Program: 140119
Project: 140119
Buggy source:
public void chartMouseClicked(ChartMouseEvent event){
  ChartEntity chartEntity=event.getEntity();
  if (chartEntity != null) {
    CategoryItemEntity cateEntity=(CategoryItemEntity)chartEntity;
    IDataEntity dataEntity=(IDataEntity)cateEntity.getDataset();
    ChartDataEntity currentDataEntity=null;
    ChartDataEntity[] dataEntities=dataEntity.getDataEntities();
    if (dataEntities.length == 1) {
      currentDataEntity=dataEntities[0];
    }
 else {
      for (      ChartDataEntity entity : dataEntities) {
switch (chartType) {
case FREQUENCE_STATISTICS:
case LOW_FREQUENCE_STATISTICS:
case PATTERN_FREQUENCE_STATISTICS:
case PATTERN_LOW_FREQUENCE_STATISTICS:
          if (cateEntity.getColumnKey().compareTo(entity.getLabel()) == 0) {
            currentDataEntity=entity;
          }
        break;
default :
      if (cateEntity.getRowKey().compareTo(entity.getLabel()) == 0) {
        currentDataEntity=entity;
      }
  }
}
}
PopupMenu menu=new PopupMenu(DefaultMessagesImpl.getString("String_Node_Str"));
if (currentDataEntity != null) {
final Indicator currentIndicator=currentDataEntity.getIndicator();
int createPatternFlag=0;
MenuItemEntity[] itemEntities=ChartTableMenuGenerator.generate(chartType,analysis,currentDataEntity);
for (final MenuItemEntity itemEntity : itemEntities) {
  MenuItem item=new MenuItem(itemEntity.getLabel());
  item.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent arg0){
      Display.getDefault().asyncExec(new Runnable(){
        public void run(){
          ChartTableFactory.viewRecordInDataExplorer(analysis,currentIndicator,itemEntity.getQuery());
        }
      }
);
    }
  }
);
  menu.add(item);
  if ((currentIndicator instanceof PatternFreqIndicator || currentIndicator instanceof PatternLowFreqIndicator) && createPatternFlag == 0) {
    MenuItem itemCreatePatt=new MenuItem("String_Node_Str");
    final PatternTransformer pattTransformer=new PatternTransformer(DbmsLanguageFactory.createDbmsLanguage(analysis));
    itemCreatePatt.addActionListener(new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        Display.getDefault().asyncExec(new Runnable(){
          public void run(){
            ChartTableFactory.createPattern(analysis,itemEntity,pattTransformer);
          }
        }
);
      }
    }
);
    menu.add(itemCreatePatt);
  }
}
chartPanel.add(menu);
menu.show(chartPanel,event.getTrigger().getX(),event.getTrigger().getY());
createPatternFlag++;
}
}
}

Fixed version (ground truth):
public void chartMouseClicked(ChartMouseEvent event){
  ChartEntity chartEntity=event.getEntity();
  if (chartEntity != null) {
    CategoryItemEntity cateEntity=(CategoryItemEntity)chartEntity;
    IDataEntity dataEntity=(IDataEntity)cateEntity.getDataset();
    ChartDataEntity currentDataEntity=null;
    ChartDataEntity[] dataEntities=dataEntity.getDataEntities();
    if (dataEntities.length == 1) {
      currentDataEntity=dataEntities[0];
    }
 else {
      for (      ChartDataEntity entity : dataEntities) {
switch (chartType) {
case FREQUENCE_STATISTICS:
case LOW_FREQUENCE_STATISTICS:
case PATTERN_FREQUENCE_STATISTICS:
case PATTERN_LOW_FREQUENCE_STATISTICS:
          if (cateEntity.getColumnKey().compareTo(entity.getLabel()) == 0) {
            currentDataEntity=entity;
          }
        break;
default :
      if (cateEntity.getRowKey().compareTo(entity.getLabel()) == 0) {
        currentDataEntity=entity;
      }
  }
}
}
PopupMenu menu=new PopupMenu(DefaultMessagesImpl.getString("String_Node_Str"));
if (currentDataEntity != null) {
final Indicator currentIndicator=currentDataEntity.getIndicator();
int createPatternFlag=0;
MenuItemEntity[] itemEntities=ChartTableMenuGenerator.generate(chartType,analysis,currentDataEntity);
for (final MenuItemEntity itemEntity : itemEntities) {
  MenuItem item=new MenuItem(itemEntity.getLabel());
  item.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent arg0){
      Display.getDefault().asyncExec(new Runnable(){
        public void run(){
          TdDataProvider tdDataProvider=SwitchHelpers.TDDATAPROVIDER_SWITCH.doSwitch(analysis.getContext().getConnection());
          String query=itemEntity.getQuery();
          String editorName=currentIndicator.getName();
          CorePlugin.getDefault().runInDQViewer(tdDataProvider,query,editorName);
        }
      }
);
    }
  }
);
  menu.add(item);
  if ((currentIndicator instanceof PatternFreqIndicator || currentIndicator instanceof PatternLowFreqIndicator) && createPatternFlag == 0) {
    MenuItem itemCreatePatt=new MenuItem("String_Node_Str");
    final PatternTransformer pattTransformer=new PatternTransformer(DbmsLanguageFactory.createDbmsLanguage(analysis));
    itemCreatePatt.addActionListener(new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        Display.getDefault().asyncExec(new Runnable(){
          public void run(){
            ChartTableFactory.createPattern(analysis,itemEntity,pattTransformer);
          }
        }
);
      }
    }
);
    menu.add(itemCreatePatt);
  }
}
chartPanel.add(menu);
menu.show(chartPanel,event.getTrigger().getX(),event.getTrigger().getY());
createPatternFlag++;
}
}
}