FULL PRODUCT VERSION :
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode, sharing)

A DESCRIPTION OF THE PROBLEM :
The javadoc for java.lang.StringBuilder says that StringBuilder extends Object.  The source code shows that StringBuilder extends AbstractStringBuilder.  No javadoc exists for AbstractStringBuilder.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Look at javadoc.  Look at source.
http://java.sun.com/j2se/1.5.0/docs/api/java/lang/StringBuilder.html

REPRODUCIBILITY :
This bug can be reproduced always.
  xxxxx@xxxxx   10/20/04 18:26 GMT

N/A

That StringBuilder extends AbstractStringBuilder is an
implementation detail of StringBuilder, not a part of its
exported API.  The format in which the Standard Doclet
presents inheritence information ("extends Object") is
certainly a bit misleading:  you should read that as
stating only that Object is extended, but not necessarily
directly.

A further discussion of this issue can be found in the javadoc
bug report 4780441.
  xxxxx@xxxxx   10/20/04 22:39 GMT