/* */ 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;
}
