Javac times out on Windows while compiling the classes for java/lang/invoke/LFCaching/LFMultiThreadCachingTest.java.

There is not much information in the report so it could very well be that this is an intermittent or infrastructure problem.

#section:compile
----------messages:(6/344)*----------
command: compile -XDignore.symbol.file=true C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching\\LFCachingTestCase.java
reason: .class file out of date or does not exist
Timeout information:
Could not find process id for the process that timed out.
Skipping timeout handling.
elapsed time (seconds): 1919.91
----------rerun:(26/3430)*----------
JTREG_EFH_HOME=C:/local/aurora/CommonData/JTREG_EFH_HOME \\
JTREG_EFH_HOME_arl=aurora://sca/jtregEFH \\
JTREG_HOME=C:/local/aurora/CommonData/JTREG_HOME \\
JTREG_HOME_arl=aurora://sca/vmsqe/tool/jtreg/execution \\
JTREG_NATIVEPATH=C:/local/aurora/CommonData/JTREG_NATIVEPATH \\
JTREG_NATIVEPATH_arl=aurora://sca/vmsqe/jdk/nightly//fastdebug/comp_baseline/windows-i586-tests \\
PATH='C:\\Cygwin\\bin;C:\\Cygwin\\bin;C:\\Cygwin\\usr\\local\\bin;C:\\Cygwin\\sbin;C:\\Cygwin\\usr\\sbin;C:\\Cygwin\\bin;C:\\Cygwin\\bin;C:\\Cygwin\\usr\\local\\bin;C:\\Cygwin\\sbin;C:\\Cygwin\\usr\\sbin;C:\\Cygwin\\bin;C:\\Cygwin\\bin;C:\\Cygwin\\usr\\local\\bin;C:\\Cygwin\\sbin;C:\\Cygwin\\usr\\sbin;C:\\Cygwin\\usr\\local\\bin;C:\\Cygwin\\bin;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0' \\
SystemDrive=C: \\
SystemRoot='C:\\Windows' \\
TEMP='C:\\Cygwin\\tmp' \\
TMP='C:\\Cygwin\\tmp' \\
windir='C:\\Windows' \\
    'C:\\local\\aurora\\CommonData\\JDK_DIR\\bin\\javac' \\
        -J-Dtest.src='C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching' \\
        -J-Dtest.src.path='C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching;C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\lib\\testlibrary\\jsr292;C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\lib\\testlibrary' \\
        -J-Dtest.classes='C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\java\\lang\\invoke\\LFCaching' \\
        -J-Dtest.class.path='C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\java\\lang\\invoke\\LFCaching;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\lib\\testlibrary\\jsr292;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\lib\\testlibrary' \\
        -J-Dtest.vm.opts= \\
        -J-Dtest.tool.vm.opts= \\
        -J-Dtest.compiler.opts= \\
        -J-Dtest.java.opts='-Xcomp -server -XX:MaxRAMFraction=8 -XX:+CreateCoredumpOnCrash -ea -esa -XX:+TieredCompilation -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+AggressiveOpts -XX:-UseBiasedLocking' \\
        -J-Dtest.jdk='C:\\local\\aurora\\CommonData\\JDK_DIR' \\
        -J-Dcompile.jdk='C:\\local\\aurora\\CommonData\\JDK_DIR' \\
        -J-Dtest.timeout.factor=16.0 \\
        -J-Dtest.nativepath='C:\\local\\aurora\\CommonData\\JTREG_NATIVEPATH\\hotspot\\jtreg\\native' \\
        -d 'C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\java\\lang\\invoke\\LFCaching' -classpath 'C:\\local\\aurora\\CommonData\\JTREG_HOME\\lib\\javatest.jar;C:\\local\\aurora\\CommonData\\JTREG_HOME\\lib\\jtreg.jar;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\java\\lang\\invoke\\LFCaching;C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\lib\\testlibrary\\jsr292;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\15\\lib\\testlibrary' -sourcepath 'C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching;C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\lib\\testlibrary\\jsr292;C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\lib\\testlibrary' -XDignore.symbol.file=true 'C:\\local\\aurora\\CommonData\\TESTBASE\\jdk\\test\\java\\lang\\invoke\\LFCaching\\LFCachingTestCase.java'
----------System.out:(1/39)----------
Timeout signalled after 1,920 seconds
----------System.err:(0/0)----------
result: Error. Program `C:\local\aurora\CommonData\JDK_DIR\bin\javac' timed out!