/* * Copyright (c) 2015, 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 * @library /testlibrary * @build jdk.test.lib.OutputAnalyzer jdk.test.lib.ProcessTools * @run driver ClassResolutionTest */ import jdk.test.lib.OutputAnalyzer; import jdk.test.lib.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 { Thing1Handler.getThingNumber(); } } // Each ProcessBuilder should disable CDS with -Xshare:off so that no steps // that produce necessary logging are skipped. public static void main(String... args) throws Exception { // (1) classresolve should turn on. ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( "-Xlog:classresolve=info", "-Xshare:off", ClassResolutionTestMain.class.getName()); OutputAnalyzer o = new OutputAnalyzer(pb.start()); o.shouldContain("[classresolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1"); // (2) classresolve should turn off. pb = ProcessTools.createJavaProcessBuilder( "-Xlog", "-Xlog:classresolve=off", "-Xshare:off", ClassResolutionTestMain.class.getName()); o = new OutputAnalyzer(pb.start()); o.shouldNotContain("[classresolve]"); // (3) TraceClassResolution should turn on. pb = ProcessTools.createJavaProcessBuilder( "-XX:+TraceClassResolution", "-Xshare:off", ClassResolutionTestMain.class.getName()); o = new OutputAnalyzer(pb.start()); o.shouldContain("[classresolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1"); // (4) TraceClassResolution should turn off. pb = ProcessTools.createJavaProcessBuilder( "-Xlog", "-XX:-TraceClassResolution", "-Xshare:off", ClassResolutionTestMain.class.getName()); o = new OutputAnalyzer(pb.start()); o.shouldNotContain("[classresolve]"); }; }