Note: i am not being negative over here just a bit naughty :)
Relax guys!! i am not actually hacking it out... i have just exploited one of the processes and what purpose it solves.. well it depends...
One can reuse expired evaluation version of JIRA any number of time and successfully running this hack will again grant you one cycle of 30 days evaluation
(this will do work till the time real guys didn't come to know about it :)) )
so now what if you evaluated jira and you liked it but not want to pay (but guys, developers too are human beings so don;t make it a habit :)) )
Try this work around.
Even if everything is hanged up at your local jira server, it provides the facility to get the backup in the from of xml(a single file) and system even provides a zipped version too
so the prerequisite is to have a backup file from the jira running machine and unzip to get the backup XML, and then follow the following steps..
Step 1: Get a JIRA back up and un-compressed it to get the real xml if was compressed.
Step 2: In the XML search in the lines which contains following strings.
Clear their values.. and the lines should look something like
<OSPropertyString id="10013" value=""/>
<OSPropertyString id="10014" value=""/>
Step 3: Now in the out of date jira... go in section for "Restore data from xml"
Step 4: Provide the modified jira backup file path and jira location file path and <don't> enter any licence........ and click "restore"
Step 5: It will give "JIRA Access Constraints" on the page with some details like
< 2008-11-12 17:47:07 error Invalid license key specified. >
Step 6: Click the "Edit License" link, which will take you to "Confirm License Update" page
Step 7: At the bottom of page there is an statement "You can generate an evaluation license instantly online" click the "online" link word which will take you to http://www.atlassian.com
Step 8: Now provide the atlassian credentials i.e email and password.... and log in
Step 9: You will land in "Generate Evaluation License" click the Generate button and copy the generated "License Key" from the text area
Step 10: Update "License Key" so generated in "Confirm License Update" page and click proceed
if everything remains intact you are done
and now restart the server and you are again up for 30 days