BPEL Processes Fail Under Load With "Error in <assign> Expression: XPath Expression Returns Zero Node" (Doc ID 433846.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle(R) BPEL Process Manager - Version: V10.1.2.0.2
This problem can occur on any platform.

Symptoms

When a large number of BPEL processes are being processed in BPEL engine, some processes fail
with the following error,

Error in <assign> expression: <to> value is empty at line "65":
The XPath expression:
"/child::ns5:FuncAck/attribute::GatewayDocID/attribute::GatewayDocID"
returns zero node, when applied to document below:

The correct Xpath expression should be "/child::ns5:FuncAck/attribute::GatewayDocID"

.

Cause

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