This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.

Bug 258556

Summary:	NullPointerException at javafx.embed.swing.JFXPanel.paintComponent
Product:	platform	Reporter:	athompson <athompson>
Component:	Window System	Assignee:	Stanislav Aubrecht <saubrecht>
Status:	RESOLVED WONTFIX
Severity:	normal
Priority:	P3
Version:	8.2
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	223216
Attachments:	stacktrace

Description athompson 2016-03-28 16:02:50 UTC

Build: NetBeans IDE Dev (Build 201603280001)
VM: Java HotSpot(TM) 64-Bit Server VM, 1.9.0-ea-b93, Java(TM) SE Runtime Environment, 1.9.0-ea-b93
OS: Mac OS X

User Comments:
athompson: deployed web app




Stacktrace: 
java.lang.NullPointerException
   at javafx.embed.swing.JFXPanel.paintComponent(JFXPanel.java:669)
   at javax.swing.JComponent.paint(JComponent.java:1056)
   at javax.swing.JComponent.paintChildren(JComponent.java:889)
   at javax.swing.JComponent.paint(JComponent.java:1065)
   at javax.swing.JComponent.paintChildren(JComponent.java:889)
   at javax.swing.JComponent.paint(JComponent.java:1065)

Comment 1 athompson 2016-03-28 16:02:52 UTC

Created attachment 159023 [details]
stacktrace

Comment 2 Martin Entlicher 2016-05-17 10:18:19 UTC

scenePeer is null, but there is a check for this value.
That means that someone had to call setEmbeddedScene() asynchronously, off the event thread. This might be a result of interference of two toolkits: AWT and FX.

Comment 3 Martin Entlicher 2016-05-17 11:43:39 UTC

https://bugs.openjdk.java.net/browse/JDK-8089841 is consistent with my findings.