RoiManager issue

[Peter Mc]

Hi everyone;

I am using the ROI Manager for a plugin I'm working on.
I create a Roi Manager and when I close it (manually or by close() function) I get an exception (see below) and I cannot use the Roi Manager properly while the application is running.

I have been testing and the exception appears anytime a plugin try to close the Roi Manager.

What am I doing wrong?


Exception in thread "Run$_AWT-EventQueue-0" java.lang.IllegalArgumentException: null source
        at java.util.EventObject.<init>(EventObject.java:56)
        at java.awt.AWTEvent.<init>(AWTEvent.java:337)
        at java.awt.event.InvocationEvent.<init>(InvocationEvent.java:224)
        at java.awt.event.InvocationEvent.<init>(InvocationEvent.java:188)
        at java.awt.event.InvocationEvent.<init>(InvocationEvent.java:150)
        at sun.awt.X11.XBaseMenuWindow.dispose(XBaseMenuWindow.java:907)
        at java.awt.MenuComponent.removeNotify(MenuComponent.java:310)
        at java.awt.Menu.removeNotify(Menu.java:198)
        at java.awt.Component.removeNotify(Component.java:6980)
        at java.awt.Container.removeNotify(Container.java:2816)
        at java.awt.Window.removeNotify(Window.java:782)
        at java.awt.Frame.removeNotify(Frame.java:1041)
        at java.awt.Window$1DisposeAction.run(Window.java:1190)
        at java.awt.Window.doDispose(Window.java:1205)
        at java.awt.Window.dispose(Window.java:1147)
        at ij.plugin.frame.PlugInFrame.close(PlugInFrame.java:41)
        at ij.plugin.frame.RoiManager.close(RoiManager.java:2009)
        at ij.plugin.frame.PlugInFrame.windowClosing(PlugInFrame.java:32)
        at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
        at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
        at java.awt.Window.processWindowEvent(Window.java:2051)
        at ij.plugin.frame.RoiManager.processWindowEvent(RoiManager.java:1620)
        at java.awt.Window.processEvent(Window.java:2009)
        at java.awt.Component.dispatchEventImpl(Component.java:4861)
        at java.awt.Container.dispatchEventImpl(Container.java:2287)
        at java.awt.Window.dispatchEventImpl(Window.java:2719)
        at java.awt.Component.dispatchEvent(Component.java:4687)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
        at java.awt.EventQueue.access$200(EventQueue.java:103)
        at java.awt.EventQueue$3.run(EventQueue.java:694)
        at java.awt.EventQueue$3.run(EventQueue.java:692)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
        at java.awt.EventQueue$4.run(EventQueue.java:708)
        at java.awt.EventQueue$4.run(EventQueue.java:706)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)