Returns {@code true} if the specified {@code Map} is {@code null} or {@link Map#isEmpty empty},
{@code false} otherwise.
@param m the {@code Map} to check
@return {@code true} if the specified {@code Map} is {@code null} or {@link Map#isEmpty empty},
{@code false} otherwise.
Returns {@code true} if the specified {@code Map} is {@code null} or {@link Map#isEmpty empty}, {@code false} otherwise.
@param m the {@code Map} to check @return {@code true} if the specified {@code Map} is {@code null} or {@link Map#isEmpty empty}, {@code false} otherwise.