private void clearProjectLookup(){
  if (projectLookup != null) {
    Collection<? extends Project> projects=projectLookup.lookupAll(Project.class);
    for (    Project project : projects) {
      content.remove(project);
    }
  }
}

private void clearProjectLookup ( ) { if ( projectLookup != null ) { Collection < ? extends Project > projects = projectLookup . lookupAll ( Project . class ) ; for ( Project project : projects ) { content . remove ( project ) ; } } }
unconditionally clears the project lookup .
