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Bug 248505 - NullPointerException at org.netbeans.lib.editor.util.swing.DocumentUtilities.getMimeType
Summary: NullPointerException at org.netbeans.lib.editor.util.swing.DocumentUtilities....
Status: NEW
Alias: None
Product: third-party
Classification: Unclassified
Component: -- Other -- (show other bugs)
Version: 8.0
Hardware: All All
: P3 normal (vote)
Assignee: 280Z28
URL:
Keywords:
: 249902 (view as bug list)
Depends on:
Blocks:
 
Reported: 2014-11-07 23:24 UTC by ebakke
Modified: 2015-03-06 14:11 UTC (History)
2 users (show)

See Also:
Issue Type: DEFECT
Exception Reporter: 213276

Attachments
stacktrace (3.37 KB, text/plain)
2014-11-07 23:24 UTC, ebakke 		Details
stacktrace (3.37 KB, text/plain)
2015-02-06 04:06 UTC, Exceptions Reporter 		Details
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Description ebakke 2014-11-07 23:24:55 UTC 
Build: NetBeans IDE 8.0.1 (Build 201408251540)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.25-b02, Java(TM) SE Runtime Environment, 1.8.0_25-b17
OS: Mac OS X

User Comments:
ebakke: Editing a Java class while doing a build.




Stacktrace: 
java.lang.NullPointerException
   at org.netbeans.lib.editor.util.swing.DocumentUtilities.getMimeType(DocumentUtilities.java:851)
   at org.netbeans.modules.editor.NbEditorUtilities.getMimeType(NbEditorUtilities.java:284)
   at org.antlr.netbeans.parsing.spi.impl.CursorSensitiveParserTaskScheduler$CaretListenerImpl.caretUpdate(CursorSensitiveParserTaskScheduler.java:61)
   at javax.swing.text.JTextComponent.fireCaretUpdate(JTextComponent.java:397)
   at javax.swing.text.JTextComponent$MutableCaretEvent.fire(JTextComponent.java:4394)
   at javax.swing.text.JTextComponent$MutableCaretEvent.mouseReleased(JTextComponent.java:4450)
Comment 1 ebakke 2014-11-07 23:24:57 UTC 
Created attachment 150365 [details]
stacktrace
Comment 2 Milutin Kristofic 2015-02-04 11:06:08 UTC 
*** Bug 249902 has been marked as a duplicate of this bug. ***
Comment 3 Exceptions Reporter 2015-02-06 04:06:21 UTC 
Created attachment 151848 [details]
stacktrace

Added jUnit test and it said test root folder doesn't exist.
Comment 4 Svata Dedic 2015-03-06 14:11:41 UTC 
I suspect that the error is caused by antlrworks2 module (http://plugins.netbeans.org/plugin/53652/antlrworks-2), which seems to send null document to NB APIs.

Reassinging to the module owner.