FULL PRODUCT VERSION :
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows XP, Linux

A DESCRIPTION OF THE PROBLEM :
  Bug 4969042 : ValidationHandler does not invoke ContentHandler.ignorableWhitespace() has reappeared in Java 6.

See the test program attached to 4969042 . If run using Java 6 update 1, it does not output OK.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See the test program attached to 4969042 . If run using Java 6 update 1, it does not output OK.

ACTUAL -
Method ignorableWhitespace() was not invoked.

REPRODUCIBILITY :
This bug can be reproduced always.

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See 4969042
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Release Regression From : 5.0u10
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.