IV25944: JDWP SERVER CANNOT BE CONNECTED TWICE WITH SOCKET

APAR status

• Closed as program error.

Error description

• Error Message: Debugger will give "Connection refused" error
  when trying to connect JDWP server on zOS for the second time.
  .
  Stack Trace: java.net.ConnectException: Connection refused
   at java.net.PlainSocketImpl.socketConnect(Native Method)
   at
  java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketIm
  pl.java:327)
   at
  java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainS
  ocketImpl.java:193)
   at
  java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl
  .java:180)
   at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
   at java.net.Socket.connect(Socket.java:546)
  .
  

Local fix

Problem summary

• The problem is caused by different socket option of JDWP module
  on zOS.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR12
  6.0.1 SR4
  .
  The JDWP module has been updated to use socket option that reuse
  addresses.
  

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:

  PM93634 PM97018

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSY

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