Custom button with action listener - will not invoke action listener

Question

Hi
For whatever reason, I cannot find a concise example of a simple custom component that can invoke an action listener. The tutorials I've read so far either ignore this fundamental topic or only make the slightest make reference to it.
The best I have come up with - in terms of a simple prototype is below... but, the action listener is never invoked.... Can someone tell me what I am missing (full code below). Hopefully, what is missing or incorrect will be obvious to you JSF experts out there.
Thanks for any help!!
-f
tld
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
  <tlib-version>0.01</tlib-version>
  <jsp-version>1.2</jsp-version>
  <short-name>jsfcustomcomponent</short-name>
  <uri>http://jsfcustomcomponent/</uri>
  <description><![CDATA[jsf custom component tags]]>  </description>
  <tag>
    <name>specialBtnTag</name>
    <tag-class>jsfcustomcomponent.SpecialBtnTag</tag-class>
    <attribute>
      <name>value</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[button value]]></description>
    </attribute>
    <attribute>
      <name>actionListener</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[action listener]]> </description>
    </attribute>
  </tag>
</taglib>
SpecialBtnComponent
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.el.*;
import javax.faces.event.*;
public class SpecialBtnComponent
    extends UIComponentBase implements ActionSource
    public static final String COMPONENT_TYPE = "SpecialBtnComponent";
    public static final String RENDERER_TYPE = "SpecialBtnRenderer";
    public String getFamily()
        return COMPONENT_TYPE;
    public SpecialBtnComponent()
        super();
        setRendererType(SpecialBtnComponent.RENDERER_TYPE);
    private String value;
    public void setValue(String value, FacesContext facesContext)
        this.value = value;
    public String getValue()
        if (null != value)
            return value;
        ValueBinding _vb = getValueBinding("value");
        if (_vb != null)
            return (String) _vb.getValue(getFacesContext());
        else
            return null;
    private MethodBinding action = null;
    public MethodBinding getAction()
        return action;
    public void setAction(MethodBinding methodBinding)
        this.action = action;
    private MethodBinding actionListener = null;
    public MethodBinding getActionListener()
        return (this.actionListener);
    public void setActionListener(MethodBinding methodBinding)
        this.actionListener = actionListener;
    public boolean isImmediate()
        return false;
    public void setImmediate(boolean _boolean)
        //this.immediate = immediate;
    public void addActionListener(ActionListener actionListener)
        addFacesListener(actionListener);
    public ActionListener[] getActionListeners()
        return (ActionListener[]) getFacesListeners(ActionListener.class);
    public void removeActionListener(ActionListener actionListener)
        removeFacesListener(actionListener);
    public Object saveState(FacesContext context)
        Object values[] = new Object[5];
        values[0] = super.saveState(context);
        values[1] = value;
        values[2] = saveAttachedState(context, action);
        values[3] = saveAttachedState(context, actionListener);
        return ( (Object) (values));
    public void restoreState(FacesContext context, Object state)
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);
        value = (String) values[1];
        action = (MethodBinding) restoreAttachedState(context, values[2]);
        actionListener = (MethodBinding) restoreAttachedState(context, values[3]);
    public void broadcast(FacesEvent event) throws AbortProcessingException
        super.broadcast(event);
        if (event instanceof ActionEvent)
            FacesContext context = getFacesContext();
            MethodBinding mb = getActionListener();
            if (mb != null)
                mb.invoke(context, new Object[]
                          {event});
            ActionListener listener = context.getApplication().getActionListener();
            if (listener != null)
                listener.processAction( (ActionEvent) event);
    public void queueEvent(FacesEvent e)
        if (e instanceof ActionEvent)
            if (isImmediate())
                e.setPhaseId(PhaseId.APPLY_REQUEST_VALUES);
            else
                e.setPhaseId(PhaseId.INVOKE_APPLICATION);
        super.queueEvent(e);
SpecialBtnRenderer
package jsfcustomcomponent;
import java.util.*;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.event.*;
import javax.faces.render.*;
public class SpecialBtnRenderer
    extends Renderer
    String value;
    public SpecialBtnRenderer()
    public void decode(FacesContext context, UIComponent component)
        Map requestMap = context.getExternalContext().getRequestParameterMap();
        String clientId = component.getClientId(context);
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        String value = (String) requestMap.get(clientId);
        if (null != value)
            specialBtnComponent.setValue(value, context);
        ActionEvent actionEvent = new ActionEvent(specialBtnComponent);
        specialBtnComponent.queueEvent(actionEvent);
    public void encodeEnd(FacesContext context, UIComponent component) throws java.io.IOException
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        ResponseWriter writer = context.getResponseWriter();
        String clientId = component.getClientId(context);
        value = (String) component.getAttributes().get("value");
        if (value == null)
            value = "defaultValue";
        buildSpecialBtn(writer, value, clientId, specialBtnComponent);
    private void buildSpecialBtn(ResponseWriter writer, String value, String clientId, SpecialBtnComponent component) throws java.io.IOException
        writer.startElement("table", component);
        writer.startElement("tbody", component);
        writer.startElement("tr", component);
        writer.startElement("td", component);
        value = String.valueOf(value);
        writer.startElement("input", component);
        writer.writeAttribute("type", "submit", null);
        writer.writeAttribute("name", clientId, "clientId");
        writer.writeAttribute("value", value, null);
        writer.endElement("input");
        writer.endElement("td");
        writer.endElement("tr");
        writer.endElement("tbody");
        writer.endElement("table");
SpecialBtnTag
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.el.*;
import javax.faces.webapp.*;
import com.sun.faces.util.*;
public class SpecialBtnTag
    extends UIComponentTag
    public String value = null;
    public String actionListener = null;
    public String getComponentType()
        return SpecialBtnComponent.COMPONENT_TYPE;
    public String getRendererType()
        return SpecialBtnComponent.RENDERER_TYPE;
    protected void setProperties(UIComponent component)
        super.setProperties(component);
        if (! (component instanceof SpecialBtnComponent))
            throw new IllegalStateException("Component " + component.toString() +
                                            " not expected type.  Expected: jsfcustomcomponent.SpecialBtnComponent.  Perhaps you�re missing a tag?");
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        if (value != null)
            if (isValueReference(value))
                ValueBinding vb = Util.getValueBinding(value);
                specialBtnComponent.setValueBinding("value", vb);
            else
                throw new IllegalStateException("The value for �value� must be a ValueBinding.");
        if (actionListener != null)
            if (isValueReference(actionListener))
                ValueBinding vb = Util.getValueBinding(actionListener);
                specialBtnComponent.setValueBinding("actionListener", vb);
            else
                throw new IllegalStateException("The value for �actionListener� must be a ValueBinding.");
    public void release()
        super.release();
        value = null;
        actionListener = null;
    public void setValue(String value)
        this.value = value;
    public String getValue()
        return this.value;
    public void setActionListener(String actionListener)
        this.actionListener = actionListener;
    public String getActionListener()
        return this.actionListener;
jsp1.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://jsfcustomcomponent/" prefix="j"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<link rel="stylesheet" type="text/css" href="./stylesheet.css" title="Style">
</head>
<body>
<f:view>
  <h:form id="form01">
    <h:outputText value="test special button with action listener"/>
    <j:specialBtnTag value="#{specialBtnBacking.specialBtnValue}" actionListener="#{specialBtnBacking.specialBtnActionListener}"/>
    <h:messages/>
    <h:outputText value="#{specialBtnBacking.outcome}"/>
  </h:form>
</f:view>
</body>
</html>
SpecialBtnBacking
package specialbtn;
import javax.faces.context.*;
import javax.faces.event.*;
public class SpecialBtnBacking
    private FacesContext context;
    public SpecialBtnBacking()
        this.setSpecialBtnValue("Special Button with action listener");
    private String specialBtnValue;
    public String getSpecialBtnValue()
        return this.specialBtnValue;
    public void setSpecialBtnValue(String specialBtnValue)
        this.specialBtnValue = specialBtnValue;
    private String outcome="actionlistener NOT invoked: click specialBtn above to test";
    public String getOutcome()
        return outcome;
    public void setOutcome(String outcome)
        this.outcome = outcome;
    public void specialBtnActionListener(ActionEvent evt)
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        this.outcome="***action listener invoked!!!***";
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
  <managed-bean>
    <managed-bean-name>specialBtnBacking</managed-bean-name>
    <managed-bean-class>specialbtn.SpecialBtnBacking</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
  </managed-bean>
  <component>
    <component-type>SpecialBtnComponent</component-type>
    <component-class>jsfcustomcomponent.SpecialBtnComponent</component-class>
    <component-extension>
      <renderer-type>SpecialBtnRenderer</renderer-type>
    </component-extension>
  </component>
  <render-kit>
    <renderer>
      <component-family>SpecialBtnComponent</component-family>
      <renderer-type>SpecialBtnRenderer</renderer-type>
      <renderer-class>jsfcustomcomponent.SpecialBtnRenderer</renderer-class>
    </renderer>
  </render-kit>
</faces-config>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
  <display-name>pagerWEB</display-name>
  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
  </servlet-mapping>
  <jsp-config>
    <taglib>
      <taglib-uri>http://jsfcustomcomponent/</taglib-uri>
      <taglib-location>/WEB-INF/jsfcustomcomponent.tld</taglib-location>
    </taglib>
  </jsp-config>
  <servlet>
    <description>Added by JBuilder to compile JSPs with debug info</description>
    <servlet-name>debugjsp</servlet-name>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
      <param-name>classdebuginfo</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>3</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>debugjsp</servlet-name>
    <url-pattern>*.jsp</url-pattern>
  </servlet-mapping>
</web-app>

Answer 1

got it working....
The changes were:
in "SpecialBtnRenderer"...
--new--
                    mb.invoke(context, new Object[1]);
--old--
                    mb.invoke(context, new Object[0]);
in "SpecialBtnTag"...
--new--
import javax.faces.event.ActionEvent;
--new--
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, new Class[]{ActionEvent.class});
--old--
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, null);
-Below is the entire application, again -- for those (like myself) who need concrete examples...
I hope this helps someone else! --f
jsp1.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://jsfcustomcomponent/" prefix="j"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<link rel="stylesheet" type="text/css" href="./stylesheet.css" title="Style">
</head>
<body>
<f:view>
    <h:messages/>
  <h:form id="form01">
    <h:outputText value="test special button with action listener"/>
    <j:specialBtnTag value="#{specialBtnBacking.specialBtnValue}" specialBtnListener="#{specialBtnBacking.specialBtnActionListener}"/>
    <h:outputText value="#{specialBtnBacking.outcome}"/>
  </h:form>
</f:view>
</body>
</html>
SpecialBtnBacking
package specialbtn;
import javax.faces.context.*;
import javax.faces.event.*;
public class SpecialBtnBacking
    private FacesContext context;
    public SpecialBtnBacking()
        this.setSpecialBtnValue("Special Button with action listener");
    private String specialBtnValue;
    public String getSpecialBtnValue()
        return this.specialBtnValue;
    public void setSpecialBtnValue(String specialBtnValue)
        this.specialBtnValue = specialBtnValue;
    private String outcome = "actionlistener NOT invoked: click specialBtn above to test";
    public String getOutcome()
        return outcome;
    public void setOutcome(String outcome)
        this.outcome = outcome;
    public void specialBtnActionListener(ActionEvent evt)
        System.out.println("\n\n");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n");
        this.outcome = "***action listener invoked!!!***";
jsfcustomcomponent.tld
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
  <tlib-version>0.01</tlib-version>
  <jsp-version>1.2</jsp-version>
  <short-name>jsfcustomcomponent</short-name>
  <uri>http://jsfcustomcomponent/</uri>
  <description><![CDATA[jsf custom component tags]]>  </description>
  <tag>
    <name>specialBtnTag</name>
    <tag-class>jsfcustomcomponent.SpecialBtnTag</tag-class>
    <attribute>
      <name>value</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[button value]]></description>
    </attribute>
    <attribute>
      <name>specialBtnListener</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[action listener]]> </description>
    </attribute>
  </tag>
</taglib>
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
  <managed-bean>
    <managed-bean-name>specialBtnBacking</managed-bean-name>
    <managed-bean-class>specialbtn.SpecialBtnBacking</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
  </managed-bean>
  <component>
    <component-type>SpecialBtnComponent</component-type>
    <component-class>jsfcustomcomponent.SpecialBtnComponent</component-class>
    <component-extension>
      <renderer-type>SpecialBtnRenderer</renderer-type>
    </component-extension>
  </component>
  <render-kit>
    <renderer>
      <component-family>SpecialBtnComponent</component-family>
      <renderer-type>SpecialBtnRenderer</renderer-type>
      <renderer-class>jsfcustomcomponent.SpecialBtnRenderer</renderer-class>
    </renderer>
  </render-kit>
</faces-config>
SpecialBtnComponent.java
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.el.*;
import javax.faces.event.*;
public class SpecialBtnComponent
    extends UIComponentBase implements ActionSource
    public static final String COMPONENT_TYPE = "SpecialBtnComponent";
    public static final String RENDERER_TYPE = "SpecialBtnRenderer";
    public String getFamily()
        return COMPONENT_TYPE;
    public SpecialBtnComponent()
        super();
        setRendererType(SpecialBtnComponent.RENDERER_TYPE);
    private String value;
    public void setValue(String value, FacesContext facesContext)
        this.value = value;
    public String getValue()
        if (null != this.value)
            return this.value;
        ValueBinding _vb = getValueBinding("value");
        if (_vb != null)
            return (String) _vb.getValue(getFacesContext());
        else
            return null;
    private MethodBinding specialBtnListener = null;
    public MethodBinding getActionListener()
        return (this.specialBtnListener);
    public void setActionListener(MethodBinding actionListener)
        this.specialBtnListener = actionListener;
    public Object saveState(FacesContext context)
        Object values[] = new Object[3];
        values[0] = super.saveState(context);
        values[1] = saveAttachedState(context, this.specialBtnListener);
        values[2] = this.value;
        return (values);
    public void restoreState(FacesContext context, Object state)
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);
        this.specialBtnListener = (MethodBinding) restoreAttachedState(context, values[1]);
        this.value = (String) restoreAttachedState(context, values[2]);
    public void broadcast(FacesEvent event) throws AbortProcessingException
        super.broadcast(event);
        if (event instanceof ActionEvent)
            FacesContext context = getFacesContext();
            MethodBinding mb = this.getActionListener();
            if (mb != null)
                try
                    mb.invoke(context, new Object[]
                              {event});
                catch (EvaluationException ex)
                    System.out.println("SpecialBtnComponent/broadcast(FacesEvent event)...EvaluationException encountered - ex.getMessage()=" + ex.getMessage());
                    ex.printStackTrace();
            ActionListener actionListener = context.getApplication().getActionListener();
            if (actionListener != null)
                actionListener.processAction( (ActionEvent) event);
    public void queueEvent(FacesEvent e)
        if (e instanceof ActionEvent)
            e.setPhaseId(PhaseId.INVOKE_APPLICATION);
        super.queueEvent(e);
    public MethodBinding getAction()
        return null;
    public void setAction(MethodBinding methodBinding)
    public boolean isImmediate()
        return false;
    public void setImmediate(boolean _boolean)
    public void addActionListener(ActionListener actionListener)
        addFacesListener(actionListener);
    public ActionListener[] getActionListeners()
        return (ActionListener[]) getFacesListeners(ActionListener.class);
    public void removeActionListener(ActionListener actionListener)
        removeFacesListener(actionListener);
SpecialBtnTag.java
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.el.*;
import javax.faces.webapp.*;
import com.sun.faces.util.*;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
public class SpecialBtnTag
    extends UIComponentTag
    public String value = null;
    public String specialBtnListener = null;
    private SpecialBtnComponent specialBtnComponent;
    public SpecialBtnTag()
        super();
    public String getComponentType()
        return SpecialBtnComponent.COMPONENT_TYPE;
    public String getRendererType()
        return SpecialBtnComponent.RENDERER_TYPE;
    protected void setProperties(UIComponent component)
        super.setProperties(component);
        if (! (component instanceof SpecialBtnComponent))
            throw new IllegalStateException("Component " + component.toString() +
                                            " not expected type.  Expected: jsfcustomcomponent.SpecialBtnComponent.  Perhaps you�re missing a tag?");
        specialBtnComponent = (SpecialBtnComponent) component;
        if (value != null)
            if (isValueReference(value))
                ValueBinding vb = Util.getValueBinding(value);
                specialBtnComponent.setValueBinding("value", vb);
            else
                throw new IllegalStateException("The value for �value� must be a ValueBinding.");
        if (specialBtnListener != null)
            if (isValueReference(specialBtnListener))
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, new Class[]{ActionEvent.class});
                ( (SpecialBtnComponent) component).setActionListener(mb);
            else
                MethodBinding mb = Util.createConstantMethodBinding(specialBtnListener);
                ( (SpecialBtnComponent) component).setActionListener(mb);
    public void release()
        super.release();
        value = null;
        specialBtnListener = null;
    public void setValue(String value)
        this.value = value;
    public String getValue()
        return this.value;
    public void setSpecialBtnListener(String specialBtnListener)
        this.specialBtnListener = specialBtnListener;
    public String getSpecialBtnListener()
        return this.specialBtnListener;
SpecialBtnRenderer
package jsfcustomcomponent;
import java.util.*;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.event.*;
import javax.faces.render.*;
import javax.faces.el.MethodBinding;
import javax.faces.el.*;
public class SpecialBtnRenderer
    extends Renderer
    String value;
    public SpecialBtnRenderer()
        super();
    public void decode(FacesContext context, UIComponent component)
        try
            Map requestMap = context.getExternalContext().getRequestParameterMap();
            String clientId = component.getClientId(context);
            SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
            String value = (String) requestMap.get(clientId);
            if (null != value)
                specialBtnComponent.setValue(value, context);
                MethodBinding mb = specialBtnComponent.getActionListener();
                if (mb != null)
                    System.out.println("SpecialBtnRenderer/decode...mb.getExpressionString()=" + mb.getExpressionString());
                    //mb.invoke(context, new Object[0]);
                    mb.invoke(context, new Object[1]);
                ActionEvent actionEvent = new ActionEvent(specialBtnComponent);
                specialBtnComponent.queueEvent(actionEvent);
        catch (EvaluationException ex)
            ex.printStackTrace();
    public void encodeEnd(FacesContext context, UIComponent component) throws java.io.IOException
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        ResponseWriter writer = context.getResponseWriter();
        String clientId = component.getClientId(context);
        value = (String) component.getAttributes().get("value");
        if (value == null)
            value = "defaultValue";
        buildSpecialBtn(writer, value, clientId, specialBtnComponent);
    private void buildSpecialBtn(ResponseWriter writer, String value, String clientId, SpecialBtnComponent component) throws java.io.IOException
        writer.startElement("table", component);
        writer.startElement("tbody", component);
        writer.startElement("tr", component);
        writer.startElement("td", component);
        value = String.valueOf(value);
        writer.startElement("input", component);
        writer.writeAttribute("type", "submit", null);
        writer.writeAttribute("name", clientId, "clientId");
        writer.writeAttribute("value", value, null);
        writer.endElement("input");
        writer.endElement("td");
        writer.endElement("tr");
        writer.endElement("tbody");
        writer.endElement("table");
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
  <display-name>pagerWEB</display-name>
  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
  </servlet-mapping>
  <jsp-config>
    <taglib>
      <taglib-uri>http://jsfcustomcomponent/</taglib-uri>
      <taglib-location>/WEB-INF/jsfcustomcomponent.tld</taglib-location>
    </taglib>
  </jsp-config>
</web-app>