76 lines
2.8 KiB
Java
76 lines
2.8 KiB
Java
/*
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* Copyright (c) 2015, 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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import java.util.ArrayList;
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import java.util.List;
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import jdk.test.lib.Platform;
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import jdk.test.lib.ProcessTools;
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import jdk.test.lib.OutputAnalyzer;
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import jdk.test.lib.Utils;
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import jdk.test.lib.apps.LingeredApp;
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/*
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* @test
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* @library /../../test/lib/share/classes
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* @library /testlibrary
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* @build jdk.test.lib.*
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* @build jdk.test.lib.apps.*
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* @run main TestClassLoaderStats
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*/
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public class TestClassLoaderStats {
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public static void main(String[] args) throws Exception {
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if (!Platform.shouldSAAttach()) {
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System.out.println("SA attach not expected to work - test skipped.");
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return;
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}
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LingeredApp app = null;
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try {
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List<String> vmArgs = new ArrayList<String>();
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vmArgs.add("-XX:+UsePerfData");
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vmArgs.addAll(Utils.getVmOptions());
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app = LingeredApp.startApp(vmArgs);
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System.out.println("Attaching sun.jvm.hotspot.tools.ClassLoaderStats to " + app.getPid());
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ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(
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"-XX:+UsePerfData",
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"sun.jvm.hotspot.tools.ClassLoaderStats",
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Long.toString(app.getPid()));
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OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
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System.out.println(output.getOutput());
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output.shouldHaveExitValue(0);
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output.shouldContain("Debugger attached successfully.");
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// The class loader stats header needs to be presented in the output:
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output.shouldMatch("class_loader\\W+classes\\W+bytes\\W+parent_loader\\W+alive?\\W+type");
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output.stderrShouldNotMatch("[E|e]xception");
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output.stderrShouldNotMatch("[E|e]rror");
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} finally {
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LingeredApp.stopApp(app);
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}
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}
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}
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