This test has been failing on Windows with 7u6 and 8 in the last few days, here's an exmaple:

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TEST: java/lang/ProcessBuilder/Basic.java
JDK under test: (C:\jprt\T\P1\103020~1.LJA\TESTPR~1\WINDOW~1.2-P)
openjdk version "1.8.0-internal"
OpenJDK Runtime Environment (build 1.8.0-internal-201206061030.ljanders.jdk-b00)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b12, mixed mode)


ACTION: build -- Passed. Build successful
REASON: Named class compiled on demand
TIME: 0.313 seconds
messages:
command: build Basic
reason: Named class compiled on demand
elapsed time (seconds): 0.313

ACTION: compile -- Passed. Compilation successful
REASON: .class file out of date or does not exist
TIME: 0.313 seconds
messages:
command: compile C:\jprt\T\P1\103020.ljanders\s\test\java\lang\ProcessBuilder\Basic.java
reason: .class file out of date or does not exist
elapsed time (seconds): 0.313

ACTION: main -- Failed. Execution failed: `main' threw exception: java.lang.AssertionError: Some tests failed
REASON: User specified action: run main/othervm/timeout=300 Basic
TIME: 10.859 seconds
messages:
command: main Basic
reason: User specified action: run main/othervm/timeout=300 Basic
elapsed time (seconds): 10.859
STDOUT:
This appears to be a Windows system.
This appears to be a Unicode-based OS.
Testing ASCII environment values
Testing Latin1 environment values
BAAR not equal to null
BAAR not equal to null
BAAR not equal to null
BAAR not equal to null
Testing directory .
Testing directory ..
Testing directory \
Testing directory C:
Testing directory c:
Testing directory C:\
Testing directory c:\
Testing directory \
Testing directory c:\windows
Testing directory c:\Program Files
Testing directory c:\Program Files
Testing Unicode directory:.\ProcessBuilderDir??
Running case insensitve variable tests
SystemRoot=C:\WINDOWS,=ExitValue=3,=C:=\, not equal to =C:=\,SystemRoot=C:\WINDOWS,=ExitValue=3,
=ExitValue=3,=C:=\,SystemRoot=C:\WINDOWS, not equal to =C:=\,SystemRoot=C:\WINDOWS,=ExitValue=3,
cmdp
cmdp 0: C:\jprt\T\P1\103020~1.LJA\TESTPR~1\WINDOW~1.2-P\jre\bin\java
cmdp 1: -classpath
cmdp 2: C:\jprt\products\P1\jtreg4.1-latest\jtreg\lib\javatest.jar;C:\jprt\products\P1\jtreg4.1-latest\jtreg\lib\jtreg.jar;C:\jprt\T\P1\103020.ljanders\s\build\windows-amd64\testoutput\jdk_lang\JTwork\classes\java\lang\ProcessBuilder;C:\jprt\T\P1\103020.ljanders\s\test\java\lang\ProcessBuilder;C:\jprt\T\P1\103020~1.LJA\TESTPR~1\WINDOW~1.2-P\lib\tools.jar
cmdp 3: Basic$JavaChild
cmdp 4: System.getenv()
envp
envp 0: SystemRoot=C:\WINDOWS
envp 1: LC_ALL=C¿¿
envp 2: FO¿=B¿R
Incorrect handling of envstrings containing NULs

Passed = 9168, failed = 7

STDERR:
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.testVariableDeleter(Basic.java:222)
at Basic.realMain(Basic.java:1345)
at Basic.main(Basic.java:2246)
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:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.testVariableDeleter(Basic.java:223)
at Basic.realMain(Basic.java:1345)
at Basic.main(Basic.java:2246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.testVariableDeleter(Basic.java:222)
at Basic.realMain(Basic.java:1358)
at Basic.main(Basic.java:2246)
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:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.testVariableDeleter(Basic.java:223)
at Basic.realMain(Basic.java:1358)
at Basic.main(Basic.java:2246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.realMain(Basic.java:1641)
at Basic.main(Basic.java:2246)
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:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.equal(Basic.java:2243)
at Basic.realMain(Basic.java:1648)
at Basic.main(Basic.java:2246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1345)
at Basic.fail(Basic.java:2236)
at Basic.fail(Basic.java:2237)
at Basic.check(Basic.java:2240)
at Basic.realMain(Basic.java:1692)
at Basic.main(Basic.java:2246)
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:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)
java.lang.AssertionError: Some tests failed
at Basic.main(Basic.java:2248)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:474)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:722)

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

STATUS:Failed.`main' threw exception: java.lang.AssertionError: Some tests failed

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