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Tibco R3 Adapter Error: java.lang.NullPointerException

Issue:  After upgrading the code to 7.2.0 it starts giving error like below

Server Exception: Gateway Host: USMTGFCV6574D Gateway Service: sapgw02 Program ID: TIBSAP02 Error Message: java.lang.NullPointerException

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Complete Error:

2019 Mar 29 01:42:25:109 GMT -0700 Tibco_R3Adapter-Tibco_Outbound_R3Adapter Info [Application] AER3-000084 Received IDOC Name/Number/Receiving Partner: IDOCNEW-Offer03/000000101654285343/TIBSAP02, Count: 1
2019 Mar 29 01:42:25:341 GMT -0700 Tibco_R3Adapter-Tibco_Outbound_R3Adapter Info [Adapter] AER3-000091 Total IDOCs processed: 1
2019 Mar 29 01:42:25:342 GMT -0700 Tibco_R3Adapter-Tibco_Outbound_R3Adapter Info [Adapter] AER3-000199 Transaction rolled back 0A16A13406905C9DCF7D033D
2019 Mar 29 01:42:25:344 GMT -0700 Tibco_R3Adapter-Tibco_Outbound_R3Adapter Warn [Adapter] AER3-970276 Server Exception:
Gateway Host: USMTGFCV6574D
Gateway Service: sapgw02
Program ID: TIBSAP02
Error Message: java.lang.NullPointerException

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Resolution:
Install TIBCO ActiveMatrix(R) Adapter for SAP 7.2.0 Hotfix 3

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Details:

 The error occurs as the AE schemas were not picked up from the assigned schema folder.

So in my case under AE schema I had two SAP versions and for a segment the version that was getting picked up was not correct. This is not expected and so it gave NullPointerException. It only happened when I upgraded the code to 7.2.0. 

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Note: If you see this error in any other case then do share the details with me . :-)

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