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8338428: Print final VM flags for task #23054

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8338428: Print final VM flags for task #23054

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6af3f1c
updated VMProps
lmesnik Jan 12, 2025
919c870
The test lib is not ued
lmesnik Jan 12, 2025
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34 changes: 33 additions & 1 deletion test/jtreg-ext/requires/VMProps.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 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
Expand Down Expand Up @@ -145,6 +145,7 @@ public Map<String, String> call() {
vmOptFinalFlags(map);

dump(map.map);
dumpFlags();
log("Leaving call()");
return map.map;
}
Expand Down Expand Up @@ -696,6 +697,37 @@ private boolean checkProgramSupport(String logString, String cmd) throws IOExcep
return (exitValue == 0);
}

private void dumpFlags() {
log("dumpFlags() entering:");
try {
String testJdk = System.getProperty("test.jdk");
String toolName = "java" + (Platform.isWindows() ? ".exe" : "");
Path javaPath = Paths.get(testJdk, "bin", toolName);

String options = System.getProperty("test.vm.opts", "")
+ System.getProperty("test.java.opts", "");
ArrayList<String> args = new ArrayList<>();
args.add(javaPath.toAbsolutePath().toString());
Collections.addAll(args, options.trim().split("\\s+"));
args.add("-XX:+PrintFlagsFinal");
args.add("-version");
ProcessBuilder pb = new ProcessBuilder(args);
File output = new File("jvm.flags.final.log");
pb.redirectOutput(output);
pb.redirectErrorStream();
Process p = pb.start();
p.waitFor(120, TimeUnit.SECONDS);

log("The test jvm options: " + options);
log("The final jvm flags are saved to: " + output.getAbsolutePath());
} catch (Throwable t) {
log("Erro while printing JVM flags " + t.getMessage());
}

log("dumpFlags() leaving:");
}


/**
* Checks musl libc.
*
Expand Down