title: Eclipse Problems View not showing Errors anymore
body: <p>For some reason Eclipse is no longer showing me Java compilation Errors in the Problems View.</p>
  
  <p>It is still showing Warnings.</p>
  
  <p>This has suddenly happened and I cannot think of anything that I have changed which would affect this.</p>
  
  <p>I am using the "Maven Integration for Eclipse" plugin but I have been for some time - not sure if this could have affected it or not.</p>
  
  <p>Any ideas?</p>