/* */ public LongSortedSet keySet() { /* 139 */ if (this.keys == null) this.keys = LongSortedSets.singleton(this.key, this.comparator); return (LongSortedSet) this.keys; /* */ }
/* 305 */ public LongSortedSet keySet() { if (this.keys == null) this.keys = LongSortedSets.unmodifiable(this.sortedMap.keySet()); return (LongSortedSet) this.keys; }
/* 245 */ public LongSortedSet keySet() { if (this.keys == null) this.keys = LongSortedSets.synchronize(this.sortedMap.keySet(), this.sync); return (LongSortedSet) this.keys; }