public default void replaceAll (BiFunction<? super K, ? super V, ? extends V> function)

Replaces each entry's value with the result of invoking the given function on that entry until all entries have been processed or the function throws an exception. Exceptions thrown by the function are relayed to the caller.

Parameters:

function

the function to apply to each entry

Exceptions:

UnsupportedOperationException		if the set operation is not supported by this map's entry set iterator.
ClassCastException		if the class of a replacement value prevents it from being stored in this map
NullPointerException		if the specified function is null, or the specified replacement value is null, and this map does not permit null values
ClassCastException		if a replacement value is of an inappropriate type for this map (optional)
NullPointerException		if function or a replacement value is null, and this map does not permit null keys or values (optional)
IllegalArgumentException		if some property of a replacement value prevents it from being stored in this map (optional)
ConcurrentModificationException		if an entry is found to be removed during iteration

Since:  1.8

@implSpec

The default implementation is equivalent to, for this map:

 
 for (Map.Entry<K, V> entry : map.entrySet())
     entry.setValue(function.apply(entry.getKey(), entry.getValue()));
 

The default implementation makes no guarantees about synchronization or atomicity properties of this method. Any implementation providing atomicity guarantees must override this method and document its concurrency properties.