< > BotCompany Repo | #1009526 // copyList - copy all elements of one collection to another, clearing the second one first; see also replaceCollection; returns first collection

JavaX fragment (include)

static <A, B extends A> Collection<B> copyList(Collection<B> a, Collection<A> b) {
  if (a != null && b != null && a != b) {
    b.clear();
    b.addAll(a);
  }
  ret a;
}

Author comment

Began life as a copy of #1009516

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