PM11136: CLASS COM.IBM.WS PMI* AND COM.IBM.EJS.J2C RECEIVE NOCLASSDEFFOUNDERROR OR CLASSNOTFOUNDEXCEPTION IN MODE RESTRICT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A ClassNotFoundException can be experienced when setting
  'ibm.websphere.internalClassAccessMode = RESTRICT'.
  .
  The exception - ClassNotFoundException or NoClassDefFoundError -
  was for J2C and PMI in mode RESTRICT
  .
  The PMI exceptions was as follows:
  .
  ThreadId: 0000001b
    FunctionName: com.ibm.ws.webcontainer.servlet.ServletWrapper
    SourceId: com.ibm.ws.webcontainer.servlet.ServletWrapper
    Category: SEVERE
    ExtendedMessage: BBOO0220E: SRVE0068E: Uncaught exception
  thrown in
    one of the service methods of the servlet:
    perfservlet60. Exception thrown :
  java.lang.NoClassDefFoundError:
    com.ibm.ws pmi stat.StatisticImpl
     at java.lang.J9VMInternals.verifyImpl(Native Method)
  .
  The following classes had to be exempted in
  com.ibm.ws.runtime_6.1.0.jar/plugin.xml to make
  PerfServletApp.ear work
  in mode RESTRICT:
  .
        <exception name="com.ibm.ws.pmi.stat.StatisticImpl" />
        <exception name="com.ibm.ws.pmi.stat.CountStatisticImpl"
  />
        <exception name="com.ibm.ws.pmi.stat.DoubleStatisticImpl"
  />
        <exception name="com.ibm.ws.pmi.stat.RangeStatisticImpl"
  />
        <exception
  name="com.ibm.ws.pmi.stat.BoundedRangeStatisticImpl" />
        <exception name="com.ibm.ws.pmi.stat.AverageStatisticImpl"
  />
        <exception name="com.ibm.ws.pmi.stat.TimeStatisticImpl" />
  .
  For J2C, the classes are as follow:
  .
  com.ibm.ejs.j2c.ThreadIdentitySecurityHelper
  com.ibm.ws390.jta.TransactionManager
  com.ibm.ejs.j2c.PrivExAction
  com.ibm.ejs.j2c.J2CUtilityClass
  .
  The customer was receiving the following in the job-log, again
  while in mode RESTRICT.
  .
  java.lang.ClassNotFoundException: com.ibm.ejs.j2c.
  ThreadIdentitySecurityHelper
    at  com.ibm.ws.classloader.CompoundClassLoader.findClass
        (CompoundClassLoader.java:487)
    at  com.ibm.ws.classloader.CompoundClassLoader.loadClass
        (CompoundClassLoader.java:388)
    at  java.lang.ClassLoader.loadClass(ClassLoader.java:597)
    at
  com.ibm.tivoli.itcam.toolkit.ai.callbacks.captureclassload.
        AdvisableSecureClassLoader.loadClass
        (AdvisableSecureClassLoader.java:133)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere Application Server    *
  *                 V6.0.1                                       *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: A NoClassDefFoundError or               *
  *                      ClassNotFoundException is thrown for    *
  *                      a set of com.ibm.ws.pmi.stat classes.   *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When Java 2 Security is turned on or the
  ibm.websphere.internalClassAccessMode custom property is
  enabled, a ClassNotFoundException may be raised for the
  following classes: com.ibm.ws.pmi.stat.AverageStatisticImpl,
  com.ibm.ws.pmi.stat.BoundedRangeStatisticImpl,
  com.ibm.ws.pmi.stat.CountStatisticImpl,
  com.ibm.ws.pmi.stat.DoubleStatisticImpl,
  com.ibm.ws.pmi.stat.RangeStatisticImpl,
  com.ibm.ws.pmi.stat.StatisticImpl, and
  com.ibm.ws.pmi.stat.TimeStatisticImpl. These classes were
  incorrectly part of a set of classes being protected from
  application access.
  

Problem conclusion

• The list of protected WebSphere Application Server classes was
  updated to avoid a ClassNotFoundException or
  NoClassDefFoundError for these classes.
  
  APAR PM11136 is currently targeted for inclusion in Service
  Level (Fix Pack) 6.0.2.41 of WebSphere Application Server
  V6.0.1.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK95962

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• BBOUBINF
  

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R601 PSY UK55832

     UP10/04/16 P F004

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.