russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
69 lines
2.8 KiB
Java
69 lines
2.8 KiB
Java
/*
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* Copyright (c) 2025, IBM Corporation.
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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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* @bug 8372802
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* @summary Test that +PrintFlagsFinal print the same options when +UnlockExperimentalVMOptions and
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* +UnlockDiagnosticVMOptions are set than when they aren't.
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* @requires vm.flagless
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* @library /test/lib
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* @run driver PrintAllFlags
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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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import java.io.IOException;
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import java.util.Set;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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public class PrintAllFlags {
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private static final Pattern optPattern = Pattern.compile("\\s*\\w+\\s\\w+\\s+=");
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public static void main(String args[]) throws Exception {
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var flagsFinal = runAndMakeVMOptionSet("-XX:+PrintFlagsFinal", "-version");
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var flagsFinalUnlocked = runAndMakeVMOptionSet(
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"-XX:+UnlockExperimentalVMOptions", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintFlagsFinal", "-version");
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if (!flagsFinal.equals(flagsFinalUnlocked)) {
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throw new RuntimeException("+PrintFlagsFinal should produce the same output" +
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" whether or not UnlockExperimentalVMOptions and UnlockDiagnosticVMOptions are set");
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}
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}
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private static Set<String> runAndMakeVMOptionSet(String... args) throws IOException {
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var output = new OutputAnalyzer(ProcessTools.createLimitedTestJavaProcessBuilder(args).start());
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Set<String> optNameSet = output.asLines().stream()
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.map(optPattern::matcher)
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.filter(Matcher::find)
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.map(Matcher::group)
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.collect(Collectors.toSet());
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if (optNameSet.isEmpty()) {
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throw new RuntimeException("Sanity test failed: no match for option pattern in process output");
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}
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return optNameSet;
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}
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}
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