http://blog.chungkol.com/2014/02/download-crack-keygen-agile-greenhopper.html#comment-1390442295

THIS SOLUTION WORKS WITH VANILLA JIRA WITHOUT ANY OTHER CRACKS

Tested on jira 6.2.1 + agile 6.3.11.0 + windows 8.1 x86_64 + 2 cpu + 2GB ram: 
works with 
- atlassian-universal-plugin-manager-plugin-2.15.jar
- atlassian-extras-2.2.2.jar 
from keygen archive

1) download and install latest php in c:\php (x86 + thread safe + vc11)
2) unpack keygen in c:\atlassian-keygen-v2
3) download and install ms visual c++ 2012 runtime - update 4 (x86)
4) download and install java 32bit
5) set JAVA_HOME in system variables to directory where java was installed: c:\Program Files (x86)\Java\jre7
6) set JIRA_HOME tn system variables to directory where jira will store data: c:\jira\home
7) you need restart windows to get sys vars work
8) download https://s3.amazonaws.com/atlassian-download/atlassian-jira-6.2.1-bundle.zip
9) unpack atlassian-jira-6.2.1-bundle.zip to c:\jira
10) replace file atlassian-universal-plugin-manager-plugin-2.15.jar in archive c:\jira\atlassian-jira\WEB-INF\classes\atlassian-bundled-plugins.zip (remove original jar from archive and add new one) with te same file from keygen "cracked" directory
11) replace c:\jira\atlassian-jira\WEB-INF\lib\atlassian-extras-2.2.2.jar with file from keygen "cracked" directory
12) run c:\jira\start-jira.bat
13) wait until it will start work on localhost:8080
14) go to localhost:8080
15) proceed with new installation
16) when it will ask to type key select "i have key"
17) you will see your Server ID
18) copy server id and paste in c:\atlassian-keygen-v2\keys-examples\jira.txt (changing anything else is not required)
19) run in command line: c:\php\php.exe c:\atlassian-keygen-v2\atlassian-keygen.php -e c:\atlassian-keygen-v2\keys-examples\jira.txt
20) grab key from the next lines after Result title and use key to register agile
21) wait, jira will be restarted fully registered
22) go to system\add-ons
23) find agile on atlassian marketplace
24) click "buy"
25) agile add-on will be downloaded and installed
26) go to manage addons web page
27) agile add-on not linked to server id, so you can generate key directly from examples
28) run in command line: c:\php\php.exe c:\atlassian-keygen-v2\atlassian-keygen.php -e c:\atlassian-keygen-v2\keys-examples\agile-2.txt
29) grab key from the next lines after Result title and use to update license key for add-on
30) that's it: latest jira + agile