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Bug 268278

Summary:	NullPointerException at org.netbeans.editor.ext.ToolTipSupport.ensureVisibility
Product:	cnd	Reporter:	tbrunhoff <tbrunhoff>
Component:	Debugger	Assignee:	Maria Tishkova <mromashova>
Status:	VERIFIED FIXED
Severity:	normal
Priority:	P3
Version:	Dev
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	226503
Attachments:	stacktrace

Description tbrunhoff 2016-09-29 21:01:25 UTC

This bug was originally marked as duplicate of bug 190136, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.

Build: NetBeans IDE Dev (Build 201609190002)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.45-b02, Java(TM) SE Runtime Environment, 1.8.0_45-b14
OS: Linux

User Comments:
tbrunhoff: stepping in the debugger.




Stacktrace: 
java.lang.NullPointerException
   at org.netbeans.editor.ext.ToolTipSupport.ensureVisibility(ToolTipSupport.java:825)
   at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:375)
   at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:331)
   at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:290)
   at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:280)
   at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:276)

Comment 1 tbrunhoff 2016-09-29 21:01:26 UTC

Created attachment 162278 [details]
stacktrace

Comment 2 Martin Entlicher 2016-10-03 14:54:15 UTC

This is a result of a race condition. See #190136 - the UI code needs to be called in AWT thread.

Comment 3 Maria Tishkova 2016-12-08 08:58:21 UTC

fixed on enum
changeset:   313801:e21148930fc1
branch:      release82
tag:         tip
parent:      313789:b46bfd32cc57
user:        Maria Dalmatova <mromashova@netbeans.org>
date:        Thu Dec 08 11:57:20 2016 +0300
summary:     fixed bz#268278 - NullPointerException at org.netbeans.editor.ext.ToolTipSupport.ensureVisibility

Comment 4 Quality Engineering 2016-12-10 02:59:29 UTC

Integrated into 'main-silver', will be available in build *201612100001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)

Changeset: http://hg.netbeans.org/main-silver/rev/f1119d5d9de9
User: Maria Dalmatova <mromashova@netbeans.org>
Log: fixed bz#268278 - NullPointerException at org.netbeans.editor.ext.ToolTipSupport.ensureVisibility
(transplanted from e21148930fc1f02bb3b23d1b3118ed9ebaead855)

Comment 5 soldatov 2016-12-12 09:06:49 UTC

I can't reproduce this random exception in internal NetBeans 8,2 patch 1 build.