code: @Override
  	public ConstraintReport constraintReportOfId(ConstraintReportId id) {
  		checkNotNull(id,"Constraint report identifier cannot be null");
  		this.lock.readLock().lock();
  		try {
  			return this.reports.get(id);
  		} finally {
  			this.lock.readLock().unlock();
  		}
  	}
docs: {@inheritDoc}