### Question:
HopRowCoder extends AtomicCoder<HopRow> { @Override public HopRow decode( InputStream inStream ) throws CoderException, IOException { ObjectInputStream in = new ObjectInputStream( inStream ); Object[] row = null; int length = in.readInt(); if ( length < 0 ) { return new HopRow( row ); } row = new Object[ length ]; for ( int i = 0; i < length; i++ ) { boolean isNull = in.readBoolean(); if ( !isNull ) { int objectType = in.readInt(); Object object = read( in, objectType ); row[ i ] = object; } } return new HopRow( row ); }  @Override void encode( HopRow value, OutputStream outStream ); @Override HopRow decode( InputStream inStream ); @Override void verifyDeterministic();  }### Answer:
@Test public void decode() { }