This issue was reported manually by mmirilovic.
It already has 27 duplicates 


Build: NetBeans IDE 6.8 (Build 200912041610)
VM: Java HotSpot(TM) Client VM, 14.3-b01, Java(TM) SE Runtime Environment, 1.6.0_17-b04
OS: Windows Vista

User Comments:
GUEST: Subversion checkout then automatically scanned the project.  Then I set it as main project and noticed this error.

GUEST: Opening and closing Tools > Options dialog. No changes made to settings.

aberryjr: Attempting to build a Maven project

herry: open report

GUEST: Dialog Fonts & Colors

GUEST: Changing various settings in Tools > Options dialog. Major changes involve adding external browsers aside from defaults Internet Explorer, and Firefox.

funkalee: I was doing a simple helloworld in a python project
content of message.log


-------------------------------------------------------------------------------
>Log Session: Friday, February 19, 2010 10:11:42 PM CET
>System Info: 
  Product Version         = NetBeans IDE 6.8 (Build 200912091457) (#ec9be6a6486c)
  Operating System        = Linux version 2.6.31-19-generic running on amd64
  Java; VM; Vendor        = 1.6.0_15; Java HotSpot(TM) 64-Bit Server VM 14.1-b02; Sun Microsystems Inc.
  Runtime                 = Java(TM) SE Runtime Environment 1.6.0_15-b03
  Java Home               = /usr/lib/jvm/java-6-sun-1.6.0.15/jre
  System Locale; Encoding = fr_FR (nb); UTF-8
  Home Directory          = /home/funkalee
  Current Directory       = /home/funkalee
  User Directory          = /home/funkalee/.netbeans/6.8
  Installation            = /data/app/netbeans/6.8/nb6.8
                            /data/app/netbeans/6.8/ergonomics2
                            /data/app/netbeans/6.8/ide12




Stacktrace: 
java.lang.NullPointerException
   at org.netbeans.modules.rwaccess.StatusBarSwitcher.removeWatchedElementComponent(StatusBarSwitcher.java:88)
   at org.netbeans.modules.rwaccess.StatusBarElementProvider.propertyChange(StatusBarElementProvider.java:40)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at org.netbeans.api.editor.EditorRegistry.fireEvents(EditorRegistry.java:504)
   at org.netbeans.api.editor.EditorRegistry$AncestorL$1.actionPerformed(EditorRegistry.java:684)
   at javax.swing.Timer.fireActionPerformed(Timer.java:271)