This bug was originally marked as duplicate of bug 192504, 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 201101040001)
VM: Java HotSpot(TM) Client VM, 17.1-b03, Java(TM) SE Runtime Environment, 1.6.0_22-b04
OS: Linux

User Comments:
GUEST: Adding a new js file

GUEST: I just create a new JFrame file

melque: esperando intelisence

GUEST: saved, expected it to upload to remote server

GUEST: editing java in osgi bundle project

theradman: editing files .. cutting and pasting

GUEST: just scroll up/down the file

poloche: programin in php whit  zend framework

GUEST: .

sj-nb: during scrollin in persistence.xml visual editor

Chiana: Wasn't doing anything special, just editing a new class adding some fields

Note: There is an other error just occured when reporting this, will report that too shortly

jocke: edited persistence.xml

GUEST: binding database

GUEST: typing in a javascript file

pgrimm: I was copying an array from one file and CTRL-TABed to the destination file to paste the code.

Pasting the code worked but was followed by that error.

Both files are php files in a Yii Framework.

jirka_x1: Changed a method name. (intiZoomProps -> initZoom)

GUEST: Removing a source directory with 3 files inside.

GUEST: just started happening

GUEST: Copying text from one tab. I had just clicked Ctrl+C and then switched tabs.

GUEST: Just edit my php code

GUEST: Criando um arquivo XML

GUEST: switching bwetween tabs

rkamradt: opening JPA persistence unit in xml mode

Chiana: Was just editing, correcting some classnames after refactor->rename

AIML_Engr: Editing PHP file

GUEST: Using autocomplete for background property in css file , hit the : (doule dots ) key

paolosca: Uploading a php file with sftp while editing another (past and copy entire file content into another)

GUEST: Type 'fnc' and press 'Tab'

GUEST: searched in files, then deleted some files and error happened when tried to close the search result tab

paolosca: Hit ctrl+shift+enter (I made the shortcut for my convenience) to upload the php file I'm currently editing.

GUEST: typing code - static void main..

melque: tentando salvar arquivo

morganizeit: Editing xml file in text mode.

alanobject: This occured just after creating a persistence unit in my web application with the wizard.

GUEST: Im editing a php file in a Joomla 1.5 framework

rudyment: Exception occured during comparation of two files in a dif-Window and modification of the right one.

rudyment: I compared two files which differs in trailing spaces. So I opened both compared files, erase the trailing spaces and returned into the dif-window. After returning the exception occured.

GUEST: cut 'n' paste code

leiby: saving an xml file

tcsizmadia: Renamed a PHP file

GUEST: setting type for method parameter

morganizeit: Editing xml file in text editor.

GUEST: Editing php wordpress template with HTML 5 content. 2 exceptions appear to have been thrown when I cmd+tabbed to Chrome and back.

abajja: Working with a JPanel.

AIML_Engr: Ran 'Fix Indentation'

GUEST: I opened an existing project, when this exception raised...

GUEST: Pasting in an open and closed tag into an xml document.

GUEST: Writing code

aldobrucale: Stopping a debugged application

GUEST: using sftp conexion




Stacktrace: 
java.lang.StackOverflowError
   at sun.nio.cs.UTF_8.updatePositions(UTF_8.java:58)
   at sun.nio.cs.UTF_8$Decoder.xflow(UTF_8.java:165)
   at sun.nio.cs.UTF_8$Decoder.decodeArrayLoop(UTF_8.java:241)
   at sun.nio.cs.UTF_8$Decoder.decodeLoop(UTF_8.java:305)
   at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:544)
   at java.lang.StringCoding$StringDecoder.decode(StringCoding.java:140)