com_baeldung_spring_cloud_stream_rabbit_MyLoggerApplicationIntegrationTest_java
org.springframework.boot.context.properties.source.SpringIterableConfigurationPropertySource
 -> java.lang.String.equals(java.lang.Object): boolean -> java.lang.System.getenv(): java.util.Map -> java.lang.ref.SoftReference.get(): java.lang.Object -> java.util.Map.keySet(): java.util.Set -> java.util.Collection.isEmpty(): boolean -> java.util.Collection.toArray(java.lang.Object[]): java.lang.Object[] -> java.util.Arrays.stream(java.lang.Object[]): java.util.stream.Stream -> java.util.stream.Stream.filter(java.util.function.Predicate): java.util.stream.Stream