IC76169: PCOM: NOCLASSDEFFOUND ERROR RUNNING JAVA APPLICATION ON PCOM 6.0.2

Personal Communications 6.0.3

APAR status

• Closed as program error.

Error description

• IBM Personal Communications 6.0.2 on Windows 7.
  
  We are running some screen-scraping Java applications using Host
  Access Class Libraries for Java, provided with PCOM in
  PCSECLJ.jar file
  
  Applications were running fine with PCOM 5.7. After upgrading
  to PCOM 6.0.2, they are failing when referencing classes
  
  ECLField, ECLFieldList, etc.
  
  Exception in thread "main" java.lang.NoClassDefFoundError:
  org/ohio/iOhioFields
          at java.lang.ClassLoader.defineClass1(Native Method)
          at java.lang.ClassLoader.defineClassCond(Unknown Source)
          at java.lang.ClassLoader.defineClass(Unknown Source)
          at java.security.SecureClassLoader.defineClass(Unknown
  Source)
          at java.net.URLClassLoader.defineClass(Unknown Source)
          at java.net.URLClassLoader.access$000(Unknown Source)
          at java.net.URLClassLoader$1.run(Unknown Source)
          at java.security.AccessController.doPrivileged(Native
  Method)
          at java.net.URLClassLoader.findClass(Unknown Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
          at sun.misc.Launcher$AppClassLoader.loadClass(Unknown
  Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
  Caused by: java.lang.ClassNotFoundException:
  org.ohio.iOhioFields
          at java.net.URLClassLoader$1.run(Unknown Source)
          at java.security.AccessController.doPrivileged(Native
  Method)
          at java.net.URLClassLoader.findClass(Unknown Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
          at sun.misc.Launcher$AppClassLoader.loadClass(Unknown
  Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
  
  After an initial analysis of the problem, it appears that
  package "org.ohio.*" previously shipped in PCSECLJ.jar version
  5.x , is no longer supplied in version 6.0 , causing the nodef
  error seen above.
  
  javadoc (supplied with Personal Communication 6.0.2) shows
  
  public class ECLField
  extends Object
  implements ECLConstants, iOhioField
  
  which makes us believe there could be a packaging error
  somewhere in the PCOM 6.0.x distribution.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users referencing classes from           *
  *                 PCSECLJ.JAR                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: User applications fail when             *
  *                      referencing classes ECLField,           *
  *                      ECLFieldList, etc.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When instantiating or referrring to ECLField (or similar)
  classes, the user application gets a runtime error saying that
  iOhio objects are not found.
  

Problem conclusion

• PCSECLJ.JAR has been rebuilt to include the Ohio package even
  though these Ohio classes are not exposed to the user.
  
  Fix is scheduled for PCOM 6.0.3 Refresh Pack
  

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:

  IP23318

Modules/Macros

• PCSECLJ
  

Fix information

• Fixed component name

  PCOMM V5 COMBO-

• Fixed component ID

  5639I7000

Applicable component levels

• R601 PSY

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