IV24588: COM.SUN.JDI.CONNECT.LISTENINGCONNECTOR.ACCEPT() FAILS WITH BINDE XCEPTION: ADDRESS ALREADY IN USE

APAR status

• Closed as program error.

Error description

• Error Message: The call to
  com.sun.jdi.connect.ListeningConnector.accept() fails with
  java.net.BindException: Address already in use despite the port
  being free.
  .
  Stack Trace: java.net.BindException: Address already in use
   at java.net.PlainSocketImpl.socketBind(Native Method)
   at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:402)
   at java.net.ServerSocket.bind(ServerSocket.java:328)
   at java.net.ServerSocket.bind(ServerSocket.java:286)
   at
  com.sun.tools.jdi.SocketTransportService.startListening(SocketTr
  ansportService.java:237)
   at
  com.sun.tools.jdi.SocketTransportService.startListening(SocketTr
  ansportService.java:265)
   at
  com.sun.tools.jdi.GenericListeningConnector.startListening(Gener
  icListeningConnector.java:96)
   at
  com.sun.tools.jdi.SocketListeningConnector.startListening(Socket
  ListeningConnector.java:67)
   at
  com.sun.tools.jdi.GenericListeningConnector.accept(GenericListen
  ingConnector.java:143)
   at
  tests.com.ibm.jtc.jdi.debugger.Connectors.createListeningVM(Conn
  ectors.java:569)
   at
  tests.com.ibm.jtc.jdi.debugger.Connectors$CreateConnectionThread
  .run(Connectors.java:730)
  .
  Is reported by SVT
  

Local fix

• No
  

Problem summary

• The call to com.sun.jdi.connect.ListeningConnector.accept()
  fails with java.net.BindException: Address already in use
  despite the port being free.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR2
  6.0.0 SR11
  .
  ListeningConnector is an Interface and is implemented by
  GenericListeningConnector, which is used in JDI package. This
  class is internally maintaining a HashMap (will have "address"
  and "timeout" arguments stored) for book keeping purposes. Code
  blocks updating this HasMap are not synchronized causing
  HashMap.get(arg) return null. When null returned, to keep
  compatibility with previous releases in cases where debugger
  hasn't called startListening, code does a one-off accept,
  resulting in a failure.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R700 PSY

     UP

• R600 PSY

     UP