JWSDP Custom Tags (finding tag handler class)

Question

Hi,
ive been using the Java Web Services Development Pack
ive tried several examples of creating custom tags all seem to have different directory structures and none seem to work. Heres my setup...
rootdir -> index.jsp
rootdir -> WEB-INF -> web.xml
rootdir -> WEB-INF -> tlds -> demo.tld (the tag library descriptor)
rootdir -> WEB-INF -> classes -> demo -> tags -> Greeter.java (the tag handler class)
there are some other folders created by deploytool but they are empty.
heres demo.tld...
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>demo</short-name>
<uri>DemoTags</uri>
<tag>
<name>greeter</name>
<tag-class>demo.tags.Greeter</tag-class>
<body-content>empty</body-content>
</tag>
</taglib>
here is the tag handler class Greeter.java...
package demo.tags;
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
public class Greeter extends SimpleTagSupport {
public void doTag() throws JspException {
PageContext pageContext = (PageContext) getJspContext();
JspWriter out = pageContext.getOut();
try {
out.println("Hello World");
} catch (Exception e) {
// Ignore.
and heres the code in index.jsp...
<%@taglib prefix="t" uri="DemoTags" %>
<t:greeter />
Id love to know if these directory structures are fixed and where they are specified - its confusing the way so many examples show differences.
this is the exception i get when trying to run index.jsp through the admin page (localhost:4848)
org.apache.jasper.JasperException: /index.jsp(11,0) Unable to load tag handler class "demo.tags.Greeter" for tag "t:greeter"
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Answer 1

Sincere Apologies - It might be a good idea to compile my java files so i actually have classes in my classes directory !!
i think a build.xml file is needed for ant to compile everything that is needed now.
and the beat goes on !