@NotNull
  public static ConflictState getInstance(final boolean tree, final boolean text, final boolean property) {
    final ConflictState[] conflictStates = values();
    for (ConflictState state : conflictStates) {
      if ((state.isTree() == tree) && (state.isText() == text) && (state.isProperty() == property)) {
        return state;
      }
    }
    // all combinations are defined
    assert false;
    return null;
  }
@NotNull
  public static ConflictState getInstance(final boolean tree, final boolean text, final boolean property)