other potential solutions are these: When downloading all the Eclipse/Java parts, be sure to save and unpack to an HFS+ partition You'll see a window like this try some of the suggestions here: my eclipse stopped working today especially using terminal to run. Now you're ready to download and install the newest version of Eclipse. If you have an Eclipse icon in your dock, remove it from the dock.
You'll a folder named eclipse in there drag the eclipse folder to the Trash. One way to get there is, from the Finder, type command-shift-A. This free Mac application was originally designed by The Eclipse Foundation Go to your Applications folder. This Mac download was scanned by our antivirus and was rated as safe. This can be set in Preferences > General > Workspace The common filenames for the program's installer are eclipse-standard-luna-r-macosx-cocoa-x86_64.tar.gz, or etc. In addition Eclipse instance icons get a badge with the workspace name. A little utility for macOS that adds a Open Workspace menu entry which when activated opens the selected workspace in a new Eclipse instance.
Go to the download folder, you would find a file named eclipse-java-mars-2-macosx-cocoa-x86_64.tar (the file name may be different based on the version you download but it should be a tar file starting with word eclipse) External Install Button.