title: Compile warnings setting on java buildpath in eclipse reverts after maven "update project"
body: <p>Whenever I do a maven update project (<kbd>alt</kbd>+<kbd>f5</kbd>), the setting "Ignore optional compile problems" revert to "No". This annoys the heck out of me since it is generated sources which i cant fix.</p>
  
  <p>Anyone know how to make it stick?</p>
  
  <p><img src="https://i.stack.imgur.com/TgeF8.png" alt="enter image description here"></p>