This issue was originally marked as duplicate of issue 111722, that is already resolved. This issue is still valid, so this seems to be another issue, but it might be related.

Build: NetBeans IDE 6.5.1 (Build 200903060201)
VM: Java HotSpot(TM) Client VM, 14.0-b16, Java(TM) SE Runtime Environment, 1.6.0_14-b08
OS: Windows XP, 5.1, x86

User Comments:
GUEST: Opening a empty project, containing only a pom-file

GUEST: Started Ne

GUEST: Creating an Identity Manager's Workflow item from the templates

ppetitsm: Deploying a webapp containing jax-sw webservices

josin: I tried to open JSP file.

adam_myatt: opened a JSP page in the Source Editor.

ueda23: ??????????????????????Web??????????setCharacterEncoding??????????????????????????????

GUEST: Opening an Identity Manager IDE component.

josin: I just opened file.

josin: I have opened 2 jsp files from JSF framework.

GUEST: Opening a project

adam_myatt: opened a web project

possel: Attempted to open an newly created Java project involving WSDL web services

josin: I just opened jsp file.

josin: I tried to open JSP file.

josin: I just closed some jsp files.

GUEST: setting up a name of label containing html code

josin: I tried to open JSP file from find panel.

GUEST: Started web server

josin: I just open jsp file.

GUEST: Creating JAX-WS client stub



Stacktrace: 
java.lang.StackOverflowError
        at java.net.URI$Parser.charAt(URI.java:2837)
        at java.net.URI$Parser.scan(URI.java:2956)
        at java.net.URI$Parser.checkChars(URI.java:2980)
        at java.net.URI$Parser.parseHierarchical(URI.java:3066)
        at java.net.URI$Parser.parse(URI.java:3014)
        at java.net.URI.<init>(URI.java:663)