I have a play2 java project. When I use idea ultimate, there is always red highlighting of reverse routing calls from within a controller. Not only that, but the calls to the views are highlighting saying that the template expects scala list rather than java list.
When I open the same project in idea community, all the red highlighting is gone - as i would expect as SBT compiles everything fine.
Another thing is that the making the project in the ultimate edition takes longer - noticeably so.
I am running IDEA 14.1.3 with Scala plugin 1.5, Java 1.8.0_45 on MacOSX 10.10.3.