edu.colorado.cires.cmg.mvt.util

Class JdkUtils

java.lang.Object

edu.colorado.cires.cmg.mvt.util.JdkUtils

public final class JdkUtils
extends Object

Mimic future JDK capabilities for backwards compatibility.

Method Summary

Modifier and Type	Method and Description
static <K,V> V	putIfAbsent(Map<K,V> map, K key, V value) Backwards compatible Map.putIfAbsent(K, V) to support < Android API 24.
static <T> T	requireNonNull(T object) This method mimics the behavior of Objects.requireNonNull method to allow Android API level 15 backward compatibility.

Methods inherited from class java.lang.Object

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

Method Detail

putIfAbsent

public static <K,V> V putIfAbsent(Map<K,V> map,
                                  K key,
                                  V value)

Backwards compatible Map.putIfAbsent(K, V) to support < Android API 24. If the specified key is not already associated with a value (or is mapped to null) associates it with the given value and returns null, else returns the current value.

Parameters:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

Returns:

the previous value associated with the specified key, or null if there was no mapping for the key.

requireNonNull

public static <T> T requireNonNull(T object)

This method mimics the behavior of Objects.requireNonNull method to allow Android API level 15 backward compatibility.

Parameters:

object -

Returns:

object

Throws:

NullPointerException - if object is null