Merged revisions 1520597 via svnmerge from 
https://svn.apache.org/repos/asf/cxf/trunk

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  r1520597 | sergeyb | 2013-09-06 16:23:40 +0100 (Fri, 06 Sep 2013) | 1 line
  
  [CXF-5135] Adding a missing NPE guard to AsyncInvokerImpl
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git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/2.7.x-fixes@1520606 13f79535-47bb-0310-9956-ffa450edef68