Hidden fields do not post?

[florin.g]

Unless I get something wrong, we have a showstopper.

I prefer manual layout of forms. I do start with $form at first for
practical reasons and once the functionality is working fine I switch to
manual layout.

There is one hidden field, <input type="hidden" name="serviceId"
id="webform_serviceId"/> that I cut from the $form output and place it in my
manual form. No errors. When the value is set via javascript and then
submit, I get an error. If I don't set the value, there is no error. If I
set the value manually (hard coded), it still does not work. 

Here's the error:

java.lang.NullPointerException
        at java.lang.Class.isAssignableFrom(Native Method)
        at 
net.sf.click.control.HiddenField.bindRequestValue(HiddenField.java:282)
        at net.sf.click.control.Field.onProcess(Field.java:873)
        at net.sf.click.control.Form.onProcess(Form.java:1746)
        at net.sf.click.ClickServlet.processPage(ClickServlet.java:546)
        at net.sf.click.ClickServlet.handleRequest(ClickServlet.java:331)
        at net.sf.click.ClickServlet.doPost(ClickServlet.java:267)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
        at 
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1120)
        at
net.sf.click.extras.filter.PerformanceFilter.doFilter(PerformanceFilter.java:290)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1111)
        at main.XSS$$M$7513a72f.doFilter(XSS.java:25)
        at main.XSS$$A$7513a72f.doFilter(<generated>)
        at main.XSS.doFilter(<generated>)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1111)
        at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
        at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)
        at 
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at 
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:786)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:431)
        at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:188)
        at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)
        at 
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:325)
        at 
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:533)
        at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:870)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:657)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)
        at
org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:235)
        at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:497)

It looks like it's happening here:

} else if (Date.class.isAssignableFrom(valueClass)) { // line 286 in
HiddenField.java
                long time = Long.parseLong(aValue);
                setValueObject(new Date(time));

}

I cannot get around it. If I switch the field value from value='110' to
value='_110' thinking that it's a matter of parsing a number, I get the same
result.

I would think that it is easy to replicate in different environments.

Thanks. 


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