@@ -0,0 +1,292 @@
+package jamaica.core.exceptions;%0A%0Apublic class MissingFieldsException extends RuntimeException %7B%0A    public final int required;%0A    public final int actual;%0A%0A    public MissingFieldsException(int required, int actual) %7B%0A        this.required = required;%0A        this.actual = actual;%0A    %7D%0A%7D%0A

move MissingFieldsException to core