code: public void readDwgEndblkV15(int[] data, int offset) throws Exception {
  		int bitPos = offset;
  		bitPos = readObjectHeaderV15(data, bitPos);
  		bitPos = readObjectTailV15(data, bitPos);
  	}
docs: Read a Endblk in the DWG format Version 15
  
  @param data Array of unsigned bytes obtained from the DWG binary file
  @param offset The current bit offset where the value begins
  @throws Exception If an unexpected bit value is found in the DWG file. Occurs
  when we are looking for LwPolylines.