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extending @notNull annotation

 
Ranch Hand
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I am trying to extend NotNull for additional fieldName so that i could extract the field and have all messages as one custom message for all required fields. I am doing this:


How can i use isValid implementation of NotNull.
I am getting error that the default message is not defined. Will i have to redefine everything
 
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Can you give us the exact error message and the line of code causing the error?
 
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