This bug was originally marked as duplicate of bug 237243, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.

Build: NetBeans IDE 8.0.2 (Build 201411181905)
VM: Java HotSpot(TM) Client VM, 24.51-b03, Java(TM) SE Runtime Environment, 1.7.0_51-b13
OS: Windows 7

User Comments:
shaile_martin: eoror

GUEST: Updated javascript libraries during Cordova project wizard
Cancelled the wizard while the javascript library update was running
Then, when it was finished, tried to create a Cordova application

GUEST: many times i restart the system and also i have mininum projects only o net beans. the cannot run. how to solve this problem.

GUEST: shit performance after being open for a long time with large projects. Switching between files caused temporary hanging, typing was sluggish. Finally completely non-responsive so I gave up. Guess I'll wait another 5 minutes for my projects to open AGAIN.

GUEST: The program just hung and was unresponsive.

GUEST: ctrl+a in a rather big file (eg 7000 lines), and then ctrl+v the same amount over it

GUEST: out of memory occured. PC has 16gb of available ram

GUEST: unknown error

GUEST: Updated file (which created conflicts) and program froze.

dancchamm: Netbeans had become impossibly slow.  It took many seconds when typing in HTML or CSS for the options to be echoed




Stacktrace: 
java.lang.OutOfMemoryError: Java heap space
   at java.lang.Class.getDeclaredMethods0(Class.java:0)
   at java.lang.Class.privateGetDeclaredMethods(Class.java:2531)
   at java.lang.Class.getMethod0(Class.java:2774)
   at java.lang.Class.isCheckMemberAccessOverridden(Class.java:2214)
   at java.lang.Class.checkMemberAccess(Class.java:2233)
   at java.lang.Class.newInstance(Class.java:330)