layoutTypePortlet.removePortletId is not working in PostLoginHook

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 6.2.5 CE GA6
• Fix Version/s: None
• Component/s: Dev Tools, Dev Tools > Plugins SDK
• Labels: None
• Fix Priority: 3
• OS:
  Ubuntu LTS 14.04
• JDK:
  Oracle Sun JDK 7
• Application Servers:
  GlassFish 4.0
• Databases:
  MySQL 5.7

In a postLogin Hook, trying to remove all opened portlets using the following code:

 user = UserLocalServiceUtil.getUserById(userId);
                 long privatePlid = user.getGroup().getDefaultPrivatePlid();
                 Layout layout = LayoutLocalServiceUtil.getLayout(privatePlid);
                 LayoutTypePortlet layoutTypePortlet = (LayoutTypePortlet) layout
                         .getLayoutType();
                 List<String> portletIds = layoutTypePortlet.getPortletIds();
                 for (String portletId : portletIds) {
                     layoutTypePortlet.removePortletId(userId, portletId);
                 }
                LayoutLocalServiceUtil.updateLayout(layout.getGroupId(),
                        layout.isPrivateLayout(), layout.getLayoutId(),
                        layout.getTypeSettings());

However no portlet removed, and the layout still the same.

Liferay 6.2 deployed on glassfish 4, and java version 1.7.0_79