Sorry for the lack of information in the question and thank you for the information and pointer.
The issue was caused by the version of the jdk I was using. Upgrading the Java version from 1.6.0_03 to 1.6.0_33 resolves the error and I can now manage my plugins,
Thanks again for your help,
It's very difficult to say what is causing this issue solely from that error message in isolation, however the error does appear to be suggesting there is an issue with a plugin version so you should check that all your plugins have been updated and are compatible with your current cersion since your upgrade. You can do this by following the instructions on this page: https://confluence.atlassian.com/display/JIRA/Managing+JIRA%27s+Plugins#ManagingJIRA%27sPlugins-UpdatingaJIRAPlugin
If this doesn't resolve your issue then you will either need to provide more information about the issue or create a ticket with Support, (referencing this Answer), and let us investigate the problem.
All the best,
Hey everyone! My name is Sarah Schuster, and I'm a Customer Success Manager in Atlassian specializing in Jira Software Cloud. Over the next few weeks I will be posting discussion topics (8 total) to ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs
We're bringing product updates and pro tips on teamwork to ten cities around the world.Save your spot