PI06129: SERVER FAILS TO START WHEN JDK SWITCHED FROM 1.7 TO 1.6

8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• Server fails to start when jdk switched from Java 7 to Java 6.
  
  After a nodeagent or profile is switched to Java 7, and a
  server managed by that agent or within that profile is switched
  to Java 6, that server might not start.
  
  The following error is seen in native_stdout log file:
  Error occurred during initialization of VM
  java.lang.UnsupportedClassVersionError:
  java/security/cert/Certificate
  : Unsupported major.minor version 51.0
  at java.lang.Class.getDeclaredMethods0(Native Method)
  at
  java.lang.Class.privateGetDeclaredMethods(Class.java:2436)
  at java.lang.Class.getDeclaredMethod(Class.java:1937)
  at
  java.security.SecureClassLoader.<clinit>(SecureClassLoader.java:
  45)
  at sun.misc.Launcher.<init>(Launcher.java:55)
  at sun.misc.Launcher.<clinit>(Launcher.java:43)
  at
  java.lang.ClassLoader.initSystemClassLoader(ClassLoader.java:133
  7)
  at
  java.lang.ClassLoader.getSystemClassLoader(ClassLoader.java:1319
  )
  

Local fix

• Change nodeagent and appserevr to use jdk 1.6 (jdk for
  nodeagent being at higher level is causing problems)
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server running mixed versions of JDK        *
  ****************************************************************
  * PROBLEM DESCRIPTION: After switching an appserver from       *
  *                      Java 1.7 to 1.6, it will not start if   *
  *                      the node agent or profile default       *
  *                      remains at Java  1.7.                   *
  ****************************************************************
  * RECOMMENDATION:  Install a fix pack containing this APAR     *
  ****************************************************************
  When a launching process running Java 1.7 starts a server
  process running Java 1.6, the endorsed library path of the
  launched 1.6  process can contain libraries for 1.7, which can
  cause a startup failure.
  

Problem conclusion

• The process launcher code is revised to not pass endorsed
  directories from the launcher process to the launched process
  for the affected platforms.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.3.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

• Use startServer.sh with the -script option to generate a
  startup script, then edit that script to remove endorsed
  directory paths that point to Java 1.7 libraries.
  

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

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R850 PSY

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