How do I debug a Java Web start application?

• Java

I have a Java Web start application that starts from a real-time site by downloading custom JNLP files

The problem is that once the Java Web start application is loaded, the application exits without warning I know the certificate is OK because when I enable the "show site certificate from server, even if it is valid" option from Java settings, it displays the corresponding message

I tried to enable all debugging settings from Java settings ("enable tracing", "enable logging", "show applet lifecycle exceptions") and the Java console, but there was no luck cache problem

Can anyone with more experience in Java Web start development / debugging provide any tips?

Solution

You can start the Web Start program from the command line using javaws and pass the JVM option using the - J flag

Connect to the process using the debugger: http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/troubleshooting.03.06.html

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