Hi Matt,
 
  Presently i'm working with appfuse 1.9 (struts) application, in my
application i need to generate the reports with customized queries which is
not related to the hibernate mapped classes. In some situations the query
returns 50,000 records or higher (return as a list to use displaytag library
to shown), at that moment it gives an error like 

    java.lang.OutOfMemoryError: Java heap space
 
 i tried it out with JAVA_OPTS in my environmental variable -Xms128m
-Xmx1024m, but it is not given any difference.

please suggest me how to avoid the java heap space problem 

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Sudhakar
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