IV01900: NPE IS THROWN WHEN TRYING TO GET AN ALGORITHM PROVIDED BY A DEFAULT PROVIDER AFTER APPLYING APAR IZ82926

APAR status

• Closed as program error.

Error description

• Error Message: Customer get an NPE when running a WAS script.
  From the exception trace, it is acutally creating an
  SecureRandom instance.
  .
  Stack Trace: The exception trace will be like following:
  "Caused by: java.lang.NullPointerException
          at
  org.apache.harmony.security.fortress.Services$NormalServices.cre
  ateDefaultProviderInstance(Services.java:295)
          at
  org.apache.harmony.security.fortress.Services$NormalServices.loa
  dAllProviders(Services.java:225)
          at
  org.apache.harmony.security.fortress.Services$NormalServices.acc
  ess$500(Services.java:155)
          at
  org.apache.harmony.security.fortress.Services$NormalServices$2.r
  un(Services.java:214)
          at
  org.apache.harmony.security.fortress.Services$NormalServices$2.r
  un(Services.java:212)
          at
  java.security.AccessController.doPrivileged(AccessController.jav
  a:203)
          at
  org.apache.harmony.security.fortress.Services$NormalServices.get
  ProviderList(Services.java:212)
          at
  org.apache.harmony.security.fortress.Services$NormalServices.acc
  ess$1500(Services.java:155)
          at
  org.apache.harmony.security.fortress.Services.getProvidersList(S
  ervices.java:762)
          at
  java.security.SecureRandom.findService(SecureRandom.java:135)
          at
  java.security.SecureRandom.<init>(SecureRandom.java:101)
  ..."
  .
  

Local fix

Problem summary

• The root cause of this issue is that the provider who provides
  this requested algorithm is not on the classpath.
  Our code should handle this scenario instead of throwing an NPE.
  

Problem conclusion

• This defect will be fixed in:
  6.0.1 SR1
  6.0.0 SR10
  .
  The code has been updated to handle this scenario.
  But this fix just handle this exception, customer should make
  sure the environment variable is correct.
  For this issue, $JAVA_EXT_DIRS is empty.
  .
  To obtain the fix:
  Install build 20110408 or later
  

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