Often we come across scenarios where we need to add a new link in JIRA under various places in the user interface. The first thing that comes to mind is "Oh I need to modify the jsps and that means my upgrades are going to be a nightmare"! But hang on, JIRA is far better than you think!
Adding a link is JIRA can be achieved pretty easily by writing a web-section and/or web-item plugin module. And that doesn't involve writing any programming languages, including JAVA.