To Increase the Heap Size in NetBeans IDE

Before You Begin

Save a backup copy of the netbeans.conf file before beginning this process.

1. Navigate to JavaCAPS-home/netbeans-home/etc and copy the netbeans.conf file to the NetBeans user directory (JavaCAPS-home/.netbeans/caps/etc).

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   Note –

   You may need to create the etc directory in the NetBeans IDE user directory.

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2. In your NetBeans IDE user directory, edit the —J-Xmx command line Java startup switch in the netbeans.conf file, for example:

   # command line switches
   netbeans_default_options=" -J-Xms32m -J-Xmx128m -J-XX:PermSize=32m
   -J-XX:MaxPermSize=96m -J-Xverify:none -J-Dapple.laf.useScreenMenuBar=true"

3. Restart the NetBeans IDE.

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   Note –

   To ensure that you do not run out of memory while the built-in parser is running, you can also add the garbage collector switches, -J-XX:+UseConcMarkSweepGC (concurrent collector) and -J-XX:+UseParNewGC (parallel collector), to the netbeans.conf file.

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