| /* |
| * 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 ClassResolutionTest |
| * @bug 8144874 |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib |
| * @run driver ClassResolutionTest |
| */ |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| import java.lang.ref.WeakReference; |
| import java.lang.reflect.Method; |
| |
| public class ClassResolutionTest { |
| |
| public static class ClassResolutionTestMain { |
| |
| public static class Thing1 { |
| public static int getThingNumber() { |
| return 1; |
| } |
| }; |
| public static class Thing1Handler { |
| public static int getThingNumber() { |
| return Thing1.getThingNumber(); |
| } |
| }; |
| |
| public static void main(String... args) throws Exception { |
| int x = Thing1Handler.getThingNumber(); |
| System.out.println("ThingNumber: "+Integer.toString(x)); |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| |
| // (1) class+resolve should turn on. |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xlog:class+resolve=debug", |
| ClassResolutionTestMain.class.getName()); |
| OutputAnalyzer o = new OutputAnalyzer(pb.start()); |
| o.shouldContain("[class,resolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1"); |
| o.shouldContain("[class,resolve] resolve JVM_CONSTANT_MethodHandle"); |
| |
| // (2) class+resolve should turn off. |
| pb = ProcessTools.createJavaProcessBuilder("-Xlog:class+resolve=debug", |
| "-Xlog:class+resolve=off", |
| ClassResolutionTestMain.class.getName()); |
| o = new OutputAnalyzer(pb.start()); |
| o.shouldNotContain("[class,resolve]"); |
| |
| // (3) TraceClassResolution should turn on. |
| pb = ProcessTools.createJavaProcessBuilder("-XX:+TraceClassResolution", |
| ClassResolutionTestMain.class.getName()); |
| o = new OutputAnalyzer(pb.start()); |
| o.shouldContain("[class,resolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1"); |
| |
| // (4) TraceClassResolution should turn off. |
| pb = ProcessTools.createJavaProcessBuilder("-Xlog:class+resolve=debug", |
| "-XX:-TraceClassResolution", |
| ClassResolutionTestMain.class.getName()); |
| o = new OutputAnalyzer(pb.start()); |
| o.shouldNotContain("[class,resolve]"); |
| |
| }; |
| |
| } |