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[ BUILD # : 6.8 M1 ] [ JDK VERSION : 1.6.* ] I sent this to the Platform mailing list, but adding it here to be captured. This one may be hard to re-produce. Porting my app 6.8 M1 I got an issue with the toolbar now being 2 rows of icons. When drag&drop the "Cut&Paste" and then the "Undo&Redo" toolbar to the upper row I got the following IllegalComponentStateException - maybe it gives any a hint. I did this on a Solaris x86 box. java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:1943) at java.awt.Component.getLocationOnScreen(Component.java:1917) at org.netbeans.core.windows.view.ui.toolbars.ToolbarConfiguration.maybeA ddEmptyRow(ToolbarConfiguration.java:304) at org.netbeans.core.windows.view.ui.toolbars.DnDSupport.dragMouseMoved(D nDSupport.java:361) at java.awt.dnd.DnDEventMulticaster.dragMouseMoved(DnDEventMulticaster.ja va:107) at java.awt.dnd.DnDEventMulticaster.dragMouseMoved(DnDEventMulticaster.ja va:107) at java.awt.dnd.DragSource.processDragMouseMoved(DragSource.java:761) at java.awt.dnd.DragSourceContext.dragMouseMoved(DragSourceContext.java:4 15) [catch] at sun.awt.dnd.SunDragSourceContextPeer$EventDispatcher.run(SunDragSource ContextPeer.java:428) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.ja va:117) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThrea d.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.j ava:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThrea d.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Following was added by Tim Boudreau via the dev e-mail list: " Looks like a bug in the new implementation of toolbars in 6.7 - please file it w/ exact steps to reproduce. This sort of bug is fairly easy to cause - one mouse event handler removes the event recipient from its parent, but does not consume the event; the next mouse event handler tries to do some innocuous thing that requires the component bounds. It's bewildering because the entire stack trace is often inside Swing code (the offending call can sometimes be in a UI delegate or similar) - these sorts of bugs also sometimes surface only when the look and feel has been changed during runtime (UI delegate listeners are now called *after* the program's listeners rather than *before*). In this case, it looks like org.netbeans.core.windows.view.ui.toolbars.DnDSupport.dragMouseMoved(DnDSupport.java:361) should simply do something like if (!((Component) evt.getSource()).isDisplayable()) { return; } to fix the problem. isDisplayable() will return false if getParent() == null, so that should do the trick. " To reproduce I may be tricky, since it happens when I start my RCP app. I have my own drop-down action icon added to the toolbar and when the RCP app starts the toolbar is 2 icons wide. The "Cut&Past" and the "Undo&Redo" toolbars are at the second row. The error happened when I dragged the "Cut&Past" up to the upper row and then when I dragged the "Undo&Redo" up -> Error. That was also the ;ast toolbars in the second row when it happened.
Created attachment 87505 [details] Toolbar as in 6.5
Created attachment 87506 [details] Toolbar as in 6.8 with the 2-rows wide Icon space
Created attachment 101725 [details] double sized toolbar on 6.10-m1
I have just attached this double sized toolbar issue as I see it on the latest 6.10-m1 build. If you have any ideas what may be causing this please let me know. This is happening when I launch my app. It is working fine on 6.5. It was introduced in 6.7, was still there in 6,8 and 6.9 and now also in 6.10. Workaround: Drag all toolbars to the 2nd row and the first row will go away resulting in the usual one-row toolbar list. .. strange ... Anyhow - thanx for the upcoming 6.10 release - this is looking very promising