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Posted to dev@hc.apache.org by bu...@apache.org on 2005/09/24 01:14:13 UTC

DO NOT REPLY [Bug 36791] New: - HttpConnection isOpen flag concurrency problem

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http://issues.apache.org/bugzilla/show_bug.cgi?id=36791

           Summary: HttpConnection isOpen flag concurrency problem
           Product: HttpClient
           Version: 3.0 RC3
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Commons HttpClient
        AssignedTo: httpclient-dev@jakarta.apache.org
        ReportedBy: jmwhite5@yahoo.com


The HttpConnection.java class contains an isOpen boolean used to track the state
of the connection (opened or closed).  The problem is that in the
closeSocketAndStreams(), the flag is only flipped at the end of the
unsynchronized method (after resources have been released) which causes a
concurrency issue in flushRequestOutputStream() where the flag is checked first
and the the outputStream is accessed.

I'm providing a patch for this problem.

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