FULL PRODUCT VERSION :
1.7.0_21

ADDITIONAL OS VERSION INFORMATION :
Windows 7 Ultimate 64-bit (Ver=6.1.7601)

A DESCRIPTION OF THE PROBLEM :
Having 1.7.0_21 installed prevents you from debugging jnlp?s.

We have two versions of our product, which uses JWS and fat clients: one that uses 1.6 (jnlp specifies 1.6*) and one that uses 1.7.

After installing 1.7.0_21, the clients will not start if JWS debug is turned on.
Even when running the 1.6 jnlp, if you just have 1.7.0_21 installed, you can?t start a jnlp with debug turned on. You don?t get any error messages, it just won?t start. No manner of clearing the cache etc. fixes it. Uninstalling 1.7.0_21 and reverting to 1.7.0.17 (the prior release) fixes the issue (Or just uninstalling 1.7.0.21, for the 1.6 applet)


REGRESSION. Last worked in version 7u17

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
see notes in description

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
see notes in description
ACTUAL -
see notes in description

ERROR MESSAGES/STACK TRACES THAT OCCUR :
no error messages or other output

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
None found - had to revert to prior jdk release