FULL PRODUCT VERSION :
java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)


ADDITIONAL OS VERSION INFORMATION :
Linux baez.mi.oa-brera.inaf.it 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:12 EDT 2008 i686 i686 i386 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
The command

java -XX:HeapDumpPath= fubar

(note the blank value for HeapDumpPath)

produces a segmentation fault immediately. It would be a lot better if the JVM issued an error message complaining about the missing value.

The segfault does *not* occur for JDK 1.6.0._07, which reports

Exception in thread "main" java.lang.NoClassDefFoundError: fubar

as it should. Even here, however, there is no complaint about the missing value for HeapDumpPath.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
java -XX:HeapDumpPath= fubar

(or any class you prefer instead of the undefined "fubar")

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
"Error: missing value for argument XX:HeapDumpPath" or something similar.
ACTUAL -
Segmentation fault (core dumped)

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Segmentation fault (core dumped)

REPRODUCIBILITY :
This bug can be reproduced always.

Release Regression From : 5.0u17
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.

Release Regression From : 5.0u17
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.