Application: Result
Error: java.lang.IllegalStateException exception
java.lang.IllegalStateException: An Exception occurred while generating the Exception page 'WOExceptionPage'. This is most likely due to an error in 'WOExceptionPage' itself or WebObjects encountered an uncaught exception while creating a Session object.

Below are the logs of the original Exception which occured in Application, then the later Exception in WOExceptionPage.

Original Exception: [java.lang.OutOfMemoryError] GC overhead limit exceeded:java.lang.OutOfMemoryError: GC overhead limit exceeded

WOExceptionPage Exception:
com.webobjects.appserver.parser.woml.WOMLTemplateParserException: error: 5:4: The element type "meta" must be terminated by the matching end-tag "</meta>".