How to access java method in JSP

Hi all,
I need to access java class (abstract portal component) method doContent() in a JSP which is under PORTAL-INF/jsp folder.
I did
<%@ page import = "com.mycompany.Aclass" %>
<%com.mycompany.Aclass a = new com.mycompany.Aclass (); %>
Aclass is coming as autofill/prepopulated with cntrl+space
Till this time, it is working. no errors. But when I do
a.
a. (a dot) no methods are populating (autofill..cntrl+space) or If I forcebly add method a.doContent(req,res)... at runtime its giving error.
It's not only with doContent method... Its with any simple methods in that class or any other class.
(Other than doContent method in the APC java class are prepopulating/autofilling but giving error in runtime)
Can anyone help me... how to access java method in JSP.
I already gone through many SDN forum post... and implemented too---but no use I refered below forum thread
Retrieve values from Java class to JSP
URGENT! How to call a java class from JSP.
Calling a java method from jsp file -
this thread is same as my issue
Thanks,
PradeeP

1st. The classes must be in packages. 2nd, the package that they are in must be under the WEB-INF/classes directory. 3rd Look on google and/or this site for web application deployment

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i try on the easier that i can but still i have error displaying it
here are the files
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the error message
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