I have been unable to get Tiles to work under Struts 1.3.5. I also
noticed that none of the Struts 1.3.5 examples use Tiles. Below is a
summary of the problem. The only place where my implementation deviates
from the documentation is in the tiles-defs.xml file. If anyone know
what I need to do to get it to work, it would be appreciated. Thanks.
==========
I installed Tomcat 5.5.20 onto a Red Hat Linux 4.0 box. I opened up
the "blank.war" app that comes with Struts 1.3.5. I modified web.xml
and struts-config.xml as specified in the Struts 1.3.5 Tiles
documentation.
Here's my test JSP:
<%@ taglib uri="http://struts.apache.org/tags-tiles"; prefix="tiles" %>
<html>
<head>
<title>FooBar</title>
</head>
<body>
<tiles:insert attribute="foo"/>
</body>
</html>
Here's my tiles-defs.xml:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
"http://struts.apache.org/dtds/tiles-config_1_3.dtd";>
<tiles-definitions>
<definition name="foo" path="/bar.jsp" >
</definition>
</tiles-definitions>
I get this error:
org.apache.jasper.JasperException: Exception in JSP: /parent.jsp:8
5: <title>FooBar</title>
6: </head>
7: <body>
8: <tiles:insert attribute="foo"/>
9: </body>
10: </html>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServle
tWrapper.java:506)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:395)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
org.apache.struts.tiles.taglib.InsertTag.processAttribute(InsertTag.java
:687)
org.apache.struts.tiles.taglib.InsertTag.createTagHandler(InsertTag.java
:478)
org.apache.struts.tiles.taglib.InsertTag.doStartTag(InsertTag.java:438)
org.apache.jsp.parent_jsp._jspx_meth_tiles_insert_0(parent_jsp.java:85)
org.apache.jsp.parent_jsp._jspService(parent_jsp.java:59)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:334)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
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