Heap space Exception

Question

I have 16GB RAM and 64bit windows operating system.I want to run an web application I got heap space exception if i change VM arguments to -Xms3512m -Xmx3512m -XX:MaxPermSize=128m -XX:-UseGCOverheadLimit -XX:ReservedCodeCacheSize=32m I got exception as

 Error occurred during initialization of VM
Could not reserve enough space for object heap

but I have another system with same configuration but that system accept this VM Arguments. please give me solution

possible duplicate of [Could not reserve enough space for object heap](http://stackoverflow.com/questions/4401396/could-not-reserve-enough-space-for-object-heap) — epoch, Jun 06 '14 at 06:31

score 0 · Answer 1 · answered Jun 05 '14 at 14:27

0

Increase the heap size with: XX:MaxHeapSize=??m

answered Jun 05 '14 at 14:27

epoch

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when i put XX:MaxHeapSize=??m i got this excepiton "Unrecognized VM option 'MaxHeapSize=??m'" do i need to replace XX:maxpermsize with xx:maxheapsize=??m – vijaya kumar Jun 05 '14 at 14:49
you need to put the amount you want to allocate where the `??` are, i.e.: `XX:MaxHeapSize=256m` – epoch Jun 05 '14 at 18:53

score 0 · Answer 2 · answered Apr 20 '15 at 08:15

Heap allocation done at the JVM initialization. It look for contiguous memory space of size -Xmx. If it could not find the continuous space of Xmx size then JVM failed during initialization Please add the argument -verbose:init and check the console output to identify which stage it failed on initialization.

Heap space Exception

2 Answers2