Tree is not appearing (or displayed) in the Left Navigation of the UI (Doc ID 2054418.1)

Last updated on OCTOBER 08, 2017

Applies to:

Oracle WebCenter Sites - Version 11.1.1.8.0 and later
Information in this document applies to any platform.

Symptoms

On : 11.1.1.8.0 version, WebCenter Sites

Tree is no longer displayed (or not appearing) in the Left Navigation of the UI and
the following error occurs.

ERROR
-----------------------
[2015-09-09 07:39:06,410 UTC] [ERROR] [.kernel.Default (self-tuning)'] [fatwire.logging.cs.request] Exception including resource /jsp/cs_deployed/UI/Layout/LeftNavigation/TreeAction.jsp
javax.servlet.ServletException: weblogic.servlet.jsp.CompilationException: Failed to compile JSP /jsp/cs_deployed/UI/Layout/LeftNavigation/TreeAction.jsp
TreeAction.jsp:73:35: The method join(Iterator, String) in the type StringUtils is not applicable for the arguments (List, String)
  treeData.put("tabs", StringUtils.join(filteredTabs, ","));

Cause

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