title: Skipping some license tests in Maven
body: <p>I want to skip some license test but in vain.</p>
  
  <p>I tried several things such as <code>-Dlicense.skip=true</code> or <code>-Dlicensing</code> or <code>Drat.numUnapprovedLicense=100</code>.</p>
  
  <p>Still it didn't work.
  How can I skip this process?</p>