Open multiple Eclipse workspaces on the Mac

eclipse macos
Thilo picture Thilo · Sep 23, 2008 · Viewed 121.4k times · Source

How can I open multiple Eclipse workspaces at the same time on the Mac?

On other platforms, I can just launch extra Eclipse instances, but the Mac will not let me open the same application twice. Is there a better way than keeping two copies of Eclipse?

Answer

Milhous picture Milhous · Dec 22, 2008

This seems to be the supported native method in OS X:

cd /Applications/eclipse/

open -n Eclipse.app

Be sure to specify the ".app" version (directory); in OS X Mountain Lion erroneously using the symbolic link such as open -n eclipse, might get one GateKeeper stopping access:

"eclipse" can't be opened because it is from an unidentified developer.

Your security preferences allow installation of only apps from the Mac App Store and identified developers.

Even removing the extended attribute com.apple.quarantine does not fix that. Instead, simply using the ".app" version will rely on your previous consent, or prompt you once:

"Eclipse" is an application downloaded from the Internet. Are you sure you want to open it?

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