public static void throwException(Throwable t){
  if (UNSAFE != null) {
    UNSAFE.throwException(t);
  }
 else {
    JUnsafe.<RuntimeException>throwException0(t);
  }
}

public static void throwException ( Throwable t ) { if ( UNSAFE != null ) { UNSAFE . throwException ( t ) ; } else { JUnsafe . < RuntimeException > throwException0 ( t ) ; } }
raises an exception bypassing compiler checks for checked exceptions .
