com_baeldung_hystrix_SpringAndHystrixIntegrationTest_java
org.springframework.boot.context.config.ConfigDataEnvironmentContributors
 -> java.util.Map.size(): int -> java.util.Map.forEach(java.util.function.BiConsumer): void -> java.util.List.isEmpty(): boolean -> java.util.Collections.emptyMap(): java.util.Map -> java.util.List.add(java.lang.Object): boolean -> java.util.Collections.unmodifiableList(java.util.List): java.util.List