code: private void closeInboundInternal() {
  
          if ((debug != null) && Debug.isOn("ssl")) {
              System.out.println(threadName() + ", closeInboundInternal()");
          }
  
          /*
           * Already closed, ignore
           */
          if (inboundDone) {
              return;
          }
  
          closeOutboundInternal();
          inboundDone = true;
  
          // See comment in changeReadCiphers()
          readCipher.dispose();
  
          connectionState = cs_CLOSED;
      }
docs: Signals that no more inbound network data will be sent
  to this <code>SSLEngine</code>.