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SAP PI RCVR SOAP Adapter Error - Failed to call the endpoint: Error in call over HTTP: HTTP 0 null

Hello Experts,

Suddenly all my receiver SOAP(Webservices) interfaces stopped working with below exception.

SOAP: Call failed: java.lang.NullPointerException: while trying to invoke the method java.lang.Object.toString() of a null object returned from com.sap.aii.af.sdk.xi.mo.MessageContext.getAttribute(java.lang.String, int)

Here is the XPI log:

Communication over HTTP. Socket created.

Communication over HTTP. Sending a request ...

Socket established. Start writing HTTP headers ...

Socket established. Start writing HTTP headers ...

Writing Service Metering HTTP headers...

Main HTTP headers successfully written. Start sending the content ...

Main HTTP headers successfully written. Start sending the content ...

Error closing the output stream [EXCEPTION] java.net.SocketException: Socket closed at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:116) at java.net.SocketOutputStream.write(SocketOutputStream.java:153) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at java.io.FilterOutputStream.close(FilterOutputStream.java:158) at com.sap.aii.af.sdk.xi.net.HTTPClientConnection.call(HTTPClientConnection.java:1375) at com.sap.aii.af.sdk.xi.net.HTTPClientConnection.post(HTTPClientConnection.java:352)

Error in call over HTTP: HTTP 0 null
[EXCEPTION]
java.lang.NullPointerException: while trying to invoke the method java.lang.Object.toString() of a null object returned from com.sap.aii.af.sdk.xi.mo.MessageContext.getAttribute(java.lang.String, int)
at com.sap.aii.af.sdk.xi.net.MIMEOutputSource.serialize(MIMEOutputSource.java:302)
at com.sap.aii.af.sdk.xi.net.MIMEOutputSource.serialize(MIMEOutputSource.java:284)
at com.sap.aii.af.sdk.xi.net.HTTPClientConnection.call(HTTPClientConnection.java:1122)
at com.sap.aii.af.sdk.xi.net.HTTPClientConnection.post(HTTPClientConnection.java:352)
at com.sap.aii.af.sdk.xi.srt.CallerServiceImpl2.call(CallerServiceImpl2.java:258)
at com.sap.aii.af.sdk.xi.srt.TransportBubble.onMessage(TransportBubble.java:47)
at com.sap.aii.af.sdk.xi.srt.ExtensionBubble.onMessage(ExtensionBubble.java:60)
at com.sap.aii.adapter.soap.ejb.XISOAPAdapterBean.callBubbleSequenceReceiver(XISOAPAdapterBean.java:1213)
at com.sap.aii.adapter.soap.ejb.XISOAPAdapterBean.process(XISOAPAdapterBean.java:959)

Any helpful information would be highly appreciated...

Thanks,

Nagesh

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