public static String jsonField(Project project, ColumnIdentifier<?> identifier) {
        requireNonNulls(project, identifier);
        return referencedColumn(project, identifier).getJavaName();
    }
Determines the JSON label for the specified field identifier. This will
be the result of {@link Column#getJavaName()}.

@param project     the project that the identifier is referencing
@param identifier  the identifier for the field to name
@return            the JSON label of that field
plugin-parent/json-stream/src/main/java/com/speedment/plugins/json/internal/JsonUtil.java