java.lang.OutOfMemoryError: Java heap space in bi publisher report in R12.1.3

Hi All,

We are having java.lang.OutOfMemoryError: Java heap space found in the concurrent request log.

1)

SELECT DEVELOPER_PARAMETERS FROM FND_CP_SERVICES

WHERE SERVICE_ID = (select MANAGER_TYPE from FND_CONCURRENT_QUEUES

where CONCURRENT_QUEUE_NAME = 'FNDCPOPP'); 

o/p: 2048M

2) checked temp directory has lot of space and full permission

3)

Under FO Processing, set:

 

  o Use XML Publisher's XSLT processor set to True

  o Enable scalable feature of XSLT processor set to TRUE

  o Enable XSLT runtime optimization set to True

4) added -mx2048m in options in xml publisher report

  

But still program completing with warning.

The program generating huge amount of xml tags in Oracle Apps R12.1.3, BI Publisher 5.6.3