Tiles: Unable to convert a String to java.lang.Object

["Kern P., DP ITS, SCP, M" <P....@deutschepost.de>]

Hello,

I'm trying to read some tiles documentation from the webapp
tiles-documentation but I get the following error 
on page /tiles-documentation/test/quickOverview.jsp :
-------------------------------------------------------------------
2003-07-09 12:44:31 - Ctx(/tiles-documentation) : Compiling:
/test/testAll.jsp to test.testAll_1
2003-07-09 12:44:31 - Ctx(/tiles-documentation) : compile error: req=R(
/tiles-documentation + /test/testAll.jsp + null)
 - org.apache.jasper.compiler.CompileException:
F:\BSM\Programme\jakarta-tomcat-3.3.1a\webapps\tiles-documentation\test\
testAll.jsp(14,5) Unable to convert a String to java.lang.Object for
attribute value
-------------------------------------------------------------------

The complete stack trace is at the end of the mail.

I'm using the following software
--
Tomcat: 3.3.1a
JDK: 1.2.2
Struts: 1.1
--
For technical reasons we can not use the newest version of tomcat and the
jdk ?

What can I do to use tiles in my setup?
I searched google for more than an hour but I found nothing helpful.

Thanks and best regards.

Peter


Complete stack trace:

2003-07-09 12:44:31 - Ctx(/tiles-documentation) : Compiling:
/test/testAll.jsp to test.testAll_1
2003-07-09 12:44:31 - Ctx(/tiles-documentation) : compile error: req=R(
/tiles-documentation + /test/testAll.jsp + null)
 - org.apache.jasper.compiler.CompileException:
F:\BSM\Programme\jakarta-tomcat-3.3.1a\webapps\tiles-documentation\test\
testAll.jsp(14,5) Unable to convert a String to java.lang.Object for
attribute value
        at
org.apache.jasper.compiler.TagBeginGenerator.convertString(TagBeginGenerator
.java:268)
        at
org.apache.jasper.compiler.TagBeginGenerator.generateSetters(TagBeginGenerat
or.java:208)
        at
org.apache.jasper.compiler.TagBeginGenerator.generateServiceMethodStatements
(TagBeginGenerator.java:315)
        at
org.apache.jasper.compiler.TagBeginGenerator.generate(TagBeginGenerator.java
:374)
        at
org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
spParseEventListener.java:792)
        at
org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
stener.java:221)
        at
org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
ventListener.java:176)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210)
        at
org.apache.tomcat.facade.JasperLiaison.jsp2java(JspInterceptor.java:790)
        at
org.apache.tomcat.facade.JasperLiaison.processJspFile(JspInterceptor.java:73
1)
        at
org.apache.tomcat.facade.JspInterceptor.requestMap(JspInterceptor.java:506)
        at
org.apache.tomcat.core.ContextManager.processRequest(ContextManager.java:968
)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.doInclude(RequestDispatcherIm
pl.java:353)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl
.java:189)
        at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:413)
        at
org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:137)
        at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:177)
        at
org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:756)
        at
org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.ja
va:881)
        at
org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:473)
        at layout.classicLayout_1._jspService(classicLayout_1.java:235)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java)
        at
org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
        at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
        at org.apache.tomcat.core.Handler.service(Handler.java:235)
        at
org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.doInclude(RequestDispatcherIm
pl.java:402)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl
.java:189)
        at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:413)
        at
org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:137)
        at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:177)
        at
org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:756)
        at
org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.ja
va:881)
        at
org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:473)
        at test.quickOverview_1._jspService(quickOverview_1.java:94)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java)
        at
org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
        at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
        at org.apache.tomcat.core.Handler.service(Handler.java:235)
        at
org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:91
7)
        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
        at
org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10I
nterceptor.java:176)
        at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:516)
        at java.lang.Thread.run(Thread.java:479)

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