Program: 95325
Project: 95325
Buggy source:
/** 
 * This method must be called on the FX Thread.
 * @param targetTab the Tab for which to get the bounding node.
 * @return the Node representing the bounding box of <code>targetTab</code>,or <code>null</code> if no such Node could be found.
 * @throws StepExecutionException if the Skin or structure of the realcomponent is not supported.
 */
private Node getNodeFor(Tab targetTab) throws StepExecutionException {
  EventThreadQueuerJavaFXImpl.checkEventThread();
  Skin<?> tabPaneSkin=getRealComponent().getSkin();
  if (!(tabPaneSkin instanceof SkinBase)) {
    throw new StepExecutionException("String_Node_Str" + tabPaneSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
  }
  ClassLoader skinClassLoader=targetTab.getClass().getClassLoader();
  try {
    Class<?> tabHeaderAreaClass=skinClassLoader.loadClass(TAB_HEADER_AREA_CLASSNAME);
    for (    Node tabPaneSkinChild : ((SkinBase<?>)tabPaneSkin).getChildren()) {
      if (tabHeaderAreaClass.isInstance(tabPaneSkinChild)) {
        Method method=tabHeaderAreaClass.getDeclaredMethod(GET_TAB_HEADER_SKIN_METHOD_NAME,GET_TAB_HEADER_SKIN_PARAMETER_TYPES);
        method.setAccessible(true);
        Object tabHeaderSkin=method.invoke(tabPaneSkinChild,new Object[]{targetTab});
        if (tabHeaderSkin == null || tabHeaderSkin instanceof Node) {
          return (Node)tabHeaderSkin;
        }
        throw new StepExecutionException("String_Node_Str" + tabHeaderSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
      }
    }
  }
 catch (  ClassNotFoundException|NoSuchMethodException e) {
  }
catch (  IllegalAccessException|InvocationTargetException e) {
    throw new StepExecutionException(e);
  }
  throw new StepExecutionException("String_Node_Str" + tabPaneSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
}

Fixed version (ground truth):
/** 
 * This method must be called on the FX Thread.
 * @param targetTab the Tab for which to get the bounding node.
 * @return the Node representing the bounding box of <code>targetTab</code>,or <code>null</code> if no such Node could be found.
 * @throws StepExecutionException if the Skin or structure of the realcomponent is not supported.
 */
private Node getNodeFor(Tab targetTab) throws StepExecutionException {
  EventThreadQueuerJavaFXImpl.checkEventThread();
  Skin<?> tabPaneSkin=getRealComponent().getSkin();
  if (!(tabPaneSkin instanceof SkinBase)) {
    throw new StepExecutionException("String_Node_Str" + tabPaneSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
  }
  ClassLoader skinClassLoader=targetTab.getClass().getClassLoader();
  try {
    Class<?> tabHeaderAreaClass=null;
    if (SystemUtils.JAVA_VERSION_FLOAT > 1.8f) {
      tabHeaderAreaClass=skinClassLoader.loadClass(TAB_HEADER_AREA_CLASSNAME_JAVA9);
    }
 else {
      tabHeaderAreaClass=skinClassLoader.loadClass(TAB_HEADER_AREA_CLASSNAME);
    }
    for (    Node tabPaneSkinChild : ((SkinBase<?>)tabPaneSkin).getChildren()) {
      if (tabHeaderAreaClass.isInstance(tabPaneSkinChild)) {
        Method method=tabHeaderAreaClass.getDeclaredMethod(GET_TAB_HEADER_SKIN_METHOD_NAME,GET_TAB_HEADER_SKIN_PARAMETER_TYPES);
        method.setAccessible(true);
        Object tabHeaderSkin=method.invoke(tabPaneSkinChild,new Object[]{targetTab});
        if (tabHeaderSkin == null || tabHeaderSkin instanceof Node) {
          return (Node)tabHeaderSkin;
        }
        throw new StepExecutionException("String_Node_Str" + tabHeaderSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
      }
    }
  }
 catch (  ClassNotFoundException|NoSuchMethodException e) {
  }
catch (  IllegalAccessException|InvocationTargetException e) {
    throw new StepExecutionException(e);
  }
  throw new StepExecutionException("String_Node_Str" + tabPaneSkin.getClass(),EventFactory.createActionError(TestErrorEvent.RENDERER_NOT_SUPPORTED));
}