gistfile1.java

    @SuppressWarnings("unchecked")
    public static <T> T[] concatArrays8(T[] arr1, T[] arr2) {
            T[] both = (T[])Array.newInstance(arr1.getClass().getComponentType(), arr1.length+arr2.length);
	    Object[] bothObj = Stream.concat(Arrays.stream(arr1), Arrays.stream(arr2)).toArray();
	    for (int i = 0; i < both.length; i++) {
	        both[i] = (T)bothObj[i];
	    }
	    return both;
    }