@Override
    public boolean anyMatch(Predicate<? super Map.Entry<K, V>> predicate) {
        return inner.anyMatch(requireNonNull(predicate));
    }
Returns whether any elements of this stream match the provided
predicate. May not evaluate the predicate on all elements if not
necessary for determining the result.  If the stream is empty then
{@code false} is returned and the predicate is not evaluated.
<p>
This is a short-circuiting terminal operation.

<p>
This method evaluates the <em>existential quantification</em> of the
predicate over the elements of the stream (for some x P(x)).

@param predicate  a non-interfering, stateless predicate to apply to 
                  elements of this stream
@return           {@code true} if any elements of the stream match the 
                  provided predicate, otherwise {@code false}
@throws NullPointerException if any of the provided parameters are {@code null}
common-parent/mapstream/src/main/java/com/speedment/common/mapstream/MapStream.java