code: public void setApplicationArns(java.util.Collection<String> applicationArns) {
          if (applicationArns == null) {
              this.applicationArns = null;
              return;
          }
  
          this.applicationArns = new com.amazonaws.internal.SdkInternalList<String>(applicationArns);
      }
docs: <p>
  List of SNS platform application ARNs that could be used by clients.
  </p>
  
  @param applicationArns
  List of SNS platform application ARNs that could be used by clients.