Delete temporary Internet files for Java
In the Java control panel on windows, there is the setting of "temporary Internet File", in which all applet and webstart contents are cached For some users of our application, this cache does not work properly. They need to delete all files through the control panel before our webstart application is updated correctly
Ignoring the other implications of doing so, in any case, we can programmatically delete the temporary file cache when we update, preferably through Java without relying on any batch file or windows hacker quackery?
Solution
For web launch applications (such as the one you're talking about):
javaws -uninstall
You can also uninstall a specific web start application by providing the JNLP URL on the - unintall command line
When I encountered this problem, the root cause was that the web server mistakenly applied an incorrect expiration date to the jar file of Web start When I use the Apache httpd configuration to correct this problem, I no longer always update the web start application It's worth a try