Issue "Insufficient Heap Memory"
Using 64bit VM settings, min.heap=1024MB, min permgen=256MB, default fork arguments=[-Xmx1024m, -XX:MaxPermSize=256m]
**** WARNING: insufficent heap memory ****
The JVM reports 910 MB but we recommend at least 1024 MB +/- 20
Use your JVM's heap size option (like -Xmx1024M) to set that size.
Will fork a JVM to get enough memory.
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Available memory below specified limits and low-memory action set to fork, will fork to get enough memory
Not forking JVM as -nofork option is set
Setting properties from file
The JVM reports 910 MB but we recommend at least 1024 MB +/- 20
Use your JVM's heap size option (like -Xmx1024M) to set that size.
Will fork a JVM to get enough memory.
********************************************************************************
Available memory below specified limits and low-memory action set to fork, will fork to get enough memory
Not forking JVM as -nofork option is set
Setting properties from file
Resolution
If you have just closed any java program then wait for a few minutes and give chance to garbage collection to remove the unwanted space and clean the Heap memory.