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Actions that implement DynamicMenuContent interface are expected to not cache the MenuPresenters since they are dynamic. However this behaviour is done correctly for two of the three presenters. i.e. Presenter.Popup and Presenter.Menu checks for DynamicMenuContent while Presenter.Toolbar does not (see org.openide.util.actions.Presenter.java) Why is the behaviour different only for Presenter.Toolbar and not the other two. This leads to different menu items being shown for the same action when shown in the toolbar (as a DropDown menu) vs when shown in the file menu at the top. All three Presenters should check if the Action implements DynamicMenuContent.
What concrete actions implementing Presenter.Toolbar are you talking about?
The current behavior is fine.
The issue was with my own implementation of an Action class that implements DynamicContentMenu, Presenter.Popup, and Presenter.Toolbar that I displayed in both the Menu Bar and ToolBar. I will simply add a listener to detect changes and update the toolbar button's dropdown menu accordingly...; The menu bar does not cache the component(JMenu) returned by Action.getPopupPresenter() (i.e. an independent menu is created each time for the Menu Bar) while the toolbar makes only one call to getToolbarPresenter() (since the toolbar is always displayed while the menu bar requires clicks in order to become visible, then the current behavior is correct).It was my understanding that was flawed. I assumed Action.getToolbarPresenter() would be called when I clicked on the drop-down arrow on my button, but, instead the button in the toolbar is the Component returned by getToolbarPresenter() function, thus I need to handle the dynamic content in the Component returned by the getToolbarPresenter() method. I used an identical pattern for getPopupPresenter() and getToolbarPresenter() functions, but it is now clear that they need different behavior and that this is how it should be given the manner in which they are displayed.