Eclipse file search finds the same file multiple times

Question

In Eclipse I have two maven projects A and B, where A is a parent for B. The directory structure is the following:

A/pom.xml
A/B/pom.xml
A/B/...

Answer 1

As a new joiner, still couldn't comment but I'd really like to add something to the best answer. It works! It not only removed the duplicate files for me (one from child module and one from parent module), it also removed the class files from parent module).

But it added the folder to my .gitignore which will cause problem for new files/directories added later. I just reverted the change to .gitignore and it still works in eclipse.

Find this answer to disable auto change of .gitignore EGit and Eclipse modifies .gitignore file but it should not