code: public void setCommunications(java.util.Collection<Communication> communications) {
          if (communications == null) {
              this.communications = null;
              return;
          }
  
          this.communications = new com.amazonaws.internal.SdkInternalList<Communication>(communications);
      }
docs: <p>
  The five most recent communications associated with the case.
  </p>
  
  @param communications
  The five most recent communications associated with the case.