Program: 101386
Project: 101386
Buggy source:
private void createEditorArea(){
  Panel editorArea=new Panel();
  GridLayout grid=new GridLayout(2,3);
  grid.setSizeFull();
  grid.setSpacing(true);
  keyLabel=new Label();
  keyLabel.setValue(Messages.getString("String_Node_Str"));
  grid.addComponent(keyLabel,0,0,1,0);
  grid.setColumnExpandRatio(0,1.0f);
  grid.setColumnExpandRatio(1,1.0f);
  orignal=new TextArea();
  orignal.setRows(3);
  orignal.setReadOnly(true);
  orignal.setWidth(100,TextArea.UNITS_PERCENTAGE);
  grid.addComponent(orignal);
  translated=new TextArea();
  translated.setRows(3);
  translated.setWidth(100,TextArea.UNITS_PERCENTAGE);
  translated.setNullRepresentation("String_Node_Str");
  translated.addListener((TextChangeListener)this);
  translated.setWriteThrough(true);
  translated.setImmediate(true);
  grid.addComponent(translated);
  orignalComment=new TextArea();
  orignalComment.setReadOnly(true);
  orignalComment.setWidth(100,TextArea.UNITS_PERCENTAGE);
  orignalComment.setRows(3);
  orignalComment.setNullRepresentation("String_Node_Str");
  grid.addComponent(orignalComment);
  translatedComment=new TextArea();
  translatedComment.setImmediate(true);
  translatedComment.setWidth(100,TextArea.UNITS_PERCENTAGE);
  translatedComment.setRows(3);
  translatedComment.setNullRepresentation("String_Node_Str");
  translatedComment.setInputPrompt(Messages.getString("String_Node_Str"));
  translatedComment.setWriteThrough(true);
  grid.addComponent(translatedComment);
  safeButton=new Button();
  safeButton.setEnabled(false);
  safeButton.setCaption(Messages.getString("String_Node_Str"));
  safeButton.addListener(new ClickListener(){
    @Override public void buttonClick(    ClickEvent event){
      setDirty(false);
      PropertyPersistenceService propertyPersistence=MainDashboard.getCurrent().getPropertyPersistence();
      propertyPersistence.saveProperties(descriptor,target);
      layout.getWindow().showNotification(Messages.getString("String_Node_Str"),descriptor.getLocation().lastSegment());
    }
  }
);
  editorArea.setContent(grid);
  HorizontalLayout buttonArea=new HorizontalLayout();
  buttonArea.setSpacing(true);
  layout.addComponent(editorArea);
  layout.setExpandRatio(editorArea,0);
  buttonArea.addComponent(safeButton);
  Button editTemplate=new Button(Messages.getString("String_Node_Str"));
  editTemplate.addListener(new ClickListener(){
    @Override public void buttonClick(    ClickEvent event){
      BreadCrumb crumb=MainDashboard.getCurrent().getBreadcrumbs();
      crumb.walkTo("String_Node_Str");
    }
  }
);
  buttonArea.addComponent(editTemplate);
  layout.addComponent(buttonArea);
  layout.setExpandRatio(buttonArea,0);
}

Fixed version (ground truth):
private void createEditorArea(){
  Panel editorArea=new Panel();
  GridLayout grid=new GridLayout(2,3);
  grid.setSizeFull();
  grid.setSpacing(true);
  keyLabel=new Label();
  keyLabel.setValue(Messages.getString("String_Node_Str"));
  grid.addComponent(keyLabel,0,0,1,0);
  grid.setColumnExpandRatio(0,1.0f);
  grid.setColumnExpandRatio(1,1.0f);
  orignal=new TextArea();
  orignal.setRows(3);
  orignal.setReadOnly(true);
  orignal.setWidth(100,TextArea.UNITS_PERCENTAGE);
  grid.addComponent(orignal);
  translated=new TextArea();
  translated.setRows(3);
  translated.setInvalidCommitted(true);
  translated.setWidth(100,TextArea.UNITS_PERCENTAGE);
  translated.setNullRepresentation("String_Node_Str");
  translated.addListener((TextChangeListener)this);
  translated.setWriteThrough(true);
  translated.setImmediate(true);
  translated.setTextChangeEventMode(TextChangeEventMode.LAZY);
  translated.setTextChangeTimeout(500);
  grid.addComponent(translated);
  orignalComment=new TextArea();
  orignalComment.setReadOnly(true);
  orignalComment.setWidth(100,TextArea.UNITS_PERCENTAGE);
  orignalComment.setRows(3);
  orignalComment.setNullRepresentation("String_Node_Str");
  grid.addComponent(orignalComment);
  translatedComment=new TextArea();
  translatedComment.setImmediate(true);
  translatedComment.setWidth(100,TextArea.UNITS_PERCENTAGE);
  translatedComment.setRows(3);
  translatedComment.setNullRepresentation("String_Node_Str");
  translatedComment.setInputPrompt(Messages.getString("String_Node_Str"));
  translatedComment.setWriteThrough(true);
  translatedComment.addListener((TextChangeListener)this);
  grid.addComponent(translatedComment);
  safeButton=new Button();
  safeButton.setEnabled(false);
  safeButton.setCaption(Messages.getString("String_Node_Str"));
  safeButton.addListener(new ClickListener(){
    @Override public void buttonClick(    ClickEvent event){
      setDirty(false);
      PropertyPersistenceService propertyPersistence=MainDashboard.getCurrent().getPropertyPersistence();
      propertyPersistence.saveProperties(descriptor,target);
      layout.getWindow().showNotification(Messages.getString("String_Node_Str"),descriptor.getLocation().lastSegment());
    }
  }
);
  editorArea.setContent(grid);
  HorizontalLayout buttonArea=new HorizontalLayout();
  buttonArea.setSpacing(true);
  layout.addComponent(editorArea);
  layout.setExpandRatio(editorArea,0);
  buttonArea.addComponent(safeButton);
  Button editTemplate=new Button(Messages.getString("String_Node_Str"));
  editTemplate.addListener(new ClickListener(){
    @Override public void buttonClick(    ClickEvent event){
      BreadCrumb crumb=MainDashboard.getCurrent().getBreadcrumbs();
      crumb.walkTo("String_Node_Str");
    }
  }
);
  buttonArea.addComponent(editTemplate);
  layout.addComponent(buttonArea);
  layout.setExpandRatio(buttonArea,0);
}