Groovy in Action, Second Edition

Primitive type	Method name	Parameter types	Return type
	swap	int, int	short[]
	toList	_	List
	toSet	_	Set
	toString	_	String
boolean[]
	asBoolean	_	Boolean
	contains	Object	Boolean
	count	Object	Number
	flatten	_	Collection
	getAt	Collection	List
	getAt	IntRange	List
	getAt	ObjectRange	List
	getAt	Range	List
	size	_	int
	swap	int, int	Boolean[]
	toList	_	List
	toSet	_	Set
	toString	_	String
	double
	downto	Number, Closure	void
	upto	Number, Closure	void
	float
	downto	Number, Closure	void
	upto	Number, Closure	void
	long
	downto	Number, Closure	void
	upto	Number, Closure	void

The groovy.lang package

Table C.2. groovy.lang package ...