Tomcat throws ClassNotFound exceptions for classes in other open eclipse projects

Question

I have an eclipse project structure that looks something like this:

eclipse
    project a
    project b

All of these projects are Maven pro

Answer 1

Have you installed the m2eclipse extension that know about WTP? Without it m2e will not work correctly for WTP projects. See this:

https://docs.sonatype.org/display/M2ECLIPSE/WTP+mini+howto