code: @Override
      public synchronized ChannelData getChannel(String channelName) {
          ChannelData channel = null;
          if (null != channelName) {
              channel = this.channelDataMap.get(channelName);
          }
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "getChannel: " + channelName + " found=" + (null != channel));
          }
          return channel;
      }
docs: /*
  @see com.ibm.wsspi.channelfw.ChannelFramework#getChannel(String)