### Question:
ServerOutputStream extends UnicastExportable implements RemoteOutputStream, Closeable { public ServerOutputStream(OutputStream out, Exporter exporter) throws RemoteException { super(exporter); this.out = out; } ServerOutputStream(OutputStream out, Exporter exporter); void write(int b); void write(byte[] b); void write(PartialBuffer b); void flush(); void close(); @Override void unreferenced();  }### Answer:
@Test public void testServerOutputStream() throws IOException { assertTrue(so.getExported() instanceof RemoteOutputStream); }