I wonder why this lombok anonotion can not take affect

The current implementation uses ReflectionToStringBuilder to print the serialized result. If I understand correctly, ReflectionToStringBuilder.toString(config) does not recognize lombok's annotations, we need to use the corresponding annotations to filter privacy information, namely StringToExclude instead of lombok's String.ToExclude

... Alternatively the ToStringExclude annotation can be used to exclude fields from being incorporated in the result. ... public class ReflectionToStringBuilder extends ToStringBuilder { ...

Thanks for your explain. now I see it. The root cause is that we didn't over write toString() method of ServiceConfiguration.

How about just change it like this:

@ToString
@Getter
@Setter
public class ServiceConfiguration

or

@Data
public class ServiceConfiguration

because it looks that we need the toString() method.

Thanks for your advice. I tried to add ToString annotation and it works as you expected.
I'm not sure if @DaTa is ok as it is equivalent to @Getter @Setter @requiredargsconstructor @tostring @EqualsAndHashCode.
If I understand correctly. We just need@Getter @Setter and @tostring only.