I've been running grails for sometime without any issues but recently after an upgrade to Grails 1.1.1, I've encountered the dreaded PermGen errors. Prior to the upgrade, no such issue.

The error seems to be happening when the <g:link> and <g:render> tags are used in a GSP although I'm not sure it's indicative that this is the issue but more of the fact that it ran out of space when these tags were being rendered.

Typically, everyone who encounters PermGen errors recommend increasing your java environment options -- but what maybe the source of the issue? Is it a Grails 1.1/hibernate/spring problem?

The error:

2010-04-20 05:37:03,962 INFO  [STDOUT] 05:37:03,961 ERROR [GroovyPagesServlet] Error processing GSP: 
Error executing tag <g:render>: org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: 
Error executing tag <g:link>: java.lang.OutOfMemoryError: PermGen space 
org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: 
Error executing tag <g:render>: 
org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: 
Error executing tag <g:link>: java.lang.OutOfMemoryError: PermGen space