Maven by default compiles code with a lower compiler version than 1.5 which has support for generics.
Today I was programming along when suddenly a project that has been compiling for a while suddenly stopped compiling (using Maven + Eclipse) and Maven started griping about the project code's inclusion of generics when this is not supported prior to JDK 1.5. Hmm. I had this working before so why did it suddenly start failing? Who knows.
So I go in and reset the project to use the 1.6 compiler by right clicking on the project node in Eclipse, choosing compiler and changing the settings.
No dice.
I then right clicked on the project node, chose Maven (I'm using Maven plugin as described in another post) and choose "Update Project Configuration". Right click on the pom, choose Run As and Maven Install...well then I started getting compiler errors in Eclipse I wasn't getting before. I went to one of the errors, right clicked and told it to change the project to use JDK 1.5 which supports generics.
Ok now it compiles...but now the setting changes I just made say 1.5 instead of 1.6. Why didn't it work when I set the project to use JDK 1.6? So I go back to the project node, change the compiler setting to JDK 1.6. Still compiles. That's good.
Then I go right click and choose Maven and Update Project Configuration. Running Maven Install still works.
OK great. Whatever.
