IV33470: UNDER CERTAIN ERROR CONDITIONS, JAVA.LANG.CLASSFORMATERROR DOESN'T PROVIDE THE NAME OF THE INVALID CLASS.

APAR status

• Closed as program error.

Error description

• Error Message: Exception in thread "main"
  java.lang.ClassFormatError
  .
  Stack Trace: Exception in thread "main"
  java.lang.ClassFormatError
  at java.lang.ClassLoader.defineClassImpl(Native Method)
  at java.lang.ClassLoader.defineClass(ClassLoader.java:294)
  at
  java.security.SecureClassLoader.defineClass(SecureClassLoader.ja
  va:143)
  at java.net.URLClassLoader.defineClass(URLClassLoader.java:700)
  at java.net.URLClassLoader.access$400(URLClassLoader.java:81)
  at
  java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1148
  )
  at
  java.security.AccessController.doPrivileged(AccessController.jav
  a:314)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:583)
  at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:742)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:710)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:313)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:689)
  at java.lang.Class.forNameImpl(Native Method)
  at java.lang.Class.forName(Class.java:139)
  at test.main(test.java:3)
  .
  

Local fix

Problem summary

• java.lang.ClassFormatError doesn't provide sufficient
  information to identify the invalid classfile in all situations.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR4
  6.0.1 SR5
  6.0.0 SR13
  .
  The JVM has been updated to always provide the name of invalid
  classfile
  

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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

     UP

• R600 PSY

     UP