JDK-8217094 : HttpClient SSL race if a socket IOException is raised before ALPN is available
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.net
  • Affected Version: 11,12,13
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2019-01-15
  • Updated: 2019-09-26
  • Resolved: 2019-01-16
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JDK 11
While investigating another test I stumbled on a race condition in the SSLTube/SSLFlowDelegate: if an IOException is raised at the lower level (socket) before the ALPN is available the ALPN CF may never be completed, and as a result the connection may be stuck. 
Fix Request Backporting this patch fixes a race condition in SSL clients. Patch applies cleanly to 11u, but the test fails to compile. See RFR here: https://mail.openjdk.java.net/pipermail/jdk-updates-dev/2019-March/000775.html

Fix Request: A race condition which should be eliminated. Auto unit test case developed.