Vfrdtyky

File a.jsp has code:

<%

 Object OBJECT = smt...

%>



<jsp:include page="c.jsp"/>

File c.jsp has code:

<%

   do smth with OBJECT 

%>

File b.jsp has code:

<jsp:include page="c.jsp"/>

Problem is that b.jsp does not have code for creating/initialize a OBJECT and when workflow is such that b.jsp is supposed to be rendered there is a "OBJECT
cannot be resolved to a variable" error.

How to check if OBJECT exists in c.jsp page context?

You can use if condition in jsp like...

  <c:if test = "${object == null}">

     what you want to do...

  </c:if>

To use this syntax you need to add this line at the top of jsp page!

<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %>

And need to add JSTL jar at lib folder. You can get it from here

You can use <c:if /> taglib in Liferay. At the top section of your jsp file insert this line:

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

Then you can use the taglib as follows:

<c:if test="<%= object != null %>">

    <!-- HTML elements -->

    <%

        //scriptlet

    %>

</c:if>