Java 8 ConcurrentHashMap initialisation

I am looking for a "CLEAN & Simple" method of initialising a ConcurrentHashMap.

With Java 8 I have this:-

private static final Map<String, String> myStreamedMap = Stream.of(
        new AbstractMap.SimpleImmutableEntry<>("Key1", "Value1"), 
        new AbstractMap.SimpleImmutableEntry<>("Key2", "Value2"), 
        new AbstractMap.SimpleImmutableEntry<>("Key3", "Value3"), 
        new AbstractMap.SimpleImmutableEntry<>("Key4", "Value4")).
        collect(Collectors.toMap((entry) -> entry.getKey(), (entry) -> entry.getValue()));

Which provides the desired end result, however I feel

"new AbstractMap.SimpleImmutableEntry<>"

Makes it hard to see whats going on.

Is there any way I can "hide" this and keep to a single line?

UPDATE

Came up with this (Obvious) solution

private static final Map<String, String> myStreamedMapWith = Stream.of(
        with("Key1", "Value1"), 
        with("Key2", "Value2"), 
        with("Key3", "Value3"), 
        with("Key4", "Value4")).
        collect(Collectors.toMap((entry) -> entry.getKey(), (entry) -> entry.getValue()));

private static AbstractMap.SimpleImmutableEntry<String, String> with(final String key, final String value) {
    return new AbstractMap.SimpleImmutableEntry<>(key, value);
}