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.
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test/jdk/java/lang/Class/GenericStringTest.java
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test/jdk/java/lang/Class/GenericStringTest.java
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/*
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* Copyright (c) 2013, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6298888 6992705 8161500 6304578 8322878
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* @summary Check Class.toGenericString()
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*/
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import java.lang.reflect.*;
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import java.lang.annotation.*;
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import java.util.*;
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@ExpectedGenericString("public class GenericStringTest")
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public class GenericStringTest {
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public Map<String, Integer>[] mixed = null;
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public Map<String, Integer>[][] mixed2 = null;
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private static record PlatformTestCase(Class<?> clazz, String expected) {}
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public static void main(String... args) throws ReflectiveOperationException {
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int failures = 0;
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String[][] nested = {{""}};
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int[][] intArray = {{1}};
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List<PlatformTestCase> platformTestCases =
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List.of(new PlatformTestCase(int.class, "int"),
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new PlatformTestCase(void.class, "void"),
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new PlatformTestCase(args.getClass(), "java.lang.String[]"),
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new PlatformTestCase(nested.getClass(), "java.lang.String[][]"),
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new PlatformTestCase(intArray.getClass(), "int[][]"),
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new PlatformTestCase(java.lang.Enum.class,
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"public abstract class java.lang.Enum<E extends java.lang.Enum<E>>"),
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new PlatformTestCase(java.util.Map.class,
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"public abstract interface java.util.Map<K,V>"),
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new PlatformTestCase(java.util.EnumMap.class,
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"public class java.util.EnumMap<K extends java.lang.Enum<K>,V>"),
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new PlatformTestCase(java.util.EventListenerProxy.class,
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"public abstract class java.util.EventListenerProxy<T extends java.util.EventListener>"),
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// Sealed class
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new PlatformTestCase(java.lang.ref.Reference.class,
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"public abstract sealed class java.lang.ref.Reference<T>"),
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// non-sealed class
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new PlatformTestCase(java.lang.ref.WeakReference.class,
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"public non-sealed class java.lang.ref.WeakReference<T>")
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);
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for (PlatformTestCase platformTestCase : platformTestCases) {
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failures += checkToGenericString(platformTestCase.clazz,
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platformTestCase.expected);
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}
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Field f = GenericStringTest.class.getDeclaredField("mixed");
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// The expected value includes "<K,V>" rather than
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// "<...String,...Integer>" since the Class object rather than
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// Type objects is being queried.
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failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[]");
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f = GenericStringTest.class.getDeclaredField("mixed2");
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failures += checkToGenericString(f.getType(), "java.util.Map<K,V>[][]");
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for(Class<?> clazz : List.of(GenericStringTest.class,
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AnInterface.class,
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LocalMap.class,
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AnEnum.class,
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AnotherEnum.class,
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SealedRootClass.class,
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SealedRootClass.ChildA.class,
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SealedRootClass.ChildB.class,
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SealedRootClass.ChildB.GrandChildAB.class,
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SealedRootClass.ChildC.class,
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SealedRootClass.ChildC.GrandChildACA.class,
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SealedRootClass.ChildC.GrandChildACB.class,
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SealedRootClass.ChildC.GrandChildACC.class,
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SealedRootClass.ChildC.GrandChildACC.GreatGrandChildACCA.class,
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SealedRootClass.ChildC.GrandChildACC.GreatGrandChildACCB.class,
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SealedRootIntf.class,
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SealedRootIntf.ChildA.class,
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SealedRootIntf.ChildB.class,
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SealedRootIntf.ChildB.GrandChildAB.class,
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SealedRootIntf.ChildC.class,
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SealedRootIntf.ChildC.GrandChildACA.class,
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SealedRootIntf.ChildC.GrandChildACB.class,
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SealedRootIntf.ChildC.GrandChildACC.class,
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SealedRootIntf.ChildC.GrandChildACC.GreatGrandChildACCA.class,
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SealedRootIntf.ChildC.GrandChildACC.GreatGrandChildACCB.class,
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SealedRootIntf.IntfA.class,
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SealedRootIntf.IntfA.IntfAImpl.class,
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SealedRootIntf.IntfB.class,
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SealedRootIntf.IntfB.IntfAImpl.class)) {
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failures += checkToGenericString(clazz, clazz.getAnnotation(ExpectedGenericString.class).value());
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}
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if (failures > 0) {
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throw new RuntimeException();
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}
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}
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private static int checkToGenericString(Class<?> clazz, String expected) {
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String genericString = clazz.toGenericString();
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if (!genericString.equals(expected)) {
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System.err.printf("Unexpected Class.toGenericString output; expected %n\t'%s',%n got %n\t'%s'.%n",
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expected,
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genericString);
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return 1;
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} else
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return 0;
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}
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ExpectedGenericString {
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String value();
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}
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@ExpectedGenericString("abstract interface AnInterface")
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strictfp interface AnInterface {}
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@ExpectedGenericString("abstract interface LocalMap<K,V>")
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interface LocalMap<K,V> {}
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@ExpectedGenericString("final enum AnEnum")
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enum AnEnum {
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FOO;
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}
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// If an enum class has a specialized enum constant, that is compiled
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// by having the enum class as being sealed rather than final. See JLS
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// 8.9 Enum Classes.
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@ExpectedGenericString("sealed enum AnotherEnum")
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enum AnotherEnum {
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BAR{};
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}
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// Test cases for sealed/non-sealed _class_ hierarchy.
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@ExpectedGenericString("sealed class SealedRootClass")
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sealed class SealedRootClass
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permits
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SealedRootClass.ChildA,
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SealedRootClass.ChildB,
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SealedRootClass.ChildC {
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@ExpectedGenericString("final class SealedRootClass$ChildA")
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final class ChildA extends SealedRootClass {}
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@ExpectedGenericString("sealed class SealedRootClass$ChildB")
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sealed class ChildB extends SealedRootClass permits SealedRootClass.ChildB.GrandChildAB {
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@ExpectedGenericString("final class SealedRootClass$ChildB$GrandChildAB")
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final class GrandChildAB extends ChildB {}
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}
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@ExpectedGenericString("non-sealed class SealedRootClass$ChildC")
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non-sealed class ChildC extends SealedRootClass {
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// The subclasses of ChildC do not themselves have to be
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// sealed, non-sealed, or final.
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@ExpectedGenericString("class SealedRootClass$ChildC$GrandChildACA")
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class GrandChildACA extends ChildC {}
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@ExpectedGenericString("final class SealedRootClass$ChildC$GrandChildACB")
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final class GrandChildACB extends ChildC {}
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@ExpectedGenericString("sealed class SealedRootClass$ChildC$GrandChildACC")
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sealed class GrandChildACC extends ChildC {
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@ExpectedGenericString("final class SealedRootClass$ChildC$GrandChildACC$GreatGrandChildACCA")
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final class GreatGrandChildACCA extends GrandChildACC {}
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@ExpectedGenericString("non-sealed class SealedRootClass$ChildC$GrandChildACC$GreatGrandChildACCB")
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non-sealed class GreatGrandChildACCB extends GrandChildACC {}
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}
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}
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}
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// Test cases for sealed/non-sealed _interface_ hierarchy.
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@ExpectedGenericString("abstract sealed interface SealedRootIntf")
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sealed interface SealedRootIntf
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permits
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SealedRootIntf.ChildA,
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SealedRootIntf.ChildB,
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SealedRootIntf.ChildC,
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SealedRootIntf.IntfA,
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SealedRootIntf.IntfB {
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@ExpectedGenericString("public static final class SealedRootIntf$ChildA")
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final class ChildA implements SealedRootIntf {}
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@ExpectedGenericString("public static sealed class SealedRootIntf$ChildB")
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sealed class ChildB implements SealedRootIntf permits SealedRootIntf.ChildB.GrandChildAB {
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@ExpectedGenericString("final class SealedRootIntf$ChildB$GrandChildAB")
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final class GrandChildAB extends ChildB {}
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}
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@ExpectedGenericString("public static non-sealed class SealedRootIntf$ChildC")
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non-sealed class ChildC implements SealedRootIntf {
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// The subclasses of ChildC do not themselves have to be
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// sealed, non-sealed, or final.
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@ExpectedGenericString("class SealedRootIntf$ChildC$GrandChildACA")
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class GrandChildACA extends ChildC {}
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@ExpectedGenericString("final class SealedRootIntf$ChildC$GrandChildACB")
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final class GrandChildACB extends ChildC {}
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@ExpectedGenericString("sealed class SealedRootIntf$ChildC$GrandChildACC")
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sealed class GrandChildACC extends ChildC {
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@ExpectedGenericString("final class SealedRootIntf$ChildC$GrandChildACC$GreatGrandChildACCA")
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final class GreatGrandChildACCA extends GrandChildACC {}
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@ExpectedGenericString("non-sealed class SealedRootIntf$ChildC$GrandChildACC$GreatGrandChildACCB")
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non-sealed class GreatGrandChildACCB extends GrandChildACC {}
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}
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}
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@ExpectedGenericString("public abstract static sealed interface SealedRootIntf$IntfA")
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sealed interface IntfA extends SealedRootIntf {
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@ExpectedGenericString("public static non-sealed class SealedRootIntf$IntfA$IntfAImpl")
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non-sealed class IntfAImpl implements IntfA {}
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}
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@ExpectedGenericString("public abstract static non-sealed interface SealedRootIntf$IntfB")
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non-sealed interface IntfB extends SealedRootIntf {
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// Check that non-sealing can be allowed with a second superinterface being sealed.
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@ExpectedGenericString("public static non-sealed class SealedRootIntf$IntfB$IntfAImpl")
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non-sealed class IntfAImpl implements IntfB, IntfA {}
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}
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}
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