This month the Weld SE test suite suddenly started to fail on a Linux machine with Oracle JDK7 and the default locale cs_CZ:
A java.util.logging.Logger is used in the forked process. The exception occurs when the following log message is written to the standard output:
We have found out that the timestamp I 29, 2016 2:01:43 (i.e. 2016-01-29 14:01:43) is incorrectly parsed as ForkingRunListener.BOOTERCODE_SYSPROPS operation.
I think the protocol should be robust enough to avoid similar collisions.