This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.

Bug 201692

Summary:	NetBeans won't start after changing jdkhome from JDK7 to JDK6
Product:	connecteddeveloper	Reporter:	Vladimir Riha <vriha>
Component:	Bugzilla	Assignee:	Tomas Stupka <tstupka>
Status:	VERIFIED FIXED
Severity:	normal	CC:	mmirilovic, vriha
Priority:	P1
Version:	7.1
Hardware:	PC
OS:	Windows 7
Issue Type:	DEFECT	Exception Reporter:
Attachments:	log

Description Vladimir Riha 2011-09-06 14:44:52 UTC

Created attachment 110433 [details]
log

Steps to reproduce:
- have jdk6 & jdk7 installed on your system
- install PHP bundle from trunk - NetBeans IDE Dev (Build 201109040600) and select jdk7 to be used during the installation
- start NetBeans, create PHP project, close NetBeans
- change jdk in netbeans.conf to jdk6
- start NetBeans
=> NetBeans won't start and exception is shown (see log)

If I switch back to jdk7, it works fine again. If I don't want to switch, I had to use new user dir and then NetBeans will work again with jdk6.



Product Version: NetBeans IDE Dev (Build 201109040600)
Java: 1.7.0; Java HotSpot(TM) Client VM 21.0-b17
System: Windows 7 version 6.1 running on x86; Cp1252; en_US (nb)

Comment 1 Jaroslav Tulach 2011-09-12 13:40:35 UTC

reproduced on build 201109040600

Comment 2 Jaroslav Tulach 2011-09-12 14:01:11 UTC

Caused by duplicated singleton: org.eclipse.osgi from Netbinox and additional one provided by Mylyn.

Comment 3 Jaroslav Tulach 2011-09-12 14:06:38 UTC

Fixed at least in revision
http://hg.netbeans.org/main-golden/rev/c4d262f630a7
probably sooner.

Comment 4 Vladimir Riha 2011-09-13 06:32:59 UTC

verified