Fixed length Validation using Javax api

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request response can be validated using javax annotation. However, need some help to have fixed length validation, as @Size(min=3, max=3). It is having message that ‘size must be between 3 and 3’. This is required to be changed.

Answer

If you want to change the default @Size message just declare parameter message into:

@Size(min = 3, max = 3, message = "Your constraint message")
private int anyNumber;


Source: stackoverflow