IJ41351: IPV6 SOCKET CREATION FAILS WITH A SOCKETEXCEPTION ON Z/OS

APAR status

• Closed as program error.

Error description

• Error Message: java.net.SocketException: Protocol family
  unavailable
  .
  Stack Trace: java.net.SocketException: Protocol family
  unavailable
  at java.base/java.net.PlainSocketImpl.socketConnect(Native
  Method)
  at
  java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPla
  inSocketImpl.java:412)
  at
  java.base/java.net.AbstractPlainSocketImpl.connectToAddress(Abst
  ractPlainSocketImpl.java:255)
  at
  java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlain
  SocketImpl.java:237)
  at
  java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:
  392)
  at java.base/java.net.Socket.connect(Socket.java:609)
  at java.base/java.net.Socket.connect(Socket.java:558)
  at java.base/java.net.Socket.<init>(Socket.java:454)
  at java.base/java.net.Socket.<init>(Socket.java:231)
  at HelloSocket.main(HelloSocket.java:28)
  .
  N/A
  

Local fix

• N/A
  

Problem summary

• The IPv6 support detection code for z/OS was broken, causing the
  SocketException.
  

Problem conclusion

• The socket creation code has been updated to rightly detect IPv6
  support from the underlying z/OS.
  .
  This APAR will be fixed in the following Releases:
  .
  IBM Semeru Runtime Certified Edition
     11              11.0.16.0
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  maintenance can be found at:
             https://www.ibm.com/support/pages/java-sdk
  

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

  OPENJDK CLASS L

• Fixed component ID

  621800100

Applicable component levels