io.jsonwebtoken.lang

Class Arrays

java.lang.Object

io.jsonwebtoken.lang.Arrays

public final class Arrays
extends Object

Utility methods to work with array instances.

Since:

0.6

Method Summary

Methods

Modifier and Type	Method and Description
static <T> List<T>	asList(T[] a) Converts the specified array to a List.
static byte[]	clean(byte[] bytes) Returns the byte array unaltered if it is non-null and has a positive length, otherwise null.
static Object	copy(Object obj) Creates a shallow copy of the specified object or array.
static int	length(byte[] bytes) Returns the length of the specified byte array, or 0 if the byte array is null.
static <T> int	length(T[] a) Returns the length of the array, or 0 if the array is null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

length

public static <T> int length(T[] a)

Returns the length of the array, or 0 if the array is null.

Type Parameters:

T - the type of elements in the array

Parameters:

a - the possibly-null array

Returns:

the length of the array, or zero if the array is null.

asList

public static <T> List<T> asList(T[] a)

Converts the specified array to a List. If the array is empty, an empty list will be returned.

Type Parameters:

T - the type of elements in the array

Parameters:

a - the array to represent as a list

Returns:

the array as a list, or an empty list if the array is empty.

length

public static int length(byte[] bytes)

Returns the length of the specified byte array, or 0 if the byte array is null.

Parameters:

bytes - the array to check

Returns:

the length of the specified byte array, or 0 if the byte array is null.

clean

public static byte[] clean(byte[] bytes)

Returns the byte array unaltered if it is non-null and has a positive length, otherwise null.

Parameters:

bytes - the byte array to check.

Returns:

the byte array unaltered if it is non-null and has a positive length, otherwise null.

copy

public static Object copy(Object obj)

Creates a shallow copy of the specified object or array.

Parameters:

obj - the object to copy

Returns:

a shallow copy of the specified object or array.