I try to write a custome JSF tag to use directly existing JSF UIComponents, but failed, part of my code :

. . . . . .
ResponseWriter jw = context.getResponseWrite();
... reqObj = (my object)((HttpSession)context.getExternalContext().getSession(false)).getAttribute("customerSearch");

jw.write("TestForEach");

int j = reqObj.getObjectList().size();

for(int i=0; i<j; i++){

jw.write("<h:panelGroup styleClass=...\"");
jw.write("<h:panelGroup rendered=\"true\">");
jw.write( "<h:commandLink action=\"#{...}\">");
jw.write( "<h:outputText value=\"#{...}\"></h:outputText>");
jw.write( "<h:outputText value=\"test" + i + "\"></h:outputText>");
jw.write( "<f:param name=\"seq\" value=\""+i+ "\"></f:param>");
jw.write( "</h:commandLink>");
jw.write( "</h:panelGroup>");
}

How to use directly the exisiting UIComponent in the custome tag?
are there examples?

my code does not work:

JspWriter jw = pageContext.getOut();
jw.println("TestForEach");
int j = ...getList().size();
for(int i=0; i<j; i++){
jw.println("<h:panelGroup styleClass=...\"");
jw.println("<h:panelGroup rendered=\"true\">");
jw.println( "<h:commandLink action=\"#{...}\">");
jw.println( "<h:outputText value=\"#{...}\"></h:outputText>");
jw.println( "<h:outputText value=\"test" + i + "\"></h:outputText>");
jw.println( "<f:param name=\"seq\" value=\""i "\"></f:param>");
jw.println( "</h:commandLink>");
jw.println( "</h:panelGroup>");
}

How to use directly the exisiting UIComponent in the custome tag?
are there examples?