The Eclipse Foundation operates a website online, referred to as Eclipse Marketplace, that gives a listing of Eclipse-based solutions. Click on the I accept the terms and then click on Finish. Marketplace Client is a rich client solution for installing answers listed on Eclipse Marketplace immediately from an Eclipse Installation. Wait for some time, then a dialog box will appear. Try doing a completely fresh Eclipse install and then install only the minimum number of plugins needed. Follow the below steps to install TestNG from the Eclipse marketplace: Go to the Help menu in the Eclipse IDE and click on Eclipse Marketplace. Installation Tips: Eclipse doesn't always upgrade from previous versions very well, leading to unexplainable problems. Search for the desired plugin and click the 'Install' button. Installing this plug-in is easy and would take only around 5-10 minutes. From the main Eclipse menu, go to Help/Eclipse Marketplace. NOTES: Eclipse Kepler (4.3) and newer versions already have Maven integration so you don’t need to install the plug-in for this version of Eclipse.The most popular Maven plug-in for Eclipse Java EE IDE is called Maven Integration for WTP (m2e-wtp).
This tutorial presents a step-by-step guide about how to install Maven plugin (m2e) for an existing Eclipse version (Juno 4.2 and older). For Mac - IntelliJ IDEA > Preferences > Plugins > Marketplace > Search for Rainbow Brackets > Install Plugin > Restart IntelliJ IDEA.