code: public void setWarnings(java.util.Collection<String> warnings) {
          if (warnings == null) {
              this.warnings = null;
              return;
          }
  
          this.warnings = new java.util.ArrayList<String>(warnings);
      }
docs: <p>
  The warning messages reported when <code>failonwarnings</code> is turned on during API import.
  </p>
  
  @param warnings
  The warning messages reported when <code>failonwarnings</code> is turned on during API import.