< > BotCompany Repo | #1024976 // mapPut_noOverwrite - put into map if key & value are not null & key not there

JavaX fragment (include)

static <A, B> void mapPut_noOverwrite(Map<A, B> map, A key, B value) {
  if (map != null && key != null && value != null
    && !map.containsKey(key))
    map.put(key, value);
}

Author comment

Began life as a copy of #1007227

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