Upgrade existing Eclipse standard/classic to J2EE

go to the Help menu, choose Install New Software, and while Working With All Available Sites, choose the features you want from the Web, XML, Java EE and OSGi Enterprise Development category. If unsure, pick both the Eclipse Java EE Developer Tools and JST Server Adapters Extensions and proceed, allowing it to select dependencies for you.

For those certain that they only want to install selected parts of WTP, the Eclipse XML Editors and Tools selection is exactly as named while the Eclipse Web Developer Tools builds on that with HTML, CSS, and JavaScript tools, and supports deployable "static" web projects. The Eclipse Java Web Developer Tools adds support for JSP files (but not Java Servlets), and complete support for "dynamic" web projects requires the full Eclipse Java EE Developer Tools Feature.

See also

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