Eclipse loops endlessly: Invoking 'Maven Project Builder'

I was able to resolve this by right clicking on the project and selecting Run As > Maven Clean

I opened my module's .project file. There were two entries:

<buildCommand>
  <name>org.maven.ide.eclipse.maven2Builder</name>
</buildCommand>
<buildCommand>
  <name>org.eclipse.m2e.core.maven2Builder</name>
</buildCommand>

I removed org.eclipse.m2e.core.maven2Builder entry and it magically fixed the problem.