How can I run Eclipse on OS X?

Run /usr/libexec/java_home -V to find the location of an installed JDK.
To launch Eclipse from Finder, follow the instructions at http://stackoverflow.com/a/25486012/130224 to set the -vm flag of Eclipse.app/Contents/Info.plist.
To run Eclipse from the command line, run Eclipse.app/Contents/MacOS/eclipse.

References