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