| /* |
| * 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 TestVerifyBeforeAndAfterGCFlags |
| * @key gc |
| * @bug 8000831 |
| * @summary Runs an simple application (GarbageProducer) with various |
| combinations of -XX:{+|-}Verify{After|Before}GC flags and checks that |
| output contain or doesn't contain expected patterns |
| * @modules java.base/jdk.internal.misc |
| * @modules java.management |
| * @library /test/lib |
| * @run driver TestVerifyBeforeAndAfterGCFlags |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| |
| import jdk.test.lib.Utils; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| public class TestVerifyBeforeAndAfterGCFlags { |
| |
| // VerifyBeforeGC:[Verifying threads heap tenured eden syms strs zone dict metaspace chunks hand code cache ] |
| public static final String VERIFY_BEFORE_GC_PATTERN = "Verifying Before GC"; |
| // VerifyBeforeGC: VerifyBeforeGC: VerifyBeforeGC: |
| public static final String VERIFY_BEFORE_GC_CORRUPTED_PATTERN = "VerifyBeforeGC:(?!\\[Verifying[^]]+\\])"; |
| |
| // VerifyAfterGC:[Verifying threads heap tenured eden syms strs zone dict metaspace chunks hand code cache ] |
| public static final String VERIFY_AFTER_GC_PATTERN = "Verifying After GC"; |
| // VerifyAfterGC: VerifyAfterGC: VerifyAfterGC: |
| public static final String VERIFY_AFTER_GC_CORRUPTED_PATTERN = "VerifyAfterGC:(?!\\[Verifying[^]]+\\])"; |
| |
| public static void main(String args[]) throws Exception { |
| String[] filteredOpts = Utils.getFilteredTestJavaOpts( |
| new String[] { "-Xlog:gc+verify=debug", |
| "-XX:+UseGCLogFileRotation", |
| "-XX:-DisplayVMOutput", |
| "VerifyBeforeGC", |
| "VerifyAfterGC" }); |
| testVerifyFlags(false, false, filteredOpts); |
| testVerifyFlags(true, true, filteredOpts); |
| testVerifyFlags(true, false, filteredOpts); |
| testVerifyFlags(false, true, filteredOpts); |
| } |
| |
| public static void testVerifyFlags(boolean verifyBeforeGC, |
| boolean verifyAfterGC, |
| String[] opts) throws Exception { |
| ArrayList<String> vmOpts = new ArrayList<>(); |
| if (opts != null && (opts.length > 0)) { |
| Collections.addAll(vmOpts, opts); |
| } |
| |
| Collections.addAll(vmOpts, new String[] { |
| "-Xlog:gc+verify=debug", |
| "-Xmx5m", |
| "-Xms5m", |
| "-Xmn3m", |
| "-XX:+UnlockDiagnosticVMOptions", |
| (verifyBeforeGC ? "-XX:+VerifyBeforeGC" |
| : "-XX:-VerifyBeforeGC"), |
| (verifyAfterGC ? "-XX:+VerifyAfterGC" |
| : "-XX:-VerifyAfterGC"), |
| GarbageProducer.class.getName() }); |
| ProcessBuilder procBuilder = |
| ProcessTools.createJavaProcessBuilder(vmOpts.toArray( |
| new String[vmOpts.size()])); |
| OutputAnalyzer analyzer = new OutputAnalyzer(procBuilder.start()); |
| |
| analyzer.shouldHaveExitValue(0); |
| analyzer.shouldNotMatch(VERIFY_BEFORE_GC_CORRUPTED_PATTERN); |
| analyzer.shouldNotMatch(VERIFY_AFTER_GC_CORRUPTED_PATTERN); |
| |
| if (verifyBeforeGC) { |
| analyzer.shouldMatch(VERIFY_BEFORE_GC_PATTERN); |
| } else { |
| analyzer.shouldNotMatch(VERIFY_BEFORE_GC_PATTERN); |
| } |
| |
| if (verifyAfterGC) { |
| analyzer.shouldMatch(VERIFY_AFTER_GC_PATTERN); |
| } else { |
| analyzer.shouldNotMatch(VERIFY_AFTER_GC_PATTERN); |
| } |
| } |
| |
| public static class GarbageProducer { |
| static long[][] garbage = new long[10][]; |
| |
| public static void main(String args[]) { |
| int j = 0; |
| for(int i = 0; i<1000; i++) { |
| garbage[j] = new long[10000]; |
| j = (j+1)%garbage.length; |
| } |
| } |
| } |
| } |