/**
* Select a field from given class's declared field as a test target.
*
* @throws RejectedChoice If class has no fields to choose from.
*/
protected Field targetFieldFrom(Class<?> clazz, FieldGetMethod howToGet) throws RejectedChoice {
Field[] fields = null;
switch (howToGet) {
case GET_DECLARED_FIELD:
case GET_DECLARED_FIELDS:
fields = ReflectiveInterceptor.jlClassGetDeclaredFields(clazz);
break;
case GET_FIELD:
case GET_FIELDS:
fields = ReflectiveInterceptor.jlClassGetFields(clazz);
break;
}
// To be deterministic we must sort these in a predictable fashion!
Arrays.sort(fields, new ToStringComparator());
Field f = choice(fields);
toStringValue.append(f.getName());
try {
switch (howToGet) {
case GET_DECLARED_FIELDS:
case GET_FIELDS:
return f;
case GET_DECLARED_FIELD:
return ReflectiveInterceptor.jlClassGetDeclaredField(clazz, f.getName());
case GET_FIELD:
return ReflectiveInterceptor.jlClassGetField(clazz, f.getName());
}
} catch (Exception e) {
throw new Error(e);
}
return f;
}
