RE:(URGENT)WebDynpro For Java

Question

hi all,
I have done an application in webdynpro for java that i.e accesing a java Bean by creating a model.
In my model i have taken three variables i.e a,b,c
after that i have exported the jar file of that bean...and i have created model in my webdynpro application.
in that model i have taken that jar file and i have taken in used model to....
After that in  diagram view of the webdynpro componnt i have mapp that model to cntroller and from controller to the view after that i am able to use the three variables from the bean as my context attributes.....
so i have binded those attributes(from Bean) to inputfields in view layout....
so after that when i have deployed the webdynpro application the input fields are getting disabled so iam not able to give any values....
and when iam clicking the submit button the error iam getting is null pointer exception....
even i have tried with different cardinality values of that node ......but my problem was not solved so plz help me out in solving this issue as soon as possible.............

Answer 1

HI Mahesh,
If you have mapped variables correctly then check following
Your variables a,b,c wherever you declared them instantiate them.
and be sure that that getter setter methods are exist.
e.g if a,b,c are in your bean file then
as a = new a's class,
and check getter methods for a
i.e. getA() and setA(a's class) methods.
after this export as jar and use this new jar to create model.(It will be good if you create a new model deleting prv one)