package com.airlock.iam.base.misc.collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

public final class IamCollections {
   public static <T> Collection<T> mergeCollections(Collection<T> a, Collection<T> b) {
      Collection<T> result = new ArrayList<>();
      result.addAll(a);
      result.addAll(b);
      return result;
   }

   public static <T> Map<String, T> nullMap(String key) {
      Map<String, T> map = new HashMap<>();
      map.put(key, null);
      return map;
   }

   private IamCollections() {
      throw new AssertionError();
   }
}