FULL PRODUCT VERSION :
java version "1.6.0_18"
Java(TM) SE Runtime Environment (build 1.6.0_18-b07)


ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The Java Web Start fails to start when the URL passed as argument exceeds 250 characters.

Example: /usr/bin/javaws 'http://localhost:8080/test/myJsp.jsp?params=parameter&parameter=1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890'
 
Javaws returns the 'Unable to launch the application' dialog with following details:

InvalidArgumentException[ Invalid arguments supplied: { }]
  at com.sun.javaws.Main.continueInSecureThread(Main.java:144)
  at com.sun.javaws.Main$1.run(Main.java:111)
  at java.lang.Thread.run(Thread.java:637)
 
When removing one character for the URL string, everything works fine.


REPRODUCIBILITY :
This bug can be reproduced always.

Release Regression From : 6u17
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.