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Java example source code file (JcmdScale.java)
The JcmdScale.java Java example source code/* * Copyright (c) 2013, 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 * @key nmt jcmd * @summary Test the NMT scale parameter * @library /testlibrary * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale */ import com.oracle.java.testlibrary.*; public class JcmdScale { public static void main(String args[]) throws Exception { ProcessBuilder pb = new ProcessBuilder(); OutputAnalyzer output; // Grab my own PID String pid = Integer.toString(ProcessTools.getProcessId()); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("KB, committed="); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("MB, committed="); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("GB, committed="); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("Incorrect scale value: apa"); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("GB, committed="); pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"}); output = new OutputAnalyzer(pb.start()); output.shouldContain("Incorrect scale value: apa"); } } Other Java examples (source code examples)Here is a short list of links related to this Java JcmdScale.java source code file: |
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