Hello ,
I have vps ubuntu 12.04 , java 64 bit 1.7 oracle and jira 6.2.
When I ran it first time for installation then it ran and setup perfectly .
But when i tried to access it again after some time at http://xxxx:8080.. It is taking hell lot of time
and subsquently showing me error some plugins.
ERROR :
JIRA Startup Failed
The following plugins are required by JIRA, but have not been started:
- Gadget Directory Plugin (com.atlassian.gadgets.directory)
- Atlassian Navigation Links Plugin (com.atlassian.plugins.atlassian-nav-links-plugin)
- Atlassian JIRA - Plugins - Gadgets Plugin (com.atlassian.jira.gadgets)
I already increase time out to 300 .. but what the hell is happening 
Can you please tell me what is the problem ???
Jira 6.0.2 run perfectly on my ubuntu 32 bit system . What the hell problem is with this jira 6.2 on 64bit ?/