Program: 137873
Project: 137873
Buggy source:
@Override protected void doRun(){
  if (this.repositoryNode instanceof JrxmlTempSubFolderNode) {
    MessageUI.openWarning(DefaultMessagesImpl.getString("String_Node_Str"));
    return;
  }
  if (this.repositoryNode instanceof SourceFileSubFolderNode) {
    ReturnCode rc=WorkspaceResourceHelper.checkSourceFileSubFolderNodeOpening((SourceFileSubFolderNode)repositoryNode);
    if (rc.isOk()) {
      WorkspaceResourceHelper.showSourceFilesOpeningWarnMessages(rc.getMessage());
      return;
    }
  }
  InputDialog dialog=new InputDialog(Display.getDefault().getActiveShell(),DefaultMessagesImpl.getString("String_Node_Str"),DefaultMessagesImpl.getString("String_Node_Str"),null,new IInputValidator(){
    public String isValid(    String newText){
      return null;
    }
  }
);
  if (dialog.open() == InputDialog.OK) {
    String value2=dialog.getValue();
    try {
      List<IRepositoryNode> openRepNodes=getOpenRepNodeForReName(this.repositoryNode,true);
      RepNodeUtils.closeModelElementEditor(openRepNodes,true);
      boolean isReportSubFolderRepNode=this.repositoryNode instanceof ReportSubFolderRepNode;
      IFolder folder=null;
      File tarFile=null;
      if (isReportSubFolderRepNode) {
        String tempFolderName=StringUtilities.getRandomString(8);
        folder=RepositoryNodeHelper.getIFolder(this.repositoryNode);
        File srcFile=WorkspaceUtils.ifolderToFile(folder);
        tarFile=WorkspaceUtils.ifolderToFile(folder.getParent().getFolder(new Path(tempFolderName)));
        if (!tarFile.exists()) {
          tarFile.mkdirs();
        }
        if (srcFile.exists() && tarFile.exists()) {
          FilesUtils.copyDirectory(srcFile,tarFile);
        }
      }
      IPath path=WorkbenchUtils.getPath(this.repositoryNode);
      ProxyRepositoryFactory.getInstance().renameFolder(this.repositoryNode.getObjectType(),path,value2);
      if (isReportSubFolderRepNode && folder != null && tarFile != null) {
        ReportUtils.copyAndUpdateRepGenDocFileInfo(folder.getParent().getFolder(new Path(value2)),tarFile,folder.getName());
      }
      if (this.repositoryNode != null && this.repositoryNode.getParent() != null) {
        CorePlugin.getDefault().refreshDQView(this.repositoryNode.getParent());
      }
    }
 catch (    PersistenceException e) {
      log.error(e.getMessage());
      CorePlugin.getDefault().refreshDQView(this.repositoryNode.getParent());
      MessageDialog.openError(PlatformUI.getWorkbench().getDisplay().getActiveShell(),DefaultMessagesImpl.getString("String_Node_Str"),e.getMessage());
    }
  }
}

Fixed version (ground truth):
@Override protected void doRun(){
  if (this.repositoryNode instanceof JrxmlTempSubFolderNode) {
    MessageUI.openWarning(DefaultMessagesImpl.getString("String_Node_Str"));
    return;
  }
  if (this.repositoryNode instanceof SourceFileSubFolderNode) {
    ReturnCode rc=WorkspaceResourceHelper.checkSourceFileSubFolderNodeOpening((SourceFileSubFolderNode)repositoryNode);
    if (rc.isOk()) {
      WorkspaceResourceHelper.showSourceFilesOpeningWarnMessages(rc.getMessage());
      return;
    }
  }
  boolean isReportSubFolderRepNode=this.repositoryNode instanceof ReportSubFolderRepNode;
  IFolder folder=null;
  File tarFile=null;
  if (isReportSubFolderRepNode) {
    String tempFolderName=StringUtilities.getRandomString(8);
    folder=RepositoryNodeHelper.getIFolder(this.repositoryNode);
    File srcFile=WorkspaceUtils.ifolderToFile(folder);
    tarFile=WorkspaceUtils.ifolderToFile(folder.getParent().getFolder(new Path(tempFolderName)));
    if (!tarFile.exists()) {
      tarFile.mkdirs();
    }
    if (srcFile.exists() && tarFile.exists()) {
      FilesUtils.copyDirectory(srcFile,tarFile);
    }
  }
  ISelection selection=getSelection();
  Object obj=((IStructuredSelection)selection).getFirstElement();
  RepositoryNode node=(RepositoryNode)obj;
  String firstChildOpen=getFirstOpenedChild(node);
  if (firstChildOpen != null) {
    MessageDialog.openWarning(new Shell(),Messages.getString("String_Node_Str"),Messages.getString("String_Node_Str",firstChildOpen,node.getProperties(EProperties.LABEL)));
    return;
  }
  ERepositoryObjectType objectType=null;
  IPath path=null;
  path=RepositoryNodeUtilities.getPath(node);
  objectType=(ERepositoryObjectType)node.getProperties(EProperties.CONTENT_TYPE);
  if (objectType != null) {
    FolderWizard processWizard=new TdqFolderWizard(path,objectType,node,tarFile);
    Shell activeShell=Display.getCurrent().getActiveShell();
    WizardDialog dialog=new WizardDialog(activeShell,processWizard);
    dialog.setPageSize(400,60);
    dialog.create();
    dialog.open();
    if (this.repositoryNode != null && this.repositoryNode.getParent() != null) {
      CorePlugin.getDefault().refreshDQView(this.repositoryNode.getParent());
    }
  }
}