Polish JavaDoc

See gh-29666

Author: mhalbritter

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/observation/NoTracingObservationRegistryCustomizer.java

@@ -25,10 +25,14 @@
 import io.micrometer.observation.ObservationHandler.FirstMatchingCompositeObservationHandler;
 import io.micrometer.observation.ObservationPredicate;
 import io.micrometer.observation.ObservationRegistry;
+import io.micrometer.tracing.handler.TracingObservationHandler;
 
 /**
  * Installs predicates, handlers and tag providers into a {@link ObservationRegistry}.
  *
+ * This class is used by {@link ObservationAutoConfiguration} when no
+ * {@link TracingObservationHandler} is found on the classpath.
+ *
  * @author Moritz Halbritter
  */
 class NoTracingObservationRegistryCustomizer implements ObservationRegistryCustomizer<ObservationRegistry> {

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/observation/TracingObservationRegistryCustomizer.java

@@ -32,6 +32,9 @@
  * {@link TracingObservationHandler} are grouped into a
  * {@link FirstMatchingCompositeObservationHandler}.
  *
+ * This class is used by {@link ObservationAutoConfiguration} when a
+ * {@link TracingObservationHandler} is found on the classpath.
+ *
  * @author Moritz Halbritter
  */
 class TracingObservationRegistryCustomizer extends NoTracingObservationRegistryCustomizer {