java-tutorials/core-java-modules/core-java-9/compile-student-service.bat

javac --module-path mods -d mods/com.baeldung.student.service^
 src/modules/com.baeldung.student.service/module-info.java^
 src/modules/com.baeldung.student.service/com/baeldung/student/service/StudentService.java