zhouyanming created WW-4419:
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Summary: Defend for NPE when performing async request
Key: WW-4419
URL: https://issues.apache.org/jira/browse/WW-4419
Project: Struts 2
Issue Type: Bug
Components: Plugin - SiteMesh
Reporter: zhouyanminghttps://github.com/apache/struts/pull/30 -- This message was sent by Atlassian JIRA (v6.3.4#6332)
