com_baeldung_jetty_httpclient_SpringWebFluxUnitTest_java
org.springframework.web.reactive.function.BodyInserters
 -> java.util.List.iterator(): java.util.Iterator -> java.util.Iterator.hasNext(): boolean -> java.util.Iterator.next(): java.lang.Object -> java.lang.String.equals(java.lang.Object): boolean -> java.lang.Class.isAssignableFrom(java.lang.Class): boolean