Running the command ./gradlew eclipse generates .project and .classpath files for all projects. But it also generates these files for the root project folder and the connect subfolder that holds the 4 connector projects even though these folders are not actual project folders.
The unnecessary connect project is benign, but the unnecessary kafka project created for the root folder has a side effect. The root folder has a bin directory that holds some scripts. When a Clean all projects is done in Eclipse, it cleans up the scripts in the bin directory. These have to be restored by running git checkout -- <files>. This same could become a problem for the connect project as well if tomorrow we place some files under connect/bin.