parquet-common/src/main/java/org/apache/parquet/Exceptions.java
public static <E extends Exception> void throwIfInstance(Throwable t,
                                                           Class<E> excClass)
      throws E {
    if (excClass.isAssignableFrom(t.getClass())) {
      // the throwable is already an exception, so return it
      throw excClass.cast(t);
    }
  }
public static <E extends Exception> void throwIfInstance(Throwable t,
                                                           Class<E> excClass)
      throws E {
    if (excClass.isAssignableFrom(t.getClass())) {
      // the throwable is already an exception, so return it
      throw excClass.cast(t);
    }
  }
If the given throwable is an instance of E, throw it as an E.

@param t an exception instance
@param excClass an exception class t may be an instance of
@param <E> the type of exception that will be thrown if throwable is an instance
@throws E if t is an instance of E