This happened in 8u40 resman nightly. It is an intermittent failure.

Please refer the following part of test output. The test has been specified "@run shell/timeout=600", but still failed with timeout.

----------System.out:(1/48)----------
COMPILEJAVA=/export/local/aurora/CommonData/jdk
----------System.err:(3/207)----------
java version "1.8.0_40-ea-fastdebug"
Java(TM) SE Runtime Environment (build 1.8.0_40-ea-fastdebug-hs-dev-nightly-h2324-20141211-b19)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b23-fastdebug, mixed mode)
----------rerun:(18/823)*----------
JTREG_COF=false \\
JTREG_HOME=/export/local/aurora/CommonData/jtreg_dir \\
LANG=C \\
PATH=/bin:/usr/bin \\
TZ=US/Pacific \\
TESTSRC=/export/local/aurora/CommonData/j2se_jdk/jdk/test/java/lang/instrument \\
TESTSRCPATH=/export/local/aurora/CommonData/j2se_jdk/jdk/test/java/lang/instrument \\
TESTCLASSES=/export/local/aurora/sandbox/results/workDir/classes/3/java/lang/instrument \\
TESTCLASSPATH=/export/local/aurora/sandbox/results/workDir/classes/3/java/lang/instrument \\
COMPILEJAVA=/export/local/aurora/CommonData/jdk \\
TESTJAVA=/export/local/aurora/CommonData/jdk \\
TESTVMOPTS=-d64 \\
TESTTOOLVMOPTS=-J-d64 \\
TESTJAVACOPTS= \\
'TESTJAVAOPTS=-Xmixed -d64 -server -XX:+UseG1GC' \\
TESTTIMEOUTFACTOR=3.0 \\
    sh \\
        /export/local/aurora/CommonData/j2se_jdk/jdk/test/java/lang/instrument/RedefineBigClass.sh
result: Error. Program `sh' interrupted! (timed out?)


test result: Error. Program `sh' interrupted! (timed out?)