+ /**
+ * Transform input value to URI instance.
+ *
+ * Input string has to be in format moduleName:localName. moduleName part is then transformed to URI instance.
+ * If moduleName part contains character like "<" or ">" then null value is returned because they
+ * aren't valid URI characters.
+ *
+ * @param jsonElementName
+ * value in format moduleName:localName
+ * @return
+ */