code: public static int l2i(long l) {
          if (l > Integer.MAX_VALUE || l < Integer.MIN_VALUE) {
              throw new RuntimeException("A cast to int has gone wrong. Please contact the mp4parser discussion group (" + l + ")");
          }
          return (int) l;
      }
docs: Casts a long to an int. In many cases I use a long for a UInt32 but this cannot be used to allocate
  ByteBuffers or arrays since they restricted to <code>Integer.MAX_VALUE</code> this cast-method will throw
  a RuntimeException if the cast would cause a loss of information.
  
  @param l the long value
  @return the long value as int