Setting custom theme is not possible if not using logo

• Type: Bug
• Status: Closed
• Resolution: Duplicate
• Affects Version/s: 6.1.10 EE GA1, 6.2.0 CE M2
• Fix Version/s: --Sprint 11/12, 6.2.0 CE M2
• Component/s: Sites Management
• Labels: None
• Git Pull Request: https://github.com/matethurzo/liferay-portal/pull/106

Steps to reproduce

1. Control Panel> Portal Settings> Display>Uncheck [Allow site administrators to use their own logo?]
2. Go to Manage Site Pages
3. Change the theme of the public/private pages
4. Press Save

Expected result: the new theme is applied on the selected site

Actual result:

Exception generated and the portlet became temporarily unavailable:

19:53:24,308 ERROR [render_portlet_jsp:154] java.lang.NullPointerException
at com.liferay.portlet.layoutsadmin.action.EditLayoutSetAction.updateLogo(EditLayoutSetAction.java:209)
at com.liferay.portlet.layoutsadmin.action.EditLayoutSetAction.updateLayoutSet(EditLayoutSetAction.java:170)
at com.liferay.portlet.layoutsadmin.action.EditLayoutSetAction.processAction(EditLayoutSetAction.java:80)
at com.liferay.portal.struts.PortletRequestProcessor.process(PortletRequestProcessor.java:175)
at com.liferay.portlet.StrutsPortlet.processAction(StrutsPortlet.java:190)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:651)
at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:686)
at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:361)
at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:856)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:635)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:246)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:174)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:538)