IV10376: NOCLASSDEFFOUNDERROR THROWN INSTEAD OF TYPENOTPRESENT WHEN CALLI NG GETANNOTATION() ON A MISSING DEPENDENT CLASS

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: Exception in thread "main"
  java.lang.NoClassDefFoundError: c
          at java.lang.ClassLoader.defineClassImpl(Native Method)
          at
  java.lang.ClassLoader.defineClass(ClassLoader.java:260)
          at
  java.security.SecureClassLoader.defineClass(SecureClassLoader.ja
  va:69)
          at
  java.net.URLClassLoader.defineClass(URLClassLoader.java:540)
          at
  java.net.URLClassLoader.defineClass(URLClassLoader.java:451)
          at
  java.net.URLClassLoader.access$300(URLClassLoader.java:79)
          at
  java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1038
  )
          at
  java.security.AccessController.doPrivileged(AccessController.jav
  a:288)
          at
  java.net.URLClassLoader.findClass(URLClassLoader.java:429)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:646)
          at
  sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:612)
          at java.lang.Class.forNameImpl(Native Method)
          at java.lang.Class.forName(Class.java:166)
          at
  com.ibm.oti.reflect.AnnotationParser.parseClass(AnnotationParser
  .java:203)
          at
  com.ibm.oti.reflect.AnnotationParser.parseElementValue(Annotatio
  nParser.java:156)
          at
  com.ibm.oti.reflect.AnnotationParser.parseAnnotation(AnnotationP
  arser.java:131)
          at
  com.ibm.oti.reflect.AnnotationParser.parseAnnotations(Annotation
  Parser.java:57)
          at
  java.lang.Class.getDeclaredAnnotations(Class.java:1652)
          at java.lang.Class.getAnnotations(Class.java:1609)
          at java.lang.Class.getAnnotation(Class.java:1589)
          at a.main(a.java:9)
  Caused by: java.lang.ClassNotFoundException: c
          at
  java.net.URLClassLoader.findClass(URLClassLoader.java:434)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:646)
          at
  sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:612)
          ... 22 more
  .
  

Local fix

• The issue can be worked around by having the missing class on
  the class path
  

Problem summary

• The NoClassDefFoundError is thrown erroneously when we call
  getAnnotation on a missing dependent class.
  

Problem conclusion

• This defect will be fixed in:
  6.0.1 SR1
  .
  The JVM has been fixed to correctly display TypeNotPresent in
  such cases.
  .
  To obtain the fix:
  Install build 20111108 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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

     UP