如何使用 bytebuddy 在私有变量中设置注解@Value

Question

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 Class<?> metricTags = new ByteBuddy().subclass(Object.class).name("demo.metrics.MetricTags").annotateType(AnnotationDescription.Builder.ofType(Component.class).build()).annotateType(AnnotationDescription.Builder.ofType(Data.class).build()).defineField("sourceApp", String.class, Visibility.PUBLIC).annotateField(AnnotationDescription.Builder.ofType(Value.class).define("sourceApp", "dsdw23").build()).defineField("sourceServiceNamespace", String.class, Visibility.PRIVATE).defineField("sourceServiceName", String.class, Visibility.PRIVATE).defineField("protocol", String.class, Visibility.PRIVATE).value("http").defineField("appName", String.class, Visibility.PRIVATE).make().load(AgentMain.class.getClassLoader(), ClassLoadingStrategy.Default.WRAPPER).getLoaded();

report error: Caused by: java.lang.IllegalArgumentException: interface lombok.Value does not define a property named sourceApp

Answer 1

The error indicates that the Value annotation does not define a property of thst name. You can only define properties that are declared by the annotation type.