I’ve run into this one a few times on Grails 1.3.x, and every time I have to go googling to sort it out – it’s time to write it down to speed up my Google searches!
The error I end up with is typically something like:
java.lang.LinkageError: loader constraint violation: loader (instance of <bootloader>) previously initiated loading for a different type with name...
I mostly use IntelliJ for all my Grails dev work, but every now and then I end up doing some quick work with the Groovy and Grails TextMate bundles on Windows. The e text editor for Windows can read Textmate bundles, so I can enjoy all the handle snippets and colouring that the bundles provide.
The recent copies of the bundles hit a snag on Windows, however, since they use Windows reserved filename...