Test tools/launcher/BigJar.java specified timeout as:
    @run main/timeout=600 BigJar

But this timeout does not work, test won't be timed out after 600 seconds.

Here's real run result to show this issue, test pass and from result .jtr:

#section:main
----------messages:(3/114)----------
command: main BigJar
reason: User specified action: run main/timeout=600 BigJar
elapsed time (seconds): 1268.138