| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2018, SAP SE. 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.lang.reflect.Constructor; |
| import java.lang.reflect.Method; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import jdk.test.lib.dcmd.CommandExecutor; |
| import jdk.test.lib.dcmd.JMXExecutor; |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| /* |
| * @test |
| * @summary Test that various diagnostic commands which can show core reflection |
| * invocation targets do so correctly (See: JDK-8203343). |
| * @library /test/lib |
| * @run testng/othervm -Dsun.reflect.noInflation=true ShowReflectionTargetTest |
| * @author stuefe |
| */ |
| |
| public class ShowReflectionTargetTest { |
| |
| @SuppressWarnings("unused") |
| private static class Dummy { |
| int _i; |
| public Dummy(int i) { _i = i; } |
| public int get_i() { return _i; } |
| } |
| |
| public void run(CommandExecutor executor) throws Exception { |
| // Do some reflection; since we set -Dsun.reflect.noInflation=true, this should |
| // immediately generate Generated{Method|Constructor}Accessor objects. |
| Class<?> c = Class.forName("ShowReflectionTargetTest$Dummy"); |
| Constructor<?> ctor = c.getConstructor(int.class); |
| Method m = c.getMethod("get_i"); |
| |
| Object o = ctor.newInstance(17); |
| int j = ((Integer)m.invoke(o)).intValue(); |
| Assert.assertEquals(j, 17); |
| |
| // Now invoke VM.class_hierarchy and check its output. |
| // Should show reflection targets, e.g.: |
| // .... |
| // |--jdk.internal.reflect.MagicAccessorImpl/null |
| // | |--jdk.internal.reflect.FieldAccessorImpl/null |
| // | | |--jdk.internal.reflect.UnsafeFieldAccessorImpl/null |
| // | | | |--jdk.internal.reflect.UnsafeStaticFieldAccessorImpl/null |
| // | | | | |--jdk.internal.reflect.UnsafeQualifiedStaticFieldAccessorImpl/null |
| // | | | | | |--jdk.internal.reflect.UnsafeQualifiedStaticObjectFieldAccessorImpl/null |
| // | |--jdk.internal.reflect.ConstructorAccessorImpl/null |
| // | | |--jdk.internal.reflect.DelegatingConstructorAccessorImpl/null |
| // | | |--jdk.internal.reflect.NativeConstructorAccessorImpl/null |
| // > | | |--jdk.internal.reflect.GeneratedConstructorAccessor1/0x00007f75f04889b0 (invokes: java/lang/management/ManagementPermission::<init> (Ljava/lang/String;)V) |
| // > | | |--jdk.internal.reflect.GeneratedConstructorAccessor2/0x00007f75f0494990 (invokes: ShowReflectionTargetTest$Dummy::<init> (I)V) |
| // | | |--jdk.internal.reflect.BootstrapConstructorAccessorImpl/null |
| // | |--jdk.internal.reflect.MethodAccessorImpl/null |
| // > | | |--jdk.internal.reflect.GeneratedMethodAccessor1/0x00007f75f0494450 (invokes: ShowReflectionTargetTest$Dummy::get_i ()I) |
| // | | |--jdk.internal.reflect.DelegatingMethodAccessorImpl/null |
| // ... |
| |
| OutputAnalyzer output = executor.execute("VM.class_hierarchy"); |
| |
| output.shouldMatch(".*jdk.internal.reflect.GeneratedConstructorAccessor.*invokes.*ShowReflectionTargetTest\\$Dummy::<init>.*"); |
| output.shouldMatch(".*jdk.internal.reflect.GeneratedMethodAccessor.*invokes.*ShowReflectionTargetTest\\$Dummy::get_i.*"); |
| |
| } |
| |
| @Test |
| public void jmx() throws Exception { |
| run(new JMXExecutor()); |
| } |
| |
| } |
| |
| |
| |