Quando tento abrir um JInternalFrame dentro do um JDesktopPane recebo esse erro, nunca vi isso antes, em outro sistema que tenho bem semelhante o erro não acontece.
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.Win32ShellFolder2.getIShellFolder(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.Win32ShellFolder2.<init>(Unknown Source)
at sun.awt.shell.Win32ShellFolderManager2.createShellFolderFromRelativePIDL(Unknown Source)
at sun.awt.shell.Win32ShellFolder2$12.call(Unknown Source)
at sun.awt.shell.Win32ShellFolder2$12.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Alguém tem alguma idéia do que pode ser?
