88 lines
3.9 KiB
Java
88 lines
3.9 KiB
Java
/*
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* Copyright (c) 2015, 2023, 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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/*
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* @test
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* @summary Verify jcmd error message for out-of-range value and for
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* value which is not allowed by constraint. Also check that
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* jcmd does not print an error message to the target process output.
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* @requires vm.flagless
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* jdk.management
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* @run driver TestJcmdOutput
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*/
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import jdk.test.lib.Asserts;
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import jdk.test.lib.management.DynamicVMOption;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.dcmd.PidJcmdExecutor;
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public class TestJcmdOutput {
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/* Message printed by jcmd for value which is out-of-range */
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static final String JCMD_OUT_OF_RANGE_MESSAGE = "error: must have value in range";
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/* Message printed by jcmd for value which is not allowed by constraint */
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static final String JCMD_CONSTRAINT_MESSAGE = "value violates its flag's constraint";
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public static void main(String[] args) throws Exception {
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OutputAnalyzer output;
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System.out.println("Verify jcmd error message and that jcmd does not write errors to the target process output");
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output = new OutputAnalyzer((ProcessTools.createLimitedTestJavaProcessBuilder(
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"-Dtest.jdk=" + System.getProperty("test.jdk"),
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"-XX:MinHeapFreeRatio=20", "-XX:MaxHeapFreeRatio=80", runJcmd.class.getName())).start());
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output.shouldHaveExitValue(0);
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/* Verify that jcmd not print error message to the target process output */
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output.shouldNotContain(JCMD_OUT_OF_RANGE_MESSAGE);
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output.shouldNotContain(JCMD_CONSTRAINT_MESSAGE);
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}
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public static class runJcmd {
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public static void main(String[] args) throws Exception {
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int minHeapFreeRatio = Integer.valueOf((new DynamicVMOption("MinHeapFreeRatio")).getValue());
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int maxHeapFreeRatio = Integer.valueOf((new DynamicVMOption("MaxHeapFreeRatio")).getValue());
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PidJcmdExecutor executor = new PidJcmdExecutor();
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Asserts.assertGT(minHeapFreeRatio, 0, "MinHeapFreeRatio must be greater than 0");
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Asserts.assertLT(maxHeapFreeRatio, 100, "MaxHeapFreeRatio must be less than 100");
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/* Check out-of-range values */
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executor.execute("VM.set_flag MinHeapFreeRatio -1", true).shouldContain(JCMD_OUT_OF_RANGE_MESSAGE);
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executor.execute("VM.set_flag MaxHeapFreeRatio 101", true).shouldContain(JCMD_OUT_OF_RANGE_MESSAGE);
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/* Check values which not allowed by constraint */
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executor.execute(
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String.format("VM.set_flag MinHeapFreeRatio %d", maxHeapFreeRatio + 1), true)
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.shouldContain(JCMD_CONSTRAINT_MESSAGE);
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executor.execute(
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String.format("VM.set_flag MaxHeapFreeRatio %d", minHeapFreeRatio - 1), true)
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.shouldContain(JCMD_CONSTRAINT_MESSAGE);
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}
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}
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}
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