Program: 95729
Project: 95729
Buggy source:
/** 
 * Names the given hierarchy container. <br> If the managed component has a unique name, this name is used. Otherwise a name (unique for the hierachy level) is created.
 * @param hierarchyContainer the SwingHierarchyContainer to name, if SwingHierarchyContainer is null, no action is performed and no exception is thrown.
 */
protected void name(JavaFXHierarchyContainer hierarchyContainer){
  final JavaFXComponent comp=hierarchyContainer.getComponent();
  String compName;
  Object component;
  Object realComponent=comp.getRealComponent();
  if (realComponent instanceof Node) {
    component=realComponent;
    compName=((Node)component).getId();
  }
 else   if (realComponent instanceof MenuItem) {
    component=realComponent;
    compName=((MenuItem)component).getId();
  }
 else {
    compName=null;
    component=realComponent;
  }
  if (realComponent instanceof Stage) {
    List<Stage> stages=CurrentStages.getStageList();
    ArrayList<String> names=new ArrayList<>();
    for (    Stage stage : stages) {
      JavaFXHierarchyContainer c=getHierarchyContainer(stage);
      if (c != null && c != hierarchyContainer) {
        names.add(c.getName());
      }
    }
    String name=null;
    int count=0;
    while (!isUniqueName(name,names)) {
      count++;
      name=createName(realComponent,count);
    }
    comp.setName(name);
    hierarchyContainer.setName(name,true);
    return;
  }
  JavaFXHierarchyContainer hierParent=(JavaFXHierarchyContainer)hierarchyContainer.getPrnt();
  if (hierarchyContainer.getName() != null && hierarchyContainer.getName().length() != 0 && !(hierarchyContainer.getName().equals("String_Node_Str"))) {
    if (isUniqueName(hierParent,hierarchyContainer.getName(),hierarchyContainer)) {
      return;
    }
 else     if (log.isInfoEnabled()) {
      log.info("String_Node_Str" + hierarchyContainer.getName() + "String_Node_Str");
    }
  }
  int count=0;
  String originalName=null;
  String newName=null;
  boolean newNameGenerated=(compName == null);
  if (compName != null) {
    originalName=compName;
    newName=compName;
  }
  if (newName == null) {
    while (!isUniqueName(hierParent,newName,hierarchyContainer)) {
      count++;
      newName=createName(component,count);
    }
  }
 else {
    while (!isUniqueName(hierParent,newName,hierarchyContainer)) {
      count++;
      newName=createName(originalName,count);
    }
  }
  comp.setName(newName);
  hierarchyContainer.setName(newName,newNameGenerated);
}

Fixed version (ground truth):
/** 
 * Names the given hierarchy container. <br> If the managed component has a unique name, this name is used. Otherwise a name (unique for the hierachy level) is created.
 * @param hierarchyContainer the SwingHierarchyContainer to name, if SwingHierarchyContainer is null, no action is performed and no exception is thrown.
 */
protected void name(JavaFXHierarchyContainer hierarchyContainer){
  final JavaFXComponent comp=hierarchyContainer.getComponent();
  String compName;
  Object realComponent=comp.getRealComponent();
  if (realComponent instanceof Node) {
    compName=((Node)realComponent).getId();
  }
 else   if (realComponent instanceof MenuItem) {
    compName=((MenuItem)realComponent).getId();
  }
 else {
    compName=null;
  }
  if (realComponent instanceof Stage) {
    List<Stage> stages=CurrentStages.getStageList();
    ArrayList<String> names=new ArrayList<>();
    for (    Stage stage : stages) {
      JavaFXHierarchyContainer c=getHierarchyContainer(stage);
      if (c != null && c != hierarchyContainer) {
        names.add(c.getName());
      }
    }
    String name=null;
    int count=0;
    while (!isUniqueName(name,names)) {
      count++;
      name=createName(realComponent,count);
    }
    comp.setName(name);
    hierarchyContainer.setName(name,true);
    return;
  }
  JavaFXHierarchyContainer hierParent=(JavaFXHierarchyContainer)hierarchyContainer.getPrnt();
  if (hierarchyContainer.getName() != null && hierarchyContainer.getName().length() != 0 && !(hierarchyContainer.getName().trim().isEmpty())) {
    if (isUniqueName(hierParent,hierarchyContainer.getName(),hierarchyContainer)) {
      return;
    }
 else     if (log.isInfoEnabled()) {
      log.info("String_Node_Str" + hierarchyContainer.getName() + "String_Node_Str");
    }
  }
  int count=0;
  String originalName=null;
  String newName=null;
  boolean newNameGenerated=(compName == null);
  if (compName != null && !(compName.isEmpty()) && !(compName.trim().isEmpty())) {
    originalName=compName;
    newName=compName;
  }
  if (newName == null) {
    while (!isUniqueName(hierParent,newName,hierarchyContainer)) {
      count++;
      newName=createName(realComponent,count);
    }
  }
 else {
    while (!isUniqueName(hierParent,newName,hierarchyContainer)) {
      count++;
      newName=createName(originalName,count);
    }
  }
  comp.setName(newName);
  hierarchyContainer.setName(newName,newNameGenerated);
}