public ImmutableNamespaces withPrefix(String prefix, String namespaceURI) {
		Objects.requireNonNull(prefix, "Prefix cannot be null");
		Objects.requireNonNull(namespaceURI, "Namespace URI cannot be null");
		ImmutableNamespaces result=new ImmutableNamespaces(this.map);
		result.map.put(prefix, namespaceURI);
		return result;
	}
public ImmutableNamespaces withPrefix(String prefix, String namespaceURI) {
		Objects.requireNonNull(prefix, "Prefix cannot be null");
		Objects.requireNonNull(namespaceURI, "Namespace URI cannot be null");
		ImmutableNamespaces result=new ImmutableNamespaces(this.map);
		result.map.put(prefix, namespaceURI);
		return result;
	}
public ImmutableNamespaces withPrefix ( String prefix , String namespaceURI ) { Objects . requireNonNull ( prefix , "Prefix cannot be null" ) ; Objects . requireNonNull ( namespaceURI , "Namespace URI cannot be null" ) ; ImmutableNamespaces result = new ImmutableNamespaces ( this . map ) ; result . map . put ( prefix , namespaceURI ) ; return result ; }
Create a copy of the namespaces which includes a mapping between a given
prefix and namespace URI.

@param prefix
the prefix to be added
@param namespaceURI
the namespace URI to be mapped to the prefix
@return a copy of the instance that includes the mapping between the
specified namespace URI and prefix.
@throws NullPointerException if the prefix or namespace URI are null.
Create a copy of the namespaces which includes a mapping between a given prefix and namespace URI .