JDeveloper performance with XSL Mapper

Hi All,
Not sure if this is the right place to ask this question since it has to do JDeveloper performance with SOA and not ADF.
In the XSL Transformation mapper tool, whenever I do an auto-map between two large schemas, my JDeveloper memory usage hikes up to about 1.3 GB and then both the JRE and JDeveloper hangs although the transformation finishes. The problem is that sometimes it hangs before you can save it. It almost seems like a memory leak.
NOTE: I am not getting any out-of-memory error since I increased already increased the memory.
Any help to optimize and solve this problem will be very helpful.
Thanks!

chk this
http://docs.oracle.com/cd/E11036_01/doc.1013/e10295/xslt_mpr.htm
you should have SOA composite application extension for this..
if you dont want a visual transformation then you can use the jdeveloper project properties -> Run/Debug -> edit run configuration -> XSLT

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