can't hide Fullscreen icon on JFrame on OpenJDK7 b218

[Tobias Bley]

Hi,

In OpenJDK7 I can't hide the fullscreen icon shown in the right corner by default. When I press the fullscreen icon the Java application freezes. So I tried to hide the icon using the FullScreenUtilities-Class or native code. But it's not possible to hide the fullscreen icon in OpenJDK7, in JDK6 it works.

The difference between both JDK versions is the type of the main window:

When I call the following native code, I'll get the following results:

NSWindow *mainWindow = [[NSApplication sharedApplication] mainWindow];

OpenJDK7: AWTWindow
JDK6: CocoaAppWindow

Is it a bug or how can I disable the fullscreen capability?

Best regards,
Tobi