The test failed once in JPRT. The build used is essentially jdk7-b100.

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TEST: java/util/concurrent/Phaser/Basic.java
JDK under test: (C:\temp\jprt\T1\T\072215~1.AB2\TESTPR~1\WINDOW~1.0-P)
java version "1.7.0-201006240722.ab23780.jdk"
Java(TM) SE Runtime Environment (build 1.7.0-201006240722.ab23780.jdk-jprtadm_2010_06_24_00_52-b00)
Java HotSpot(TM) Client VM (build 19.0-b02, mixed mode, sharing)


ACTION: build -- Passed. Build successful
REASON: Named class compiled on demand
TIME: 0.094 seconds
messages:
command: build Basic
reason: Named class compiled on demand
elapsed time (seconds): 0.094

ACTION: compile -- Passed. Compilation successful
REASON: .class file out of date or does not exist
TIME: 0.094 seconds
messages:
command: compile C:\temp\jprt\T1\T\072215.ab23780\source\test\java\util\concurrent\Phaser\Basic.java
reason: .class file out of date or does not exist
elapsed time (seconds): 0.094

ACTION: main -- Failed. Execution failed: `main' threw exception: java.lang.AssertionError: Some tests failed
REASON: Assumed action based on file name: run main Basic
TIME: 20.062 seconds
messages:
command: main Basic
reason: Assumed action based on file name: run main Basic
elapsed time (seconds): 20.062
STDOUT:
Mismatch in thread InterruptibleWaiter:23: java.util.concurrent.TimeoutException, java.lang.InterruptedException

Passed = 503, failed = 1

STDERR:
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1353)
at Basic.fail(Basic.java:396)
at Basic.fail(Basic.java:397)
at Basic.checkResult(Basic.java:75)
at Basic.realMain(Basic.java:261)
at Basic.main(Basic.java:404)
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:613)
at com.sun.javatest.regtest.MainAction$SameVMRunnable.run(MainAction.java:680)
at java.lang.Thread.run(Thread.java:717)
java.lang.AssertionError: Some tests failed
at Basic.main(Basic.java:406)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:613)
at com.sun.javatest.regtest.MainAction$SameVMRunnable.run(MainAction.java:680)
at java.lang.Thread.run(Thread.java:717)

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


TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.AssertionError: Some tests failed
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