Program: 44650
Project: 44650
Buggy source:
private void updateName(Session session,Topic topic,Node topicJcrNode,Context context) throws RepositoryException {
  if (StringUtils.isBlank(topic.getName())) {
    String possibleSystemName=null;
    if (topic.hasLocalizedLabels()) {
      possibleSystemName=topic.getLocalizedLabelForLocale(Locale.ENGLISH.toString());
      if (StringUtils.isBlank(possibleSystemName)) {
        for (        String label : topic.getLocalizedLabels().values()) {
          possibleSystemName=cmsRepositoryEntityUtils.fixSystemName(label);
          if (StringUtils.isNotBlank(possibleSystemName)) {
            break;
          }
        }
      }
 else {
        possibleSystemName=cmsRepositoryEntityUtils.fixSystemName(possibleSystemName);
      }
    }
    if (StringUtils.isBlank(possibleSystemName)) {
      logger.warn("String_Node_Str" + topic.getId() + "String_Node_Str");
    }
 else {
      topic.setName(possibleSystemName);
    }
  }
  if (topic.getName() != null) {
    if (!cmsRepositoryEntityUtils.isValidSystemName(topic.getName())) {
      throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ CmsConstants.SYSTEM_NAME_REG_EXP);
    }
    TopicCriteria topicCriteria=CmsCriteriaFactory.newTopicCriteria();
    topicCriteria.addNameEqualsCriterion(topic.getName());
    if (topic.getId() != null) {
      topicCriteria.addIdNotEqualsCriterion(topic.getId());
    }
    topicCriteria.setOffsetAndLimit(0,2);
    CmsQueryResult sameNameTopicsInTaxonomy=cmsQueryHandler.getNodesFromXPathQuery(session,topicCriteria);
    if (sameNameTopicsInTaxonomy.getTotalRowCount() != 0) {
      StringBuilder topicPaths=new StringBuilder();
      NodeIterator nodeIterator=sameNameTopicsInTaxonomy.getNodeIterator();
      while (nodeIterator.hasNext()) {
        topicPaths.append("String_Node_Str");
        topicPaths.append(nodeIterator.nextNode().getPath());
      }
      throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ topicPaths.toString());
    }
 else {
      Node cachedTopicNode=context.getNodeFromCache(topic.getName());
      if (cachedTopicNode != null && !cachedTopicNode.isSame(topicJcrNode)) {
        throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ "String_Node_Str"+ topic.getName());
      }
    }
    topicJcrNode.setProperty(CmsBuiltInItem.Name.getJcrName(),topic.getName());
  }
 else   topicJcrNode.setProperty(CmsBuiltInItem.Name.getJcrName(),JcrValueUtils.getJcrNull());
}

Fixed version (ground truth):
private void updateName(Session session,Topic topic,Node topicJcrNode,Context context) throws RepositoryException {
  if (StringUtils.isBlank(topic.getName())) {
    if (topicJcrNode.hasProperty(CmsBuiltInItem.Name.getJcrName())) {
      topic.setName(topicJcrNode.getProperty(CmsBuiltInItem.Name.getJcrName()).getString());
      return;
    }
    String possibleSystemName=null;
    if (topic.hasLocalizedLabels()) {
      possibleSystemName=topic.getLocalizedLabelForLocale(Locale.ENGLISH.toString());
      if (StringUtils.isBlank(possibleSystemName)) {
        for (        String label : topic.getLocalizedLabels().values()) {
          possibleSystemName=cmsRepositoryEntityUtils.fixSystemName(label);
          if (StringUtils.isNotBlank(possibleSystemName)) {
            break;
          }
        }
      }
 else {
        possibleSystemName=cmsRepositoryEntityUtils.fixSystemName(possibleSystemName);
      }
    }
    if (StringUtils.isNotBlank(possibleSystemName)) {
      topic.setName(possibleSystemName);
    }
  }
  if (topic.getName() != null) {
    if (topicJcrNode.hasProperty(CmsBuiltInItem.Name.getJcrName())) {
      if (StringUtils.equals(topicJcrNode.getProperty(CmsBuiltInItem.Name.getJcrName()).getString(),topic.getName())) {
        return;
      }
    }
    if (!cmsRepositoryEntityUtils.isValidSystemName(topic.getName())) {
      throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ CmsConstants.SYSTEM_NAME_REG_EXP);
    }
    TopicCriteria topicCriteria=CmsCriteriaFactory.newTopicCriteria();
    topicCriteria.addNameEqualsCriterion(topic.getName());
    if (topic.getId() != null) {
      topicCriteria.addIdNotEqualsCriterion(topic.getId());
    }
    topicCriteria.setOffsetAndLimit(0,2);
    CmsQueryResult sameNameTopicsInTaxonomy=cmsQueryHandler.getNodesFromXPathQuery(session,topicCriteria);
    if (sameNameTopicsInTaxonomy.getTotalRowCount() != 0) {
      StringBuilder topicPaths=new StringBuilder();
      NodeIterator nodeIterator=sameNameTopicsInTaxonomy.getNodeIterator();
      while (nodeIterator.hasNext()) {
        topicPaths.append("String_Node_Str");
        topicPaths.append(nodeIterator.nextNode().getPath());
      }
      throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ topicPaths.toString());
    }
 else {
      Node cachedTopicNode=context.getNodeFromCache(topic.getName());
      if (cachedTopicNode != null && !cachedTopicNode.isSame(topicJcrNode)) {
        throw new RepositoryException("String_Node_Str" + topic.getName() + "String_Node_Str"+ "String_Node_Str"+ topic.getName());
      }
    }
    topicJcrNode.setProperty(CmsBuiltInItem.Name.getJcrName(),topic.getName());
  }
}