Method remove

src/main/java/org/mapdb/BTreeMapJava.java:576–585

(Object o)

            return v != null && valueSerializer.equals(v,e.getValue());
        }
        @Override
        public boolean remove(Object o) {
            if (!(o instanceof Map.Entry))
                return false;
            Map.Entry<K1,V1> e = (Map.Entry<K1,V1>)o;
            K1 key = e.getKey();
            if(key == null) return false;
            return m.remove(key,
                    e.getValue());
        }
        @Override
        public boolean isEmpty() {
            return m.isEmpty();