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If you are seeing "java.lang.OutOfMemoryError: PermGen space" errors, this is a sure sign that Tomcat is running out PermGen Memory. (More info on PermGen Space: httphttps://blogsfrankkieviet.sunblogspot.com/fkieviet2006/entry10/classloader_-leaks_the_dreaded_java-dreaded-permgen-space.html)

To increase the amount of PermGen memory available to Tomcat (default=64MB), use either the JAVA_OPTS or CATALINA_OPTS environment variable, e.g:

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