86 lines
3.3 KiB
Java
86 lines
3.3 KiB
Java
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/*
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* Copyright (c) 2017, 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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/* @test
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* @bug 8193222
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* @summary Check EnsureLocalCapacity doesn't shrink unexpectedly
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* @library /test/lib
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* @run main/othervm/native TestCheckedEnsureLocalCapacity launch
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*/
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class TestCheckedEnsureLocalCapacity {
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static {
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System.loadLibrary("TestCheckedEnsureLocalCapacity");
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}
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// Calls EnsureLocalCapacity(capacity) and then creates "copies" number
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// of LocalRefs to "o".
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// If capacity > copies no warning should ensue (with the bug fixed).
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// If copies > capacity + warning-threshold then we still get a warning.
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private static native void ensureCapacity(Object o, int capacity, int copies);
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private static int[][] testArgs = {
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{ 60, 45 }, // good: capacity > copies
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{ 1, 45 } // bad: copies >> capacity
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};
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private static final String EXCEED_WARNING =
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"^WARNING: JNI local refs: \\d++, exceeds capacity:";
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private static final String WARNING = "^WARNING: ";
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public static void main(String[] args) throws Throwable {
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if (args.length == 2) {
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ensureCapacity(new Object(),
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Integer.parseInt(args[0]),
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Integer.parseInt(args[1]));
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return;
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}
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// No warning
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ProcessTools.executeTestJvm("-Xcheck:jni",
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"TestCheckedEnsureLocalCapacity",
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Integer.toString(testArgs[0][0]),
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Integer.toString(testArgs[0][1])).
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shouldHaveExitValue(0).
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// check no capacity warning
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stdoutShouldNotMatch(EXCEED_WARNING).
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// check no other warning
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stdoutShouldNotMatch(WARNING).
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reportDiagnosticSummary();
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// Warning
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ProcessTools.executeTestJvm("-Xcheck:jni",
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"TestCheckedEnsureLocalCapacity",
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Integer.toString(testArgs[1][0]),
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Integer.toString(testArgs[1][1])).
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shouldHaveExitValue(0).
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// check for capacity warning
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stdoutShouldMatch(EXCEED_WARNING).
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reportDiagnosticSummary();
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}
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}
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