Adding an attachment causes failure in MessageHelper.clonePartially
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Key: SYNAPSE-309
URL: https://issues.apache.org/jira/browse/SYNAPSE-309
Project: Synapse
Issue Type: Bug
Components: Core
Reporter: Andreas Veithen
Fix For: 1.3
The failure occurs in the following scenario:
* The incoming message is not a SwA message.
* A mediator adds an attachment using one of the
org.apache.axis2.context.MessageContext#addAttachment methods.
This causes MessageContext to create a new Attachments object using the default
constructor. When the message is sent out later, MessageHelper.clonePartially
fails on the following instruction:
String soapPart = attachments.getSOAPPartContentID();
A NullPointerException is triggered inside the Attachments#getSOAPPartContentID
method because it tries to use the contentType attribute which is null in this
case (Attachments object created using the default constructor).
The problem can be solved easily by catching the NPE in clonePartially. Using
this workaround I was able to successfully send out the message with the
attachment, but intercepting NullPointerException is not a very clean solution.
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