Method containsKey

src/main/java/fieldnashorn/Nashorn.java:275–283

(Object key)

						Object mmm = mm.get(key);
						return mmm;
					}
					return null;

				}

				@Override
				public boolean containsKey(Object key) {
					ScriptObjectMirror som = (ScriptObjectMirror) super.get("nashorn.global");
					if (super.containsKey(key)) return true;
					if (som != null) {
						return som.containsKey(key);
					}