When copying a JSP file to a subfolder of "Web Pages" an "package subfolder;" statement is automatically prepended to
the newly created file. I assume this is not the intended behaviour.

To reproduce create a new empty Web Application project, right click on Web Pages, choose New->Other... and create a new
Folder called test.
Now right click on the index.jsp initially created with the new project and choose Copy from the context menu, then
paste it into the new test folder. The page will contain the text "package test;"