builder.setVersionNumber(contract.getVersionNumber());
            return builder;
        }

		/**
		 * Sets the value of the id on this builder to the given value.
		 * 
		 * @param id the id value to set, must be null or non-blank
		 * @throws IllegalArgumentException if the id is non-null and blank
		 */
        public void setId(String id) {
            if (null != id && StringUtils.isBlank(id)) {
                throw new IllegalArgumentException("id must be null or non-blank");
            }
            this.id = id;
        }

		public void setName(String name) {
            if (StringUtils.isBlank(name)) {
                throw new IllegalArgumentException("name is blank");
            }
			this.name = name;
		}

		public void setNamespace(String namespace) {
            if (StringUtils.isBlank(namespace)) {
                throw new IllegalArgumentException("namespace is blank");
            }
			this.namespace = namespace;
		}
		
		public void setLabel(String label) {

		super(message + " " + buildResolutionInfoString(tr, parameters));
		if (tr == null) {
			termResolverClassName = "";
			outputTerm = null;
			prereqs = null;
			parameterNames = null;
		} else {
			termResolverClassName = tr.getClass().getName();
			outputTerm = tr.getOutput();
			prereqs = tr.getPrerequisites();
			parameterNames = Collections.unmodifiableSet(new HashSet<String>(tr.getParameterNames()));
		}
		if (parameters != null){
			this.parameters = Collections.unmodifiableMap(new HashMap<String, String>(parameters));
		} else {
			this.parameters = null;
		}
	}