I know what assembly line work is, I did it once during my engineering college days for a start up. And yes I did it for a small company so we would generally test what we assembled.
>>That will give you a taste of how boring an assembly line is.
Trust me auto generating get/set methods, try/catch blocks, javadocs, mass refactoring, import/package statements, Generating design pattern templates and getting used often used Framework functions(And all this getting autocompleted) sounds very similar to writing 'The quick brown fox jumps over the lazy dog' many times.
This is true if somebody asks you to check if you are writing 'The quick brown fox jumps over the lazy dog.' correctly every time.