@Nullable
  @Override
  public Object getData(@NotNull String dataId) {
    // Make changes available for diff action
    if (VcsDataKeys.CHANGES.is(dataId)) {
      int[] rows = myTable.getSelectedRows();
      if (rows.length != 1) return null;
      int row = rows[0];

      VcsFullCommitDetails commit = myCommits.get(row);
      return commit.getChanges().toArray(Change.EMPTY_CHANGE_ARRAY);
    }
    return null;
  }
@Nullable
  @Override
  public Object getData(@NotNull String dataId)