question about getSkyWalkingDynamicField, setSkyWalkingDynamicField

[abhinandc123]

hii i am reading src code of java agent, unable to understand how this works
can anyone pls explain
Link to class :- https://github.com/apache/skywalking-java/blob/main/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/plugin/interceptor/enhance/EnhancedInstance.java

[CodePrometheus]

My understanding is that this is an extension field provided by skywalking for the target class, the implementation is based on bytebuddy defineField. It can be used to fill in span information and other purposes. You can look at the specific usage in the plugins implemented in java, which may help to understand.

[abhinandc123]

i was not able step into the interceptor also while debugging.

[CodePrometheus]

Debug by IDEA? Maybe this discussion #11835 can help you

[abhinandc123]

@Override public Object afterMethod(Class clazz, Method method, Object[] allArguments, Class<?>[] parameterTypes, Object ret) { if (ret instanceof EnhancedInstance) {
https://github.com/apache/skywalking-java/blob/main/apm-sniffer/apm-sdk-plugin/mysql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/mysql/v8/ConnectionCreateInterceptor.java#L41

any idea where this object get convert to EnhancedInstance