Outofmemoryerror:java Heap Space and GC overhead limit exceeded common solution in Ant Build.xml

This is just a little bit of experience, summed up, where the first two corresponding to the initial error, the latter two corresponding to the second error, if the heap space is not enough, you can change the larger.

<jvmarg value= "-xms512m"/><jvmarg value= "-xmx512m"/><jvmarg value= "-xx:-usegcoverheadlimit"/> <jvmarg value= "-XX:+USECONCMARKSWEEPGC"/>

Outofmemoryerror:java Heap Space and GC overhead limit exceeded common solution in Ant Build.xml