Invalid elements in choice causing infinite loop
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Key: AXIS2-4677
URL: https://issues.apache.org/jira/browse/AXIS2-4677
Project: Axis2
Issue Type: Bug
Components: codegen
Affects Versions: 1.5.1
Reporter: David Meiklejohn
I've encountered a problem in Axis2 1.5.1 that seems to cause an infinite loop.
We have various choice elements defined in our WSDL's and it seems that if an
element that is not expected is supplied to a choice it just hangs indefinitely
and CPU usage goes up by about 100%.
For example, we have a choice defined as below (simplified):
<complexType name="ModifyDetails">
<choice>
<element name="status" type="string" />
<element name="email" type="string" />
<element name="address" type="string " />
<element name="reference" type="string " />
</choice>
</complexType>
And if we were to send a message containing an extra unexpected element,
'comment' in this case, the example I described above occurs. The call never
returns, the client times out, and CPU usage rises to 100% and stays there.
Subsequent calls make the CPU usage increase further.
<modifyDetails>
<status>cancelled</status>
<comment>Cancelled</comment>
</modifyDetails>
If I put just plain text in instead of the comment element it just seems to
silently ignore it but that extra element kills it. Shouldn't it return an
error of unexpected element or something along those lines?
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