An applet with many jars is not able to launch when refreshed after cleaning javaws cache.

DESCRIPTION:
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An applet with Custom Progress bar gets lunched well when loaded with a Java version 6u18-b04 or late version.
After loading the applet when I clean the javaws cache (executing the command "javaws -uninstall" in the command prompt) and try to refresh the browser (same session), the applet fails to reload ! (Test case 1)

This is not the case when a simple applet without custom progress bar is loaded using jnlp file (Test case2) and which is correct behaviour.

PLATFORM:
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Tested on Windows XP.
Browser: FF3.x, IE6, IE7

JAVA VERSION:
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Tested with
java version "1.6.0_19-ea"
Java(TM) SE Runtime Environment (build 1.6.0_19-ea-b01)
Java HotSpot(TM) Client VM (build 16.2-b01, mixed mode, sharing)

STEPS:
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1) Install 6u18-b04 or later JRE
2) Load clean Javaws cache (javaws -uninstall)
3) Load test case 1 (below) in any browser.
4) After launch of the applet, execute "javaws -uninstall" in the command prompt to clean the cache. (while cleaning, the browser should remain open)
5) Try to refresh (reload) the browser (F5 / Ctrl+R).

If the applet is not able to relaunch and FileNotFoundException is thrown in the console, the bug is reproduced.

To verify with a non-Custom Progress bar applets
- repeat the above steps with Test case 2 (from below) and observe that the applet re-loads well.


TESTCASE:
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Test case 1: http://sqindia.india/disk17/deployment/subrata/adhoc/testcode/CustomProgress/SimpleTest.html
Test case 2: http://sqindia.india/disk17/deployment/subrata/adhoc/testcode/JNPLTest/JNLPViewerApplet.html