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To increase the memory available to Maven, the environment variable MAVEN_OPTS should be set to the value -Xmx1024m -XX:MaxPermSize=128m, or more depending on the amount of memory you have available on your machine.
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export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=128m" |
This is the equivalent command in csh. Add this to your ~/.cshrc file to have this setting available in all your sessions.
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setenv MAVEN_OPTS "-Xmx1024m -XX:MaxPermSize=128m" |
Finally, if you are using Windows, then this command can be used from the command prompt.
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set MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=128m" |
To make this variable permanent on Windows, use the Control Panel -> System dialog. Select the Advanced tab and click Environment Variables. Under the System Variables table, click New. Type MAVEN_OPTS for the Variable name and -Xmx1024m -XX:MaxPermSize=128m for the Variable value.