The /usr/bin/efj script, which is provided by eclipse-jdt, has its permissions set to -rw-r--r-- (exec flags are not set). This means that efj can't be executed: $ efj sh: /usr/bin/efj: Permission denied
eclipse-4.2.0-0.15.I201204171000.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/eclipse-4.2.0-0.15.I201204171000.fc17
Package eclipse-4.2.0-0.15.I201204171000.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing eclipse-4.2.0-0.15.I201204171000.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-6220/eclipse-4.2.0-0.15.I201204171000.fc17 then log in and leave karma (feedback).
eclipse-4.2.0-0.16.I201204171000.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/eclipse-4.2.0-0.16.I201204171000.fc17
eclipse-4.2.0-0.17.I201204171000.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/eclipse-4.2.0-0.17.I201204171000.fc17
eclipse-4.2.0-0.17.I201204171000.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.