Eclipse cannot install glassfish tools. under Oracle folder of server there is only options for Webllogic and cloud, The glassfish option appears only ONE time whe I first t
Go to Help > Install New Software...
Help > Install New Software...
Add the GlassFish Tools Update Site
http://download.eclipse.org/glassfish-tools/1.0.0/repository
as repository (or add the URL under Work with: directly) and install the tools via the wizard.
Work with: