Changes in Taglibs when tomcat is migrated from 3.22 to 4.1

[Rajendar Goud]

Hi ,
iam running a web application running on tomcat3.22 with jdk1.3.1. This has some custom taglibs too..
i migrated it to tomcat4.1 with jdk 1.4.

i am facing errors which seems to be b/c of the custom tags.

Are there any changes that need to be done in Taglibs,when tomcat is migrated from 3.22 to tomcat4.1 ?

i compared the web.xml used by tomcat4.1 and also the api for taglibs supported by tomcat4.1 . i didnt see any major changes or may be i missed out something .

Could any one pls respond?

Thanks,
Rajendar

[Kunaal A Trehan]

Hi

I donot feel that because of taglib u re facing problem
Can u put the error that u re getting and the web.xml

Rgds
Kunal

[Rajendar Goud]

Kunal,
looking at the error, i too dont think its taglib problem . but some how i think its related to it.

the error is ArrayIndexOutOfBoundsException only.exception looks as follows

java.lang.ArrayIndexOutOfBoundsException: 10 >= 10
at java.util.Vector.elementAt(Vector.java:432)
at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:622)
at com.db.ta.services.taglib.table.CellTag.setVariables(CellTag.java:47)
at com.db.ta.services.taglib.table.CellTag.doStartTag(CellTag.java:37)
at org.apache.jsp.ETListContent_jsp._jspService(ETListContent_jsp.java:238)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:92)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:162)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
101781 [http-8080-Processor5] ERROR D1D1EC9BA674705C421C0C95681041F4 - ErrorToUser:
java.lang.ArrayIndexOutOfBoundsException: 10 >= 10
at java.util.Vector.elementAt(Vector.java:432)
at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:622)
at com.db.ta.services.taglib.table.CellTag.setVariables(CellTag.java:47)
at com.db.ta.services.taglib.table.CellTag.doStartTag(CellTag.java:37)
at org.apache.jsp.ETListContent_jsp._jspService(ETListContent_jsp.java:238)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:92)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:162)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)



<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- edited with XML Spy v4.2 U (http://www.xmlspy.com) by Giselle Larcombe (Deutsche Bank) -->
<!--XML file for NT-Integration-->
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2.2.dtd">
<web-app>
<display-name>
Display
</display-name>
<description>
some desc
</description>
<!-- Servlet to activate Log4J -->
<servlet>
<servlet-name>com.db.ta.services.log.log4JInit</servlet-name>
<servlet-class>com.db.ta.services.log.Log4JInit</servlet-class>
<init-param>
<param-name>log4j-init-file</param-name>
<param-value>WEB-INF/classes/log4j.lcf</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Servlet to activate Status Handler -->
<servlet>
<servlet-name>some servlet</servlet-name>
<servlet-class>some servlet class</servlet-class>
<init-param>
<param-name>status-file</param-name>
<param-value>WEB-INF/data/StatusDescription.csv</param-value>
</init-param>
<init-param>
<param-name>action-file</param-name>
<param-value>WEB-INF/data/Action.csv</param-value>
</init-param>
<init-param>
<param-name>permission-file</param-name>
<param-value>WEB-INF/data/Permissions.csv</param-value>
</init-param>
<init-param>
<param-name>with-database</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>active</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>6</load-on-startup>
</servlet>
<!-- Standard Action Servlet Configuration (with debugging) -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>properties/ApplicationResources</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>validate</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- Standard Action Servlet Mapping -->

<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>
public/jsp/index.jsp
</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>
xsl.tld
</taglib-uri>
<taglib-location>
/WEB-INF/tlds/xsl.tld
</taglib-location>
</taglib>
<taglib>
<taglib-uri>
log-taglib.tld
</taglib-uri>
<taglib-location>
/WEB-INF/tlds/log-taglib.tld
</taglib-location>
</taglib>
<!-- Struts Tag Library Descriptors -->
<taglib>
<taglib-uri>/WEB-INF/tlds/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/tlds/struts-bean.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/tlds/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/tlds/struts-html.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/tlds/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/tlds/struts-logic.tld</taglib-location>
</taglib>
</web-app>





Thanks
Rajendar

[Rajendar Goud]

I am currently testing the above thing on JDK1.5 with Tomcat4.1.31 .
Do i need to have the JSTL1.1?tomcat4.1.31 comes along with JSTL i guess!

iam invoking the custom tag libraries as usual and its running fine for few records and then i get the above error..

<%@ taglib uri="xsl.tld" prefix="views" %>

and the code

<views:jspTable model="<%=ETList.getSelectedListView().getModel() %>" >
<views:headingOpen><tr></views:headingOpen>
<views:headingCell>
<% if(column.intValue()==0){%>
<%="<th class=\"tblHide\" height=\"1\" valign=\"top\"> </th>"%>
<% }else{%>
<%="<th class=\"tblHide\" height=\"1\" valign=\"top\">" + heading + "</th>"%><% } %>
</views:headingCell>
<!-- end: the header -->
<!-- begin: the rows -->
<views:rows>
<views:rowOpen><tr></views:rowOpen>
<views:cell>
some logic...
</views:cell>
</views:rows>
<!-- end: the rows -->
</views:jspTable>

i guess theres no problem with the above tags.. why its throwing above exception is not understandable ..

can any one check it out pls?


Thanks,
Raj

[Rajendar Goud]

Hi ,
i narrowed down the code and observed that the error is coming from the
cellTag .
here is the code used by CellTag

public CellTag()
{
sbOut = new StringBuffer();
}

public int doStartTag()
throws JspException
{
parent = (RowsTag)TagSupport.findAncestorWithClass(this, some.class);
if(parent == null)
{
throw new JspTagException("CellTag must be enclosed in a RowsTag");
} else
{
sbOut.append(parent.getRowOpen());
setVariables();
return 2;
}
}

private void setVariables()
{
Object valObj = null;
if (parent!=null){
valObj = parent.getModel().getValueAt(parent.getRow(), col);
}
if(valObj == null)
valObj = "NULL";
pageContext.setAttribute("value", valObj);
pageContext.setAttribute("column", new Integer(col));
}

public int doAfterBody()
throws JspException
{
if(bodyContent != null)
{
String bodyTag = bodyContent.getString();
sbOut.append(bodyTag);
bodyContent.clearBody();
if(++col < parent.getModel().getColumnCount())
{
setVariables();
return 2;
} else
{
sbOut.append(parent.getRowClose());
return 0;
}
}
else
return SKIP_BODY;
}

public int doEndTag()
throws JspException
{
try
{
if(bodyContent != null)
bodyContent.getEnclosingWriter().write(sbOut.toString());
}
catch(IOException ex)
{
throw new JspException("IO Error: " + ex.getMessage());
}
return 6;
}

private int col;
private StringBuffer sbOut;
private RowsTag parent;


iam getting the indexoutofbounds exception in the setVariables() method of doStartTag.

whats wrong with that method?

b/c as i remove the cellTag ,then iam getting the jsp page compiled and is run properly.

any help appreciated

Thanks
Raj
not able to unders