code: public boolean isClassUnmarkedForRemoval(String className) {
  		for (ControlEntry controlEntry : controlList) {
  			if (controlEntry.pattern.matcher(className).matches() && controlEntry.controlMode == ControlMode.KEEP) {
  				return true;
  			}
  		}
  
  		return false;
  	}
docs: Returns {@code true} if given candidate class should not be removed from model.