IV62978: JAVA.NET.INETADDRESS.GETALLBYNAME(STRING HOST) DOES NOT RETURN BOTH IPV4 AND IPV6 ADDDRESSES ON ZOS PLATFORM

APAR status

• Closed as program error.

Error description

• Error Message: When getAllByName(String host) is used in z/OS,
  only IPv6 addresses are returned. The expected behavior is to
  return all addresses (IPv4 and IPv6) with the addresses listed
  in the appropriate order based on java.net.preferIPv6Addresses.
  When it is false (the default), the IPv4 Addresses should be
  listed first. Otherwise the IPv6 Addresses should be listed
  first.
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• The problem is specific to z/OS as the corresponding system call
  for getAllByName() return both IPv4 and IPv6 addresses only
  when specific flags are set.
  

Problem conclusion

• The JDK has been updated to set the proper flags for the system
  call to return both IPv4 and IPv6 addresses.
  .
  This APAR will be fixed in the following Java Releases:
     6    SR16 FP2  (6.0.16.2)
     7 R1 SR2       (7.1.2.0)
     6 R1 SR8 FP2   (6.1.8.2)
     7    SR8       (7.0.8.0)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, Java maintenance is available
  from:
             https://www.ibm.com/developerworks/java/jdk/
  

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

• R600 PSY

     UP

• R700 PSY

     UP