New install of Eclipse Mars.1, install codename one from market place, new install of Java 1.8 running on OSX 10.9.4.
Eclipse and the project itself are set to use Java 1.8 for all compilations, I also changed the settings in the build.xml to set 1.8 as the version to use.
When I try to add a gui builder page by right clicking on the project title and selecting "New/Other" and selecting Gui Builder, then next & finish I get the error.... '<>' operator is not allowed for source level below 1.7.
Searched Google for the error and nothing related to Codename one.
Any help would be greatly appreciated.