Resolution:
As per Apache site ( http://tomcat.apache.org/faq/memory.html) for resolving memory issues:

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If you have a lot of servlets or JSP's, you may need to increase your permanent generation.
By default, it is 64MB. Doubling it to be -XX:MaxPermSize=256m might be a good start.
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You will need to add the below property in bwc/5.2./bin/tomcat_&ltyour servletEngine>.tra file:

java.extended.properties -XX:PermSize=128m -XX:MaxPermSize=256m

Change the values as needed and also append all the other extended properties if you have any.