title: eclipse warning A compatible JRE is available but has been overridden
body: <p>I've just updated my projects to java 8, and eclipse is giving this WARNING for each and every project in the workspace:</p>
  
  <p>Build path specifies execution environment JavaSE-1.8. A compatible JRE is available but has been overridden.
  Warning Location: Build path
  Warning Type: JRE System Library Problem</p>
  
  <p>eclipse.ini is set to java 8 vm: java8/jre/bin/server/jvm.dll
  I removed JAVA_HOME variable from the system environment (which pointed to java 7) but for no avail.</p>
  
  <p>Forgot to mention: using m2e maven eclipse plugin.</p>
  
  <p>Tried to search eclipse sources to see what is causing this warning, but couldn't find my arms and legs.
  Anyone?</p>