com_baeldung_systemstubs_SystemInJUnit5UnitTest_java
uk.org.webcompere.systemstubs.stream.SystemIn
 -> java.util.Arrays.stream(java.lang.Object[]): java.util.stream.Stream -> java.util.stream.Stream.flatMap(java.util.function.Function): java.util.stream.Stream -> java.util.stream.Stream.flatMap(java.util.function.Function): java.util.stream.Stream -> java.util.stream.Stream.iterator(): java.util.Iterator