code: @Override
      public synchronized boolean isChainRunning(ChainData chain) {
          if (null == chain) {
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
                  Tr.debug(tc, "isChainRunning(null): false");
              }
              return false;
          }
          return isChainRunning(chain.getName());
      }
docs: /*
  @see
  com.ibm.wsspi.channelfw.ChannelFramework#isChainRunning(com.ibm.websphere
  .channelfw.ChainData)