J2SE Version (please include all output from java -version flag):

  java version "1.5.0_03"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_03-b07)
  Java HotSpot(TM) Client VM (build 1.5.0_03-b07, mixed mode, sharing)

Does this problem occur on J2SE 1.3, 1.4.x or 1.5?  Yes / No (pick one)
  1.5

Operating System Configuration Information (be specific):
  Windows XP

Bug Description:
  Having a query string to a jnlp file negates the SingleInstanceService.  
  This is a total show stopper for us.  We wanted to use a new link with 
  a query string to modify the current state of our running program.  
  If this does not work, we don't really have a solution to the problem 
  we are trying to solve.

Steps to Reproduce (be specific):
  * Create a webstart enabled application that implements the SingleInstanceListener
    and registers itself appropriately
  * Create a servlet to process JNLP files
	Servlet will detect a query string on the jnlp request
	If a query string is detected, it will modifiy the JNLP file
		The "href" attribute of the "jnlp" tag altered to show the query string 
		For example, 
			<jnlp 
				spec="1.0+" 
				codebase="http://k9.dev.donnell.com:8084/" 
				href="[original href]?[query string]">
  * Run the webstart program with a link that does not contain a query string.
  * While that program is still running, click on the same link again.
  * RESULT: theActivation(String[] args) method will be called in the original
    instance...SUCCESS

  * Run the webstart program again, this time from a link that does contain a 
    query string.
  * While that program is still running, click on the same link again.
  * RESULT: SingleInstanceService will be ignored and a new instance will
    start...FAILURE

  No matter what we do, having a query string nullifies the SingleInstance
  functionality
###@###.### 2005-05-05 02:30:18 GMT