) :
Integer.compare(o2.length, o1.length);
}
}
}

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networkaddress.cache.ttl=7
networkaddress.cache.negative.ttl=3
networkaddress.cache.stale.ttl=30

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networkaddress.cache.ttl=-1
networkaddress.cache.negative.ttl=-1

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networkaddress.cache.ttl=-1
networkaddress.cache.negative.ttl=-1
networkaddress.cache.stale.ttl=-1

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networkaddress.cache.ttl=-1
networkaddress.cache.negative.ttl=-1
networkaddress.cache.stale.ttl=10000

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networkaddress.cache.ttl=-1
networkaddress.cache.negative.ttl=-1
networkaddress.cache.stale.ttl=0

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networkaddress.cache.ttl=0
networkaddress.cache.negative.ttl=0

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networkaddress.cache.ttl=0
networkaddress.cache.negative.ttl=0
networkaddress.cache.stale.ttl=-1

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networkaddress.cache.ttl=0
networkaddress.cache.negative.ttl=0
networkaddress.cache.stale.ttl=10000

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networkaddress.cache.ttl=0
networkaddress.cache.negative.ttl=0
networkaddress.cache.stale.ttl=0

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolverProvider;
import java.util.stream.Stream;
public class WithBootstrapResolverUsageProvider extends InetAddressResolverProvider {
public static volatile long numberOfGetCalls;
@Override
public InetAddressResolver get(Configuration configuration) {
numberOfGetCalls++;
System.out.println("The following provider will be used by current test:" +
this.getClass().getCanonicalName());
System.out.println("InetAddressResolverProvider::get() called " + numberOfGetCalls + " times");
// We use different names to avoid InetAddress-level caching
doLookup("foo" + numberOfGetCalls + ".A.org");
// We need second call to test how InetAddress internals maintain reference to a bootstrap resolver
doLookup("foo" + numberOfGetCalls + ".B.org");
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy)
throws UnknownHostException {
return Stream.of(InetAddress.getByAddress(host, new byte[]{127, 0, 2, 1}));
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
return configuration.builtinResolver().lookupByAddress(addr);
}
};
}
// Perform an InetAddress resolution lookup operation
private static void doLookup(String hostName) {
try {
InetAddress.getByName(hostName);
} catch (UnknownHostException e) {
// Ignore UHE since the bootstrap resolver is used here
}
}
@Override
public String name() {
return "WithBootstrapResolverUsageProvider";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module bootstrap.usage.provider {
exports impl;
requires java.logging;
provides InetAddressResolverProvider with impl.WithBootstrapResolverUsageProvider;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolverProvider;
import java.util.stream.Stream;
public class DelegatingProviderImpl extends InetAddressResolverProvider {
public static volatile boolean changeReverseLookupAddress;
public static volatile Throwable lastReverseLookupThrowable;
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" +
this.getClass().getCanonicalName());
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) throws UnknownHostException {
return configuration.builtinResolver().lookupByName(host, lookupPolicy);
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
try {
if (!changeReverseLookupAddress) {
return configuration.builtinResolver().lookupByAddress(addr);
} else {
// Deliberately supply address bytes array with wrong size
return configuration.builtinResolver().lookupByAddress(new byte[]{1, 2, 3});
}
} catch (Throwable t) {
lastReverseLookupThrowable = t;
throw t;
}
}
};
}
@Override
public String name() {
return "DelegatingProvider";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module delegating.provider {
exports impl;
provides InetAddressResolverProvider with impl.DelegatingProviderImpl;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolverProvider;
import java.util.stream.Stream;
public class EmptyResultsProviderImpl extends InetAddressResolverProvider {
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" +
this.getClass().getCanonicalName());
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy)
throws UnknownHostException {
return Stream.empty();
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
return configuration.builtinResolver().lookupByAddress(addr);
}
};
}
@Override
public String name() {
return "EmptyForwardLookupResultsProvider";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module empty.results.provider {
exports impl;
provides InetAddressResolverProvider with impl.EmptyResultsProviderImpl;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.spi.InetAddressResolverProvider;
import java.net.spi.InetAddressResolver;
public class FaultyResolverProviderGetImpl extends InetAddressResolverProvider {
public static final String EXCEPTION_MESSAGE = "This provider provides nothing";
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" + this.getClass().getCanonicalName());
throw new IllegalArgumentException(EXCEPTION_MESSAGE);
}
@Override
public String name() {
return "faultyInetAddressResolverGet";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module faulty.provider {
exports impl;
requires java.logging;
provides InetAddressResolverProvider with impl.FaultyResolverProviderGetImpl;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolverProvider;
import java.util.stream.Stream;
public class InetAddressUsageInGetProviderImpl extends InetAddressResolverProvider {
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" + this.getClass().getCanonicalName());
String localHostName;
try {
localHostName = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
throw new RuntimeException("Provider failed to initialize");
}
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) throws UnknownHostException {
if (host.equals(localHostName)) {
return configuration.builtinResolver().lookupByName(host, lookupPolicy);
} else {
throw new UnknownHostException(host);
}
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
return configuration.builtinResolver().lookupByAddress(addr);
}
};
}
@Override
public String name() {
return "ProviderWithInetAddressUsageInGet";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module recursive.init.provider {
exports impl;
requires java.logging;
provides InetAddressResolverProvider with impl.InetAddressUsageInGetProviderImpl;
}

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/*
* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolver.LookupPolicy;
import java.net.spi.InetAddressResolverProvider;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.logging.Logger;
import java.util.stream.Stream;
import testlib.ResolutionRegistry;
public class SimpleResolverProviderImpl extends InetAddressResolverProvider {
public static ResolutionRegistry registry = new ResolutionRegistry();
private static List<LookupPolicy> LOOKUP_HISTORY = Collections.synchronizedList(new ArrayList<>());
private static volatile long LAST_LOOKUP_TIMESTAMP;
private static volatile boolean unreachableServer;
private static volatile CountDownLatch blocker;
private static Logger LOGGER = Logger.getLogger(SimpleResolverProviderImpl.class.getName());
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" + this.getClass().getCanonicalName());
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) throws UnknownHostException {
LOGGER.info("Looking-up addresses for '" + host + "'. Lookup characteristics:" +
Integer.toString(lookupPolicy.characteristics(), 2));
if (blocker != null) {
try {
blocker.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
LOOKUP_HISTORY.add(lookupPolicy);
LAST_LOOKUP_TIMESTAMP = System.nanoTime();
if (unreachableServer) {
throw new UnknownHostException("unreachableServer");
}
return registry.lookupHost(host, lookupPolicy);
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
LOGGER.info("Looking host name for the following address:" + ResolutionRegistry.addressBytesToString(addr));
if (unreachableServer) {
throw new UnknownHostException("unreachableServer");
}
return registry.lookupAddress(addr);
}
};
}
// Utility methods
public static LookupPolicy lastLookupPolicy() {
return lookupPolicyHistory(0);
}
public static long getLastLookupTimestamp() {
return LAST_LOOKUP_TIMESTAMP;
}
public static void setUnreachableServer(boolean unreachableServer) {
SimpleResolverProviderImpl.unreachableServer = unreachableServer;
}
public static void setBlocker(CountDownLatch blocker) {
SimpleResolverProviderImpl.blocker = blocker;
}
public static LookupPolicy lookupPolicyHistory(int position) {
if (LOOKUP_HISTORY.isEmpty()) {
throw new RuntimeException("No registered lookup policies");
}
if (position >= LOOKUP_HISTORY.size()) {
throw new IllegalArgumentException("No element available with provided position");
}
return LOOKUP_HISTORY.get(LOOKUP_HISTORY.size() - position - 1);
}
@Override
public String name() {
return "simpleInetAddressResolver";
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module simple.provider {
exports impl;
requires java.logging;
requires test.library;
provides InetAddressResolverProvider with impl.SimpleResolverProviderImpl;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package impl;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolverProvider;
import java.util.stream.Stream;
public class ThrowingLookupsProviderImpl extends InetAddressResolverProvider {
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" +
this.getClass().getCanonicalName());
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy)
throws UnknownHostException {
if (throwRuntimeException) {
System.err.println(name()+" forward lookup: throwing RuntimeException");
throw new RuntimeException(RUNTIME_EXCEPTION_MESSAGE);
} else {
System.err.println(name()+" forward lookup: throwing UnknownHostException");
throw new UnknownHostException();
}
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
if (throwRuntimeException) {
System.err.println(name()+" reverse lookup: throwing RuntimeException");
throw new RuntimeException(RUNTIME_EXCEPTION_MESSAGE);
} else {
System.err.println(name()+" reverse lookup: throwing UnknownHostException");
throw new UnknownHostException();
}
}
};
}
@Override
public String name() {
return "ThrowingLookupsProvider";
}
// Indicates if provider need to throw RuntimeException for forward and reverse lookup operations.
// If it is set to 'false' then UnknownHostException will thrown for each operation.
public static volatile boolean throwRuntimeException;
public static final String RUNTIME_EXCEPTION_MESSAGE = "This provider only throws exceptions";
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.spi.InetAddressResolverProvider;
module throwing.lookups.provider {
exports impl;
provides InetAddressResolverProvider with impl.ThrowingLookupsProviderImpl;
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import org.testng.annotations.Test;
import static org.testng.Assert.assertThrows;
/*
* @test
* @summary Test that InetAddressResolverProvider implementation can be installed to a class path.
* @library ../../lib
* @build test.library/testlib.ResolutionRegistry ClasspathResolverProviderImpl
* @run testng/othervm ClasspathProviderTest
*/
public class ClasspathProviderTest {
@Test
public void testResolution() throws Exception {
InetAddress inetAddress = InetAddress.getByName("classpath-provider-test.org");
System.err.println("Resolved address:" + inetAddress);
if (!ClasspathResolverProviderImpl.registry.containsAddressMapping(inetAddress)) {
throw new RuntimeException("InetAddressResolverProvider was not properly installed");
}
}
}

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.spi.InetAddressResolverProvider;
import java.net.spi.InetAddressResolver;
import java.net.spi.InetAddressResolver.LookupPolicy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Logger;
import java.util.stream.Stream;
import testlib.ResolutionRegistry;
public class ClasspathResolverProviderImpl extends InetAddressResolverProvider {
public static ResolutionRegistry registry = new ResolutionRegistry();
private static List<LookupPolicy> LOOKUP_HISTORY = Collections.synchronizedList(new ArrayList<>());
private static Logger LOGGER = Logger.getLogger(ClasspathResolverProviderImpl.class.getName());
@Override
public InetAddressResolver get(Configuration configuration) {
System.out.println("The following provider will be used by current test:" + this.getClass().getCanonicalName());
return new InetAddressResolver() {
@Override
public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) throws UnknownHostException {
LOGGER.info("Looking-up addresses for '" + host + "'. Lookup characteristics:" +
Integer.toString(lookupPolicy.characteristics(), 2));
LOOKUP_HISTORY.add(lookupPolicy);
return registry.lookupHost(host, lookupPolicy);
}
@Override
public String lookupByAddress(byte[] addr) throws UnknownHostException {
LOGGER.info("Looking host name for the following address:" + ResolutionRegistry.addressBytesToString(addr));
return registry.lookupAddress(addr);
}
};
}
@Override
public String name() {
return "classpathINSP";
}
}

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# Test data file for classpath origin type tests.
# Format: <IP address> <Host Name>
# If multiple IP addresses are required for host:
# multiple lines could be added
1.2.3.4 classpath-provider-test.org
[ca:fe:ba:be::1] classpath-provider-test.org

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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import org.testng.annotations.Test;
/*
* @test
* @summary Test that implementation of InetAddressResolverProvider can be installed to a module path.
* @library ../../lib ../../providers/simple
* @build test.library/testlib.ResolutionRegistry simple.provider/impl.SimpleResolverProviderImpl
* ModularProviderTest
* @run testng/othervm ModularProviderTest
*/
public class ModularProviderTest {
@Test
public void testResolution() throws Exception {
InetAddress inetAddress = InetAddress.getByName("modular-provider-test.org");
System.err.println("Resolved address:" + inetAddress);
if (!impl.SimpleResolverProviderImpl.registry.containsAddressMapping(inetAddress)) {
throw new RuntimeException("InetAddressResolverProvider was not properly installed");
}
}
}

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# Test data file for tests in modularTests directory
# Format: <IP address> <Host Name>
# If multiple IP addresses are required for host:
# multiple lines could be added
1.2.3.4 modular-provider-test.org
[ca:fe:ba:be::1] modular-provider-test.org

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/*
* Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.File;
import java.io.FileWriter;
import java.io.Reader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.SequenceInputStream;
import java.io.StringWriter;
import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.function.Consumer;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import javax.tools.ToolProvider;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.util.FileUtils;
import jdk.test.lib.JDKToolFinder;
import static java.lang.String.format;
import static java.util.Arrays.asList;
/*
* @test
* @bug 8064924
* @modules jdk.compiler
* @summary Basic test for URLStreamHandlerProvider
* @library /test/lib
* @build jdk.test.lib.Platform
* jdk.test.lib.util.FileUtils
* jdk.test.lib.JDKToolFinder
* @compile Basic.java Child.java
* @run main Basic
*/
public class Basic {
static final Path TEST_SRC = Paths.get(System.getProperty("test.src", "."));
static final Path TEST_CLASSES = Paths.get(System.getProperty("test.classes", "."));
public static void main(String[] args) throws Throwable {
unknownProtocol("foo", UNKNOWN);
unknownProtocol("bar", UNKNOWN);
viaProvider("baz", KNOWN);
viaProvider("bert", KNOWN);
viaBadProvider("tom", SCE);
viaBadProvider("jerry", SCE);
viaCircularProvider("circular", CIRCULAR);
}
private static String withoutWarning(String in) {
return in.lines().filter(s -> !s.startsWith("WARNING:")).collect(Collectors.joining());
}
static final Consumer<Result> KNOWN = r -> {
if (r.exitValue != 0 || !withoutWarning(r.output).isEmpty())
throw new RuntimeException("[" + r.output + "]");
};
static final Consumer<Result> UNKNOWN = r -> {
if (r.exitValue == 0 ||
!r.output.contains("java.net.MalformedURLException: unknown protocol")) {
throw new RuntimeException("exitValue: "+ r.exitValue + ", output:[" +r.output +"]");
}
};
static final Consumer<Result> SCE = r -> {
if (r.exitValue == 0 ||
!r.output.contains("java.util.ServiceConfigurationError")) {
throw new RuntimeException("exitValue: "+ r.exitValue + ", output:[" +r.output +"]");
}
};
static final Consumer<Result> CIRCULAR = r -> {
if (r.exitValue == 0 ||
!r.output.contains("Circular loading of URL stream handler providers detected")) {
throw new RuntimeException("exitValue: " + r.exitValue + ", output:[" + r.output + "]");
}
};
static void unknownProtocol(String protocol, Consumer<Result> resultChecker) {
System.out.println("\nTesting " + protocol);
Result r = java(Collections.emptyList(), asList(TEST_CLASSES),
"Child", protocol);
resultChecker.accept(r);
}
static void viaProvider(String protocol, Consumer<Result> resultChecker,
String... sysProps)
throws Exception
{
viaProviderWithTemplate(protocol, resultChecker,
TEST_SRC.resolve("provider.template"),
sysProps);
}
static void viaBadProvider(String protocol, Consumer<Result> resultChecker,
String... sysProps)
throws Exception
{
viaProviderWithTemplate(protocol, resultChecker,
TEST_SRC.resolve("bad.provider.template"),
sysProps);
}
static void viaCircularProvider(String protocol, Consumer<Result> resultChecker,
String... sysProps)
throws Exception
{
viaProviderWithTemplate(protocol, resultChecker,
TEST_SRC.resolve("circular.provider.template"),
sysProps);
}
static void viaProviderWithTemplate(String protocol,
Consumer<Result> resultChecker,
Path template, String... sysProps)
throws Exception
{
System.out.println("\nTesting " + protocol);
Path testRoot = Paths.get("URLStreamHandlerProvider-" + protocol);
if (Files.exists(testRoot))
FileUtils.deleteFileTreeWithRetry(testRoot);
Files.createDirectory(testRoot);
Path srcPath = Files.createDirectory(testRoot.resolve("src"));
Path srcClass = createProvider(protocol, template, srcPath);
Path build = Files.createDirectory(testRoot.resolve("build"));
javac(build, srcClass);
createServices(build, protocol);
Path testJar = testRoot.resolve("test.jar");
jar(testJar, build);
List<String> props = new ArrayList<>();
for (String p : sysProps)
props.add(p);
Result r = java(props, asList(testJar, TEST_CLASSES),
"Child", protocol);
resultChecker.accept(r);
}
static String platformPath(String p) { return p.replace("/", File.separator); }
static String binaryName(String name) { return name.replace(".", "/"); }
static final String SERVICE_IMPL_PREFIX = "net.java.openjdk.test";
static void createServices(Path dst, String protocol) throws IOException {
Path services = Files.createDirectories(dst.resolve("META-INF")
.resolve("services"));
final String implName = SERVICE_IMPL_PREFIX + "." + protocol + ".Provider";
Path s = services.resolve("java.net.spi.URLStreamHandlerProvider");
FileWriter fw = new FileWriter(s.toFile());
try {
fw.write(implName);
} finally {
fw.close();
}
}
static Path createProvider(String protocol, Path srcTemplate, Path dst)
throws IOException
{
String pkg = SERVICE_IMPL_PREFIX + "." + protocol;
Path classDst = dst.resolve(platformPath(binaryName(pkg)));
Files.createDirectories(classDst);
Path classPath = classDst.resolve("Provider.java");
List<String> lines = Files.lines(srcTemplate)
.map(s -> s.replaceAll("\\$package", pkg))
.map(s -> s.replaceAll("\\$protocol", protocol))
.collect(Collectors.toList());
Files.write(classPath, lines);
return classPath;
}
static void jar(Path jarName, Path jarRoot) { String jar = getJDKTool("jar");
ProcessBuilder p = new ProcessBuilder(jar, "cf", jarName.toString(),
"-C", jarRoot.toString(), ".");
quickFail(run(p));
}
static void javac(Path dest, Path... sourceFiles) throws IOException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager fileManager =
compiler.getStandardFileManager(null, null, null)) {
List<File> files = Stream.of(sourceFiles)
.map(p -> p.toFile())
.collect(Collectors.toList());
List<File> dests = Stream.of(dest)
.map(p -> p.toFile())
.collect(Collectors.toList());
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(files);
fileManager.setLocation(StandardLocation.CLASS_OUTPUT, dests);
JavaCompiler.CompilationTask task =
compiler.getTask(null, fileManager, null, null, null, compilationUnits);
boolean passed = task.call();
if (!passed)
throw new RuntimeException("Error compiling " + files);
}
}
static void quickFail(Result r) {
if (r.exitValue != 0)
throw new RuntimeException(r.output);
}
static Result java(List<String> sysProps, Collection<Path> classpath,
String classname, String arg) {
List<String> commands = new ArrayList<>(sysProps);
String cp = classpath.stream()
.map(Path::toString)
.collect(Collectors.joining(File.pathSeparator));
commands.add("-cp");
commands.add(cp);
commands.add(classname);
commands.add(arg);
return run(ProcessTools.createTestJavaProcessBuilder(commands));
}
static Result run(ProcessBuilder pb) {
Process p = null;
System.out.println("running: " + pb.command());
try {
p = pb.start();
} catch (IOException e) {
throw new RuntimeException(
format("Couldn't start process '%s'", pb.command()), e);
}
String output;
try {
output = toString(p.getInputStream(), p.getErrorStream());
} catch (IOException e) {
throw new RuntimeException(
format("Couldn't read process output '%s'", pb.command()), e);
}
try {
p.waitFor();
} catch (InterruptedException e) {
throw new RuntimeException(
format("Process hasn't finished '%s'", pb.command()), e);
}
return new Result(p.exitValue(), output);
}
static final String DEFAULT_IMAGE_BIN = System.getProperty("java.home")
+ File.separator + "bin" + File.separator;
static String getJDKTool(String name) {
try {
return JDKToolFinder.getJDKTool(name);
} catch (Exception x) {
return DEFAULT_IMAGE_BIN + name;
}
}
static String toString(InputStream... src) throws IOException {
StringWriter dst = new StringWriter();
Reader concatenated =
new InputStreamReader(
new SequenceInputStream(
Collections.enumeration(asList(src))));
copy(concatenated, dst);
return dst.toString();
}
static void copy(Reader src, Writer dst) throws IOException {
int len;
char[] buf = new char[1024];
try {
while ((len = src.read(buf)) != -1)
dst.write(buf, 0, len);
} finally {
try {
src.close();
} catch (IOException ignored1) {
} finally {
try {
dst.close();
} catch (IOException ignored2) {
}
}
}
}
static class Result {
final int exitValue;
final String output;
private Result(int exitValue, String output) {
this.exitValue = exitValue;
this.output = output;
}
}
}

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/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.MalformedURLException;
import java.net.URL;
public class Child {
public static void main(String[] args) throws MalformedURLException {
if (args.length != 1) {
System.err.println("Usage: java Child <protocol>");
return;
}
String protocol = args[0];
URL url = new URL(protocol + "://");
// toExternalForm should return the protocol string
String s = url.toExternalForm();
if (!s.equals(protocol)) {
System.err.println("Expected url.toExternalForm to return "
+ protocol + ", but got: " + s);
System.exit(1);
}
}
}

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/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package $package;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.spi.URLStreamHandlerProvider;
public class Provider extends URLStreamHandlerProvider {
public Provider(String someRandomArg) { // No no-args constructor
super();
}
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
return null;
}
}

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/*
* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package $package;
import java.io.IOException;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.spi.URLStreamHandlerProvider;
public final class Provider extends URLStreamHandlerProvider {
private static final String PROTOCOL = "$protocol";
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
try {
// Trigger circular lookup
URI.create("bogus://path/to/nothing").toURL();
} catch (Exception exception) {
throw new RuntimeException(exception);
}
throw new AssertionError("Should not have reached here!");
}
}

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/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package $package;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.spi.URLStreamHandlerProvider;
public class Provider extends URLStreamHandlerProvider {
private static final String PROTOCOL = "$protocol";
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
if (!PROTOCOL.equals(protocol))
return null;
return new Handler();
}
static class Handler extends URLStreamHandler {
public URLConnection openConnection(URL u) throws java.io.IOException {
return null;
}
public String toExternalForm(URL u) { return PROTOCOL; }
}
}