https://www.ibm.com/developerworks/community/groups/service/html/communitystart?communityUuid=2245aa39-fa5c-4475-b891-14c205f7333c

http://www-01.ibm.com/support/docview.wss?uid=swg27011855

http://www-01.ibm.com/support/docview.wss?uid=swg27011855&aid=1

http://www.ibm.com/developerworks/websphere/library/techarticles/0608_poddar/0608_poddar.html

http://javaeesupportpatterns.blogspot.co.uk/2011/11/outofmemoryerror-java-heap-space.html

http://www.ibm.com/developerworks/java/jdk/tools/dumpanalyzer/

Please comment if you have any question. Thanks.. :)