Question

I am facing this error while running my java application using Java Web Start. Although Application is running perfectly fine in eclipse and application is being loaded properly in Java web start as well. The code is trying to open a file chooser but unable to do that.

Exception in thread "AWT-EventQueue-0" java.lang.AssertionError
    at sun.awt.shell.Win32ShellFolder2$4.call(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2$4.call(Unknown Source)
    at sun.awt.shell.Win32ShellFolderManager2$ComInvoker.invoke(Unknown Source)
    at sun.awt.shell.ShellFolder.invoke(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2.getIShellFolder(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2.access$200(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2$2.call(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2$2.call(Unknown Source)
    at sun.awt.shell.Win32ShellFolderManager2$ComInvoker.invoke(Unknown Source)
    at sun.awt.shell.ShellFolder.invoke(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2.<init>(Unknown Source)
    at sun.awt.shell.Win32ShellFolderManager2.createShellFolderFromRelativePIDL(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2$11.call(Unknown Source)
    at sun.awt.shell.Win32ShellFolder2$11.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Answer 1

Ok So I just found the Answer to my own question. I have disabled the assertion in JNLP file and code started working perfectly fine.

I have changed

<j2se version="1.5+" java-vm-args="-esa -Xnoclassgc"/>

to

<j2se version="1.5+" java-vm-args="-dsa -Xnoclassgc"/>

Hope this will help others as well.