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8377944: LowMemoryTest2.java#id1 intermittent fails OOME: Metaspace #70

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8377944: LowMemoryTest2.java#id1 intermittent fails OOME: Metaspace #70

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26 changes: 12 additions & 14 deletions test/jdk/java/lang/management/MemoryMXBean/LowMemoryTest2.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright (c) 2004, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2004, 2026, 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 @@ -35,25 +35,23 @@
* @test
* @bug 4982128
* @summary Test low memory detection of non-heap memory pool
*
* @run main/othervm/timeout=600 -Xnoclassgc -XX:MaxMetaspaceSize=32m
* LowMemoryTest2
*/

/*
* @test
* @bug 4982128
* @summary Test low memory detection of non-heap memory pool
*
* @run main/othervm/timeout=600 -Xnoclassgc -XX:MaxMetaspaceSize=16m
* -XX:CompressedClassSpaceSize=4m LowMemoryTest2
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
* -Xnoclassgc -XX:MaxMetaspaceSize=32m LowMemoryTest2
* @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
* -Xnoclassgc -XX:MaxMetaspaceSize=16m
* -XX:CompressedClassSpaceSize=4m LowMemoryTest2
*/

import java.lang.management.*;
import javax.management.*;
import javax.management.openmbean.CompositeData;
import java.util.*;

import jdk.test.whitebox.WhiteBox;

public class LowMemoryTest2 {

private static volatile boolean listenerInvoked = false;
Expand Down Expand Up @@ -177,7 +175,7 @@ public void run() {
// If we don't force a GC we may get an
// OutOfMemoryException before the counters are updated.
System.out.println("Force GC");
System.gc();
WhiteBox.getWhiteBox().fullGC();
}
isThresholdCountSet = isAnyThresholdCountSet(pools);
}
Expand Down