Skip to content

Make the PreciseLeakDetectorIT more stable on Semeru #251

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Make the PreciseLeakDetectorIT more stable on Semeru #251

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 15 additions & 1 deletion src/test/java/testkits/GarbageCreator.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
*/
package testkits;

import java.lang.invoke.VarHandle;
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;
import java.lang.ref.PhantomReference;
Expand Down Expand Up @@ -78,6 +79,19 @@ public static void awaitReferenceProcessing() throws InterruptedException {
}

private static PhantomReference<Object> createLeakedObjectReference(ReferenceQueue<Object> queue) {
return new PhantomReference<>(new Object() /* intentionally leak */, queue);
return createLeakedObjectReference(queue, 10.0, 50.0);
}

private static PhantomReference<Object> createLeakedObjectReference(
ReferenceQueue<Object> queue, double threshold, double current) {
if (threshold > 20.0 * (current + ThreadLocalRandom.current().nextDouble())) {
Object object = new Object();
PhantomReference<Object> reference = new PhantomReference<>(object, queue);
VarHandle.fullFence();
object = null; // intentionally leak
VarHandle.fullFence();
return reference;
}
return createLeakedObjectReference(queue, threshold, current - 1.0);
}
}
Loading