Doubt in JSP standard tag

[Ashok Pradhan]

When I write

<jsp:useBean id="person" class="Person" scope="request"/>
Your Name is <jsp:getProperty name="person" property="name"/>

it shows error
my bean class Person is in default pacakge(no package)

but keeping everything same when I write

<jsp:useBean id="person" class="ashok.Person" scope="request"/>
Your Name is <jsp:getProperty name="person" property="name"/>

it works perfectly
I have changed my bean class Person default package to ashok package(Person class in ashok package)

I have doubt that the bean class should always be placed in a package ?if so why ?

[Piotr Nowicki]

Generally the default package usage is discouraged, but I guess that the question is still valid...

[Frits Walraven]

Yes, the bean should be defined in a package.

This is to avoid instantiating the "wrong" bean ( if two beans with the same name are defined in the default package, for example your MyBean and somebody else's MyBean which is packaged in a .jar file inside your web-application, which one did you mean to be used with your jsp:UseBean....).

Have a look here Syntax jsp:UseBean

<jsp:useBean
id="beanInstanceName"
scope="page | request | session | application"
{
class="package.class" |
type="package.class" |
class="package.class" type="package.class" |
beanName="{package.class | <%= expression %>}" type="package.class"
}
{
/> |
> other elements </jsp:useBean>
}

Regards,
Frits

[Ashok Pradhan]

thanks to all !!!