8373086: Make isexceeded001.java more robust

Reviewed-by: ayang, jsikstro
Backport-of: 4d696d0

Author: SendaoYan

test/hotspot/jtreg/ProblemList.txt

@@ -187,9 +187,3 @@ vmTestbase/nsk/jdwp/ThreadReference/ForceEarlyReturn/forceEarlyReturn001/forceEa
 vmTestbase/nsk/monitoring/ThreadMXBean/ThreadInfo/Multi/Multi005/TestDescription.java 8076494 windows-x64
 
 vmTestbase/nsk/monitoring/ThreadMXBean/findMonitorDeadlockedThreads/find006/TestDescription.java 8310144 macosx-aarch64
-
-vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded001/TestDescription.java 8373022 generic-all
-vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded002/TestDescription.java 8373022 generic-all
-vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded003/TestDescription.java 8373022 generic-all
-vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded004/TestDescription.java 8373022 generic-all
-vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded005/TestDescription.java 8373022 generic-all

test/hotspot/jtreg/vmTestbase/nsk/monitoring/MemoryPoolMBean/isUsageThresholdExceeded/isexceeded001.java

@@ -92,7 +92,8 @@ public static int run(String[] argv, PrintStream out) {
             // but cannot assume this affects the pool we are testing.
             b = new byte[INCREMENT];
 
-            isExceeded = monitor.isUsageThresholdExceeded(pool);
+            // Ensure the observation of isExceeded is sticky to match peakUsage.
+            isExceeded = isExceeded || monitor.isUsageThresholdExceeded(pool);
             log.display("  Allocated heap.  isExceeded = " + isExceeded);
 
             // Fetch usage information: use peak usage in comparisons below, in case usage went up and then down.