Bug 17826 [Wizards] New folder wizard is very large if you are creating the folder in a container with a very long path
F1 1) Create a folder with a very long name 2) Select the folder and open the new folder wizard, it is very wide. Similar with new file The Java creation wizards do not have this problem.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/misc/ContainerSelectionGroup.java
private Listener listener;
    
    private boolean allowNewContainerName = true;
    
    private boolean showClosedProjects = true;
    
    private IContainer selectedContainer;
    
    private Text containerNameField;
    TreeViewer treeViewer;
    
    private static final String DEFAULT_MSG_NEW_ALLOWED = IDEWorkbenchMessages.ContainerGroup_message;
    private static final String DEFAULT_MSG_SELECT_ONLY = IDEWorkbenchMessages.ContainerGroup_selectFolder;
    
    private static final int SIZING_SELECTION_PANE_WIDTH = 320;
    private static final int SIZING_SELECTION_PANE_HEIGHT = 300;
    /**
     * Creates a new instance of the widget.
     *
     * @param parent The parent widget of the group.
     * @param listener A listener to forward events to. Can be null if
     *	 no listener is required.
     * @param allowNewContainerName Enable the user to type in a new container
     *  name instead of just selecting from the existing ones.
     */