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/*
* Copyright (c) 2013, 2025, 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
* @key randomness
* @bug 8026949 8164091
* @summary Test ensures correct VM output during startup
* @library /test/lib
* @requires vm.flagless
* @modules java.base/jdk.internal.misc
* java.management
*
* @run driver compiler.startup.StartupOutput
*/
package compiler.startup;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.Utils;
import java.util.Random;
public class StartupOutput {
public static void main(String[] args) throws Exception {
ProcessBuilder pb;
OutputAnalyzer out;
Random rand = Utils.getRandomInstance();
pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xint", "-XX:+DisplayVMOutputToStdout", "-version");
out = new OutputAnalyzer(pb.start());
out.shouldNotContain("no space to run compilers");
out.shouldHaveExitValue(0);
pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xint", "-XX:ReservedCodeCacheSize=1770K", "-XX:InitialCodeCacheSize=4K", "-version");
out = new OutputAnalyzer(pb.start());
// The VM should not crash but may return an error message because we don't have enough space for adapters
int exitCode = out.getExitValue();
if (exitCode != 1 && exitCode != 0) {
throw new Exception("VM crashed with exit code " + exitCode);
}
for (int i = 0; i < 200; i++) {
int initialCodeCacheSizeInKb = 800 + rand.nextInt(400);
int reservedCodeCacheSizeInKb = initialCodeCacheSizeInKb + rand.nextInt(200);
pb = ProcessTools.createLimitedTestJavaProcessBuilder("-XX:InitialCodeCacheSize=" + initialCodeCacheSizeInKb + "K", "-XX:ReservedCodeCacheSize=" + reservedCodeCacheSizeInKb + "k", "-version");
out = new OutputAnalyzer(pb.start());
exitCode = out.getExitValue();
if (exitCode != 1 && exitCode != 0) {
throw new Exception("VM crashed with exit code " + exitCode);
}
// The VM should not crash but will probably fail with a "CodeCache is full. Compiler has been disabled." message
out.stdoutShouldNotContain("# A fatal error");
}
}
}
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