public Path getDefaultRootDirPath(boolean create) throws IOException {
    if (!create) {
      return getDataTestDirOnTestFS();
    } else {
      return getNewDataTestDirOnTestFS();
    }
  }
Returns the path to the default root dir the minicluster uses. If <code>create</code> is true,
a new root directory path is fetched irrespective of whether it has been fetched before or not.
If false, previous path is used. Note: this does not cause the root dir to be created.
@return Fully qualified path for the default hbase root dir
hbase-testing-util/src/main/java/org/apache/hadoop/hbase/HBaseTestingUtility.java