< > BotCompany Repo | #1020655 // cloneHashSet - safely clone a collection to HashSet

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (1742L/11K).

static <A> HashSet<A> cloneHashSet(Collection<A> set) {
  if (set == null) ret new HashSet;
  synchronized(collectionMutex(set)) {
    HashSet<A> s = new(l(set));
    s.addAll(set);
    ret s;
  }
}

Author comment

Began life as a copy of #1005270

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