TEST_BUG java/lang/instrument/PremainClass/NoPremainAgent.sh fails intermittently

TESTFAIL:java/lang/instrument/PremainClass/NoPremainAgent.sh

Test java/lang/instrument/PremainClass/NoPremainAgent.sh failed in nightly due to timeout.
http://aurora.ru.oracle.com/functional/faces/RunDetails.xhtml?names=271525.CORELIBS-JDK8-NIGHTLY-JTREG-4

The test needs to be updated, below is part of log:
#section:shell
----------messages:(3/128)----------
command: shell NoPremainAgent.sh []
reason: User specified action: run shell NoPremainAgent.sh
elapsed time (seconds): 480.055
----------System.out:(1/44)----------
COMPILEJAVA=/export/home/aurora/sandbox/jdk
----------System.err:(0/0)----------
result: Error. Program `sh' interrupted! (timed out?)


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