HTTP 500 Internel server error in Custom tag program on Weblogic 8.1

Question

Dear sir,
Please attend my problem...
I face the Error 500 Internel server error when I rum the custom tag program on weblogic 8.1.
My program Structure is:
Program>Home.jsp
>WEB-INF>classes>mypack>MyTag.java, MyTag.class
>tlds>taglib.tld
>web.xml
Home.jsp:
<%@ taglib uri="/WEB-INF/tlds/taglib" prefix="Kumar" %>
<Kumar:hello name="Vijay">
It is a Tag Body<br>
</neeraj:hello>
taglib.tld:
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<uri>/WEB-INF/tlds/taglib</uri>
<tag>
<name>hello</name>
<tag-class>mypack.MyTag</tag-class>
<attribute>
<name>name</name>
<required>true</required>
</attribute>
</tag>
</taglib>
MyTag.java:
package mypack;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class MyTag extends TagSupport
String name;
public void setName(String c)
name=c;
public int doStartTag()
return EVAL_BODY_INCLUDE;
public int doEndTag()
try
JspWriter out=pageContext.getOut();
out.print("Good Night "+name);
catch(Exception e)
return EVAL_PAGE;
web.xml:
<web-app>
<welcome-file-list>
<welcome-file>/Home.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>/WEB-INF/tlds/taglib</taglib-uri>
<taglib-location>/WEB-INF/tlds/taglib.tld</taglib-location>
</taglib>
</web-app>
Allthough this program are run on NetBean6.1.In NetBean6.1, i am not specify the web.xml file.Please Help me..

Answer 1

With an [HTTP status code|http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html] of 500, the most helpful information for debugging the problem is usually in the server's log file. There should be a stack trace in the web or application server's log file that will contain the specific root cause of this. It is often a NullPointerException or ClassNotFoundException or other "common" exception.