FULL PRODUCT VERSION :
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
SunOS raylpz1.leipzig.ufz.de 5.9 Generic_118558-20 sun4u sparc SUNW,Sun-Fire-V240 Solaris

EXTRA RELEVANT SYSTEM CONFIGURATION :
2 CPU's
8 GB RAM


A DESCRIPTION OF THE PROBLEM :
The 'java' executable won't run if virtual memory is limited to less than 2GB.
This was working with prior Java releases (e.g. JDK 1.4.2).


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Limit the virtual memory to a value less than 2GB, for example 512MB:

# ulimit -v 524288

Try to execute the 'java' binary:

# java -version
Error occurred during initialization of VM
Could not reserve enough space for  customer  heap
Could not create the Java virtual machine.

This works if 'ulimit -v' is set at least to 2GB (or greater).


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Java should work with VM limits less than 2GB.


REPRODUCIBILITY :
This bug can be reproduced always.
Posted Date : 2006-01-20 08:27:12.0

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I encountered this problem when trying to run Java on a SunRay Thin-client environment. Setting the ulimit to something like 512Mb is a must to keep the environment steady. At this point we are not able to run any Java application that uses Java 1.4 or Java 1.5