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Bug 195954

Summary:	Ghost image of dragged window doesn't appear
Product:	platform	Reporter:	ttokoly
Component:	Window System	Assignee:	Stanislav Aubrecht <saubrecht>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	anebuzelsky, mmirilovic, musilt2
Priority:	P2
Version:	7.0
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:

Description ttokoly 2011-02-24 16:28:57 UTC

1. Run IDE
2. Open some window e.g. Main menu Window -> Files
3. Drag the header of opened window to some other area
4. Ghost Image should appear, but that doesn't happened

Product Version: NetBeans IDE Dev (Build 201102240001)
Java: 1.7.0-ea; Java HotSpot(TM) Client VM 21.0-b02
System: Linux version 2.6.32-28-generic running on i386; UTF-8; en_US (nb)

Note: In jdk1.6.0_24 works fine.

Comment 1 Marian Mirilovic 2011-06-08 18:47:04 UTC

Not a stopper for 7.0.1, but clearly this is a regression in comparison to running NB on JDK 6 (tested the build 20110608 & JDK7b145)

Comment 2 Stanislav Aubrecht 2011-06-09 09:23:38 UTC

i don't think this is fixable in netbeans. we use JNA library to access some native os features so it's either a bug in JDK 7 or we need to update JNA library (or both)

Comment 3 Stanislav Aubrecht 2011-06-10 09:39:22 UTC

it seems the layout of binary files in JDK 7 distribution has changed on linux as i'm getting the following exception from JNA lib:

INFO [org.netbeans.core.windows.view.dnd.DragAndDropFeedbackVisualizer]
java.lang.UnsatisfiedLinkError: libjawt.so: cannot open shared object file: No such file or directory
	at com.sun.jna.Native.getWindowHandle0(Native Method)
	at com.sun.jna.Native.getComponentID(Native.java:277)
	at com.sun.jna.platform.WindowUtils$X11WindowUtils.getDrawable(WindowUtils.java:1296)
	at com.sun.jna.platform.WindowUtils$X11WindowUtils.access$800(WindowUtils.java:1117)
	at com.sun.jna.platform.WindowUtils$X11WindowUtils$2.run(WindowUtils.java:1316)
	at com.sun.jna.platform.WindowUtils$NativeWindowUtils$2.hierarchyChanged(WindowUtils.java:365)
	at java.awt.AWTEventMulticaster.hierarchyChanged(AWTEventMulticaster.java:498)
	at java.awt.Component.processHierarchyEvent(Component.java:6671)


even the latest version of JNA library doesn't handle this.

Comment 4 Marian Mirilovic 2011-06-10 11:47:53 UTC

.. so we need to at least file issue against JNA and add the issue number here.

Comment 5 ttokoly 2012-06-07 10:05:12 UTC

Doesn't work either in actual versions of NB, JDK and JNA library.

Product Version: NetBeans IDE Dev (Build 201206070001)
Java: 1.7.0_04; Java HotSpot(TM) Client VM 23.0-b21
System: Linux version 3.0.0-20-generic running on i386; UTF-8; en_US (nb)

JNA version 3.4.0

In JDK 6 still works fine.