You have two options:
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Jackson works on setters-getters of fields. So, you can just remove getter of field which you want to omit in JSON. ( If you don’t need getter at other place.)
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Or, you can use the
@JsonIgnore
annotation of Jackson on getter method of that field and you see there in no such key-value pair in resulted JSON.@JsonIgnore public int getSecurityCode(){ return securityCode; }