return (importPackageSpecification.getResolution() & ImportPackageSpecification.RESOLUTION_OPTIONAL) != 0;
return ImportPackageSpecification.RESOLUTION_OPTIONAL.equals(importPackageSpecification.getDirective(Constants.RESOLUTION_DIRECTIVE));
	boolean isOptional() {		return (importPackageSpecification.getResolution() & ImportPackageSpecification.RESOLUTION_OPTIONAL) != 0;	}