Bug 69737 [Dialogs] New folder dialog is too tall
File > New > Folder I can see only the top half of the textbox 'Folder Name'. When I resize by means of the mouse cursor, it becomes normal.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/misc/ContainerSelectionGroup.java
return null;
            else
                return selectedContainer.getFullPath();
        }
    }
    /**
     * Gives focus to one of the widgets in the group, as determined by the group.
     */
    public void setInitialFocus() {
        if (allowNewContainerName)
            containerNameField.setFocus();
        else
            treeViewer.getTree().setFocus();
    }
    /**
     * Sets the selected existing container.
     */
    public void setSelectedContainer(IContainer container) {
        selectedContainer = container;
        
        List itemsToExpand = new ArrayList();
        IContainer parent = container.getParent();
        while (parent != null) {
            itemsToExpand.add(0, parent);
            parent = parent.getParent();
        }
        treeViewer.setExpandedElements(itemsToExpand.toArray());
        treeViewer.setSelection(new StructuredSelection(container), true);
    }
}