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EJB Programming Restriction

 
Greenhorn
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Hi all,

I was going through the EJB Programming Restrictions in the link http://www.conceptgo.com/gsejb/ov05.html.

One of the restrictions is

"The enterprise bean must not attempt to define a class in a package."

Can anybody help me out in finding out the reason for the above restriction?

Thanks.
 
Author & Gold Digger
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IntelliJ IDE Java
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Please check out the following discussion on this topic.
 
Subramanian Murali
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Thank U Very Much Valentin!
 
Subramanian Murali
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Valentin,

U r saying that we are not allowed to use the ClassLoader.defineClass() and ClassLoader.definePackage() methods within your bean classes

But the restriction is "

"The enterprise bean must not attempt to define a class in a <b> package <b>."

Can u please explain?
 
Greenhorn
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I feel if you define a class in a package it may create problems in deploying that bean in other servers.
 
Subramanian Murali
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Still not clear valentin!
 
Valentin Crettaz
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When you define a class you have to tell the classloader in which package you want to create it. This restriction is in place to avoid opening security holes by allowing people to define classes that the container could use in place of the container-specific ones it has generated. Don't bother too much about that, just know that you are not allowed to do that if you want your beans to be portable across application servers
 
Subramanian Murali
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Thanks Valentin!
 
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