diff options
Diffstat (limited to 'test/java/lang')
4 files changed, 276 insertions, 0 deletions
diff --git a/test/java/lang/ClassLoader/forNameLeak/ClassForName.java b/test/java/lang/ClassLoader/forNameLeak/ClassForName.java new file mode 100644 index 0000000000..584728800f --- /dev/null +++ b/test/java/lang/ClassLoader/forNameLeak/ClassForName.java @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2016, 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.URLClassLoader; + +/* + * This class is loaded by the custom URLClassLoader, and then calls + * Class.forName(); + */ +public class ClassForName implements Runnable { + static { + if (!(ClassForName.class.getClassLoader() instanceof URLClassLoader)) { + throw new RuntimeException("Supposed to be loaded by URLClassLoader"); + } + } + + public void run() { + try { + Class.forName(java.util.List.class.getName(), false, + ClassLoader.getSystemClassLoader()); + } catch (Throwable e) { + e.printStackTrace(); + } + } +} diff --git a/test/java/lang/ClassLoader/forNameLeak/ClassForNameLeak.java b/test/java/lang/ClassLoader/forNameLeak/ClassForNameLeak.java new file mode 100644 index 0000000000..d243103bd4 --- /dev/null +++ b/test/java/lang/ClassLoader/forNameLeak/ClassForNameLeak.java @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2016, 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 + * @bug 8151486 + * @summary Call Class.forName() on the system classloader from a class loaded + * from a custom classloader. + * @library /lib/testlibrary + * @build jdk.testlibrary.Utils jdk.testlibrary.JarUtils + * @build ClassForName ClassForNameLeak + * @run main/othervm/policy=test.policy -Djava.security.manager ClassForNameLeak + */ + +import java.lang.ref.PhantomReference; +import java.lang.ref.Reference; +import java.lang.ref.ReferenceQueue; +import java.net.URL; +import java.net.URLClassLoader; +import java.nio.file.FileSystems; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.List; +import java.util.concurrent.Callable; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.Future; +import java.util.stream.Collectors; +import java.util.stream.Stream; +import jdk.testlibrary.Utils; +import jdk.testlibrary.JarUtils; + +/* + * Create .jar, load ClassForName from .jar using a URLClassLoader + */ +public class ClassForNameLeak { + private static final long TIMEOUT = (long)(5000.0 * Utils.TIMEOUT_FACTOR); + private static final String TESTCLASSES = System.getProperty("test.classes", "."); + private static final String CLASSFILENAME = "ClassForName.class"; + private static final int THREADS = 10; + private static final ReferenceQueue<ClassLoader> rq = new ReferenceQueue<>(); + + // Use a new classloader to load the ClassForName class, then run its + // Runnable. + public static PhantomReference<ClassLoader> loadAndRun(Path jarFilePath) + throws Exception { + ClassLoader classLoader = new URLClassLoader( + new URL[]{jarFilePath.toUri().toURL()}) { + @Override public String toString() { return "LeakedClassLoader"; } + }; + + Class<?> loadClass = Class.forName("ClassForName", true, classLoader); + ((Runnable) loadClass.newInstance()).run(); + + PhantomReference<ClassLoader> ref = new PhantomReference<>(classLoader, rq); + System.out.println("returning phantom ref: " + ref + " to " + classLoader); + return ref; + } + + public static void main(final String[] args) throws Exception { + Path classFile = FileSystems.getDefault().getPath(TESTCLASSES, + CLASSFILENAME); + + // Create a temporary .jar file containing ClassForName.class + Path testClassesDir = Paths.get(TESTCLASSES); + Path jarFilePath = Files.createTempFile("cfn", ".jar"); + JarUtils.createJarFile(jarFilePath, testClassesDir, classFile); + jarFilePath.toFile().deleteOnExit(); + + // Remove the ClassForName.class file that jtreg built, to make sure + // we're loading from the tmp .jar + Files.delete(classFile); + + // Make simultaneous calls to the test method, to stress things a bit + ExecutorService es = Executors.newFixedThreadPool(THREADS); + + List<Callable<PhantomReference<ClassLoader>>> callables = + Stream.generate(() -> { + Callable<PhantomReference<ClassLoader>> cprcl = () -> { + return loadAndRun(jarFilePath); + }; + return cprcl; + }).limit(THREADS).collect(Collectors.toList()); + + List<Future<PhantomReference<ClassLoader>>> refs = es.invokeAll(callables); + + // Give the GC a chance to enqueue the PhantomReferences + for (int i = 0; i < 10; i++) { + System.gc(); + } + // Make sure all PhantomReferences to the leaked classloader are enqueued + for (int j = 0; j < THREADS; j++) { + Reference rmRef = rq.remove(TIMEOUT); + if (rmRef == null) { + throw new RuntimeException("ClassLoader was never enqueued!"); + } else { + System.out.println("Enqueued " + rmRef); + } + } + System.out.println("All Classloaders successfully enqued"); + } +} diff --git a/test/java/lang/ClassLoader/forNameLeak/test.policy b/test/java/lang/ClassLoader/forNameLeak/test.policy new file mode 100644 index 0000000000..46145b9fa4 --- /dev/null +++ b/test/java/lang/ClassLoader/forNameLeak/test.policy @@ -0,0 +1,6 @@ +grant { + permission java.io.FilePermission "<<ALL FILES>>", "read, write, delete"; + permission java.lang.RuntimePermission "createClassLoader"; + permission java.lang.RuntimePermission "getClassLoader"; + permission java.util.PropertyPermission "*", "read"; /* for Utils */ +}; diff --git a/test/java/lang/invoke/MethodHandlesProxiesTest.java b/test/java/lang/invoke/MethodHandlesProxiesTest.java new file mode 100644 index 0000000000..3236705a6b --- /dev/null +++ b/test/java/lang/invoke/MethodHandlesProxiesTest.java @@ -0,0 +1,102 @@ +/* + * Copyright (c) 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 + * @bug 8206955 + * @run testng/othervm -ea -esa test.java.lang.invoke.MethodHandlesProxiesTest + */ + +package test.java.lang.invoke; + +import org.testng.annotations.Test; + +import java.lang.invoke.MethodHandle; +import java.lang.invoke.MethodHandleProxies; +import java.lang.invoke.MethodHandles; + +import static org.testng.Assert.assertEquals; + +public class MethodHandlesProxiesTest { + + public interface A { + default String a() { + return "A"; + } + } + + public interface B { + default String b() { + return "B"; + } + } + + public interface C extends A, B { + String f(); + + default String c() { + return "C"; + } + + default String concat() { + return a() + b() + c(); + } + } + + public interface Override extends C { + String f(); + + default String a() { + return "OA"; + } + + default String b() { + return "OB"; + } + + default String c() { + return "OC"; + } + } + + @Test + public static void testDefaultMethods() throws Throwable { + MethodHandle target = MethodHandles.constant(String.class, "F"); + C proxy = MethodHandleProxies.asInterfaceInstance(C.class, target); + + assertEquals(proxy.f(), "F"); + assertEquals(proxy.a(), "A"); + assertEquals(proxy.b(), "B"); + assertEquals(proxy.c(), "C"); + assertEquals(proxy.concat(), "ABC"); + } + + @Test + public static void testOverriddenDefaultMethods() throws Throwable { + MethodHandle target = MethodHandles.constant(String.class, "F"); + Override proxy = MethodHandleProxies.asInterfaceInstance(Override.class, target); + + assertEquals(proxy.a(), "OA"); + assertEquals(proxy.b(), "OB"); + assertEquals(proxy.c(), "OC"); + } +} |