eirikbakke opened a new pull request #2980:
URL: https://github.com/apache/netbeans/pull/2980
On Windows, when dragging window system tags with the mouse, the following
spurious error message may appear on the console running the NetBeans IDE or a
NetBeans Platform application:
```
java.lang.UnsupportedOperationException: Set sun.java2d.noddraw=true to
enable transparent windows
at
com.sun.jna.platform.WindowUtils$W32WindowUtils.setWindowAlpha(WindowUtils.java:796)
at
com.sun.jna.platform.WindowUtils.setWindowAlpha(WindowUtils.java:1940)
[catch] at
org.netbeans.core.nativeaccess.NativeWindowSystemImpl.setWindowAlpha(NativeWindowSystemImpl.java:88)
at
org.netbeans.core.windows.view.dnd.DragAndDropFeedbackVisualizer.createDragWindow(DragAndDropFeedbackVisualizer.java:89)
at
org.netbeans.core.windows.view.dnd.DragAndDropFeedbackVisualizer.start(DragAndDropFeedbackVisualizer.java:110)
at
org.netbeans.core.windows.view.dnd.TopComponentDragSupport.doStartDrag(TopComponentDragSupport.java:402)
at
org.netbeans.core.windows.view.dnd.TopComponentDragSupport.eventDispatched(TopComponentDragSupport.java:327)
at
java.desktop/java.awt.Toolkit$SelectiveAWTEventListener.eventDispatched(Toolkit.java:2194)
```
This patch avoids the message. The patch was tested on both Windows and
MacOS, and the tab preview overlay is still translucent as intended.
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