Available themes not showing when using theme-loader plugin

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 5.2.3, 5.2.9 EE, 6.0.6 GA, 6.0.11 EE
• Fix Version/s: 5.2.X EE, 6.0.12 EE, 6.1.0 CE RC1
• Component/s: Dev Tools, Dev Tools > Plugins SDK
• Labels:
  • QA-R
• Branch Version/s:
  6.0.x, 5.2.x
• Backported to Branch:
  Committed

Steps to reproduce:

1. Create site1
2. Create page in site1
3. Export site to lar
4. Delete site1
5. Deploy theme-loader plugin
6. Create site2
7. Import lar into site2
8. Go to manage pages
9. Null pointer exception in tomcat log and available themes are not showing

14:31:10,099 ERROR [IncludeTag:154] java.lang.NullPointerException
at org.apache.jsp.html.portlet.layouts_005fadmin.look_005fand_005ffeel_005fthemes_jsp._jspService(look_005fand_005ffeel_005fthemes_jsp.java:975)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at com.liferay.portal.kernel.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:45)
at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:314)
at com.liferay.taglib.util.IncludeTag._doInclude(IncludeTag.java:395)
at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:91)
at org.apache.jsp.html.portlet.layouts_005fadmin.layout_005fset.look_005fand_005ffeel_jsp._jspx_meth_liferay_002dutil_005finclude_005f0(look_005fand_005ffeel_jsp.java:1096)
at org.apache.jsp.html.portlet.layouts_005fadmin.layout_005fset.look_005fand_005ffeel_jsp._jspService(look_005fand_005ffeel_jsp.java:911)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at com.liferay.portal.kernel.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:45)
at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:314)
at com.liferay.taglib.util.IncludeTag._doInclude(IncludeTag.java:395)
at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:91)
at org.apache.jsp.html.taglib.ui.form_005fnavigator.page_jsp._jspService(page_jsp.java:739)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at com.liferay.portal.kernel.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:45)
at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:314)