test/java/lang/management/MemoryMXBean/CollectionUsageThreshold.java hanging intermittently

TESTFAIL:java/lang/management/MemoryMXBean/CollectionUsageThreshold.java

This test was fixed via 6992968 for a similar issue but it looks like we still have a problem. Here's a hang that was observed on jprt-host-x64-1 with the latest jdk8/tl/jdk (basically jdk8-b00 so close to jdk7-b147).

--------------------------------------------------
TEST: java/lang/management/MemoryMXBean/CollectionUsageThreshold.java
JDK under test: (/tmp/jprt/P2/071909.ab23780/testproduct/solaris_i586_5.10-product)
java version "1.8.0-internal"
Java(TM) SE Runtime Environment (build 1.8.0-internal-201107160719.ab23780.jdk-b00)
Java HotSpot(TM) Client VM (build 21.0-b17, mixed mode, sharing)

ACTION: build -- Passed. Build successful
REASON: User specified action: run build CollectionUsageThreshold MemoryUtil
TIME: 0.277 seconds
messages:
command: build CollectionUsageThreshold MemoryUtil
reason: User specified action: run build CollectionUsageThreshold MemoryUtil
elapsed time (seconds): 0.277

ACTION: compile -- Passed. Compilation successful
REASON: .class file out of date or does not exist
TIME: 0.277 seconds
messages:
command: compile /tmp/jprt/P2/071909.ab23780/source/test/java/lang/management/MemoryMXBean/CollectionUsageThreshold.java /tmp/jprt/P2/071909.ab23780/source/test/java/lang/management/MemoryMXBean/MemoryUtil.java
reason: .class file out of date or does not exist
elapsed time (seconds): 0.277

ACTION: build -- Passed. All files up to date
REASON: Named class compiled on demand
TIME: 0.0 seconds
messages:
command: build CollectionUsageThreshold
reason: Named class compiled on demand
elapsed time (seconds): 0.0

ACTION: main -- Failed. Execution failed: `main' threw exception: java.lang.InterruptedException
REASON: User specified action: run main/timeout=300 CollectionUsageThreshold
TIME: 1200.009 seconds
messages:
command: main CollectionUsageThreshold
reason: User specified action: run main/timeout=300 CollectionUsageThreshold
Timeout signalled after 1,200 seconds
elapsed time (seconds): 1200.009
STDOUT:
Collection usage threshold of Tenured Gen set to 10
Collection usage threshold of Perm Gen set to 10
Calling System.gc()
Notification for Tenured Gen [type = java.management.memory.collection.threshold.exceeded count = 1]
    usage = init = 11206656(10944K) used = 27223440(26585K) committed = 51482624(50276K) max = 178978816(174784K)
notifying the checker thread to check result
Notification for Perm Gen [type = java.management.memory.collection.threshold.exceeded count = 1]
    usage = init = 12582912(12288K) used = 9409144(9188K) committed = 12582912(12288K) max = 67108864(65536K)
notifying the checker thread to check result
Calling System.gc()
notifying main thread to continue - result checking finished
STDERR:
java.lang.InterruptedException
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2017)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2052)
at java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:227)
at java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:355)
at CollectionUsageThreshold.main(CollectionUsageThreshold.java:172)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.sun.javatest.regtest.MainAction$SameVMRunnable.run(MainAction.java:680)
at java.lang.Thread.run(Thread.java:722)

JavaTest Message: Test threw exception: java.lang.InterruptedException
JavaTest Message: shutting down test


TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.InterruptedException
--------------------------------------------------