I am getting the following exception repeatedly each time I try to run the program.
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
I tried to increase my virtual memory (page size) and RAM size, but to no avail.
How can I eliminate this error?
To fix the error "Could not reserve enough space for object heap", add the options "-Xmx<size>m" to set the maximum size for the object heap memory allocation. This must be set large enough to accommodate loading your application into memory, but smaller than your requested total memory allocation by 2GB.
“Could not reserve enough space for object heap” is a specific JVM error that is raised when Java process cannot create the virtual machine due to memory constraints encountered on the running system: java -Xms4G -Xmx4G -jar HelloWorld.
So the theoretical limit for maximum heap size on 32 bit JVM is 4GB and for 64 bit JVM it's 2^64.
Run the JVM with -XX:MaxHeapSize=512m
(or any big number as you need) (or -Xmx512m
for short)
This can also be caused by setting something too large on a 32-bit HotSpot vm, for example:
-Xms1536m -Xmx1536m
where this might/would work:
-Xms1336m -Xmx1336m
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