This issue was reported manually by Chiana.
It already has 6 duplicates 


Build: NetBeans IDE Dev (Build 201012040001)
VM: Java HotSpot(TM) Client VM, 17.1-b03, Java(TM) SE Runtime Environment, 1.6.0_22-b04
OS: Windows Vista

User Comments:
GUEST: writing scala

Chiana: Was trying to use ctl-shi-I to make import from an other package where the classname is the same as the current name.
That is;
class 1 is : service.DialogClasses.Virus (This is the one beeing edited)
class 2 is: ent.ServRadStructs.Virus (This is the one that the reference should go to)

So I typed "public class Virus extends XPanel<Virus>
and hit ctl-shi-I hoping for the list of classes but it made a stack overflow instead,

Also, there is one more error that popped up while reporting this, it seems similar if not same...

boske3: Try to open application.properties file




Stacktrace: 
java.lang.StackOverflowError
   at java.io.Win32FileSystem.resolve(Win32FileSystem.java:237)
   at java.io.File.<init>(File.java:312)
   at org.netbeans.modules.masterfs.filebasedfs.naming.FileName.getFile(FileName.java:109)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.canWrite(FileObj.java:212)
   at org.openide.text.DataEditorSupport$Env.readOnlyRefresh(DataEditorSupport.java:909)
   at org.openide.text.DataEditorSupport$Env.access$500(DataEditorSupport.java:676)