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

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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.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/tools/launcher/modules/addreads/AddReadsTest.java Normal file
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/*
* Copyright (c) 2015, 2018, 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
* @library /test/lib
* @modules jdk.compiler
* @build AddReadsTest
* jdk.test.lib.compiler.CompilerUtils
* jdk.test.lib.util.JarUtils
* @run testng AddReadsTest
* @summary Basic tests for java --add-reads
*/
import java.nio.file.Path;
import java.nio.file.Paths;
import jdk.test.lib.compiler.CompilerUtils;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.util.JarUtils;
import static jdk.test.lib.process.ProcessTools.*;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
/**
* The tests consists of two modules: m1 and junit.
* Code in module m1 calls into code in module junit but the module-info.java
* does not have a 'requires'. Instead a read edge is added via the command
* line option --add-reads.
*/
@Test
public class AddReadsTest {
private static final String TEST_SRC = System.getProperty("test.src");
private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
private static final Path CLASSES_DIR = Paths.get("classes");
private static final Path MODS_DIR = Paths.get("mods");
private static final String MAIN = "m1/p.Main";
@BeforeTest
public void setup() throws Exception {
// javac -d classes src/junit/**
assertTrue(CompilerUtils
.compile(SRC_DIR.resolve("junit"), CLASSES_DIR));
// javac -d mods/m1 -cp classes/ src/m1/**
assertTrue(CompilerUtils
.compile(SRC_DIR.resolve("m1"),
MODS_DIR.resolve("m1"),
"-cp", CLASSES_DIR.toString(),
"--add-reads", "m1=ALL-UNNAMED"));
// jar cf mods/junit.jar -C classes .
JarUtils.createJarFile(MODS_DIR.resolve("junit.jar"), CLASSES_DIR);
}
private OutputAnalyzer run(String... options) throws Exception {
return executeTestJava(options)
.outputTo(System.out)
.errorTo(System.out);
}
/**
* Run with junit as a module on the module path.
*/
public void testJUnitOnModulePath() throws Exception {
// java --module-path mods --add-modules junit --add-reads m1=junit -m ..
int exitValue
= run("--module-path", MODS_DIR.toString(),
"--add-modules", "junit",
"--add-reads", "m1=junit",
"-m", MAIN)
.getExitValue();
assertTrue(exitValue == 0);
}
/**
* Exercise --add-reads m1=ALL-UNNAMED by running with junit on the
* class path.
*/
public void testJUnitOnClassPath() throws Exception {
// java --module-path mods -cp mods/junit.jar --add-reads m1=ALL-UNNAMED -m ..
String cp = MODS_DIR.resolve("junit.jar").toString();
int exitValue
= run("--module-path", MODS_DIR.toString(),
"-cp", cp,
"--add-reads", "m1=ALL-UNNAMED",
"-m", MAIN)
.getExitValue();
assertTrue(exitValue == 0);
}
/**
* Run with junit as a module on the module path but without --add-reads.
*/
public void testJUnitOnModulePathMissingAddReads() throws Exception {
// java --module-path mods --add-modules junit --module ..
int exitValue
= run("--module-path", MODS_DIR.toString(),
"--add-modules", "junit",
"--module", MAIN)
.shouldContain("IllegalAccessError")
.getExitValue();
assertTrue(exitValue != 0);
}
/**
* Run with junit on the class path but without --add-reads.
*/
public void testJUnitOnClassPathMissingAddReads() throws Exception {
// java --module-path mods -cp mods/junit.jar -m ..
String cp = MODS_DIR.resolve("junit.jar").toString();
int exitValue
= run("--module-path", MODS_DIR.toString(),
"-cp", cp,
"-m", MAIN)
.shouldContain("IllegalAccessError")
.getExitValue();
assertTrue(exitValue != 0);
}
/**
* Exercise --add-reads with a more than one source module.
*/
public void testJUnitWithMultiValueOption() throws Exception {
int exitValue
= run("--module-path", MODS_DIR.toString(),
"--add-modules", "java.xml,junit",
"--add-reads", "m1=java.xml,junit",
"--module", MAIN)
.getExitValue();
assertTrue(exitValue == 0);
}
/**
* Exercise --add-reads where the target module is specified more than once
*/
public void testWithTargetSpecifiedManyTimes() throws Exception {
int exitValue
= run("--module-path", MODS_DIR.toString(),
"--add-modules", "java.xml,junit",
"--add-reads", "m1=java.xml",
"--add-reads", "m1=junit",
"-m", MAIN)
.getExitValue();
assertTrue(exitValue == 0);
}
/**
* Exercise --add-reads with missing source
*/
public void testWithMissingSource() throws Exception {
// --add-exports $VALUE -version
assertTrue(run("--add-reads", "java.base", "-version").getExitValue() != 0);
}
/**
* Exercise --add-reads with unknown source/target module.
* Warning is emitted.
*/
@Test(dataProvider = "badvalues")
public void testWithBadValue(String value, String ignore) throws Exception {
// --add-exports $VALUE -version
int exitValue = run("--add-reads", value, "-version")
.stderrShouldMatch("WARNING: Unknown module: .*.monkey")
.outputTo(System.out)
.errorTo(System.out)
.getExitValue();
assertTrue(exitValue == 0);
}
@DataProvider(name = "badvalues")
public Object[][] badValues() {
return new Object[][]{
{ "java.monkey=java.base", null }, // unknown module
{ "java.base=sun.monkey", null }, // unknown source
};
}
}