Minor code clean-ups.

spring-boot/src/main/java/org/baeldung/session/exception/repository/FooRepository.java

@@ -4,7 +4,7 @@ import org.baeldung.boot.model.Foo;
 
 public interface FooRepository {
 
-    public void save(Foo foo);
+    void save(Foo foo);
 
-    public Foo get(Integer id);
+    Foo get(Integer id);
 }

spring-boot/src/main/java/org/baeldung/session/exception/repository/FooRepositoryImpl.java

@@ -19,7 +19,7 @@ public class FooRepositoryImpl implements FooRepository {
 
     @Override
     public Foo get(Integer id) {
-        return (Foo) sessionFactory.getCurrentSession().get(Foo.class, id);
+        return sessionFactory.getCurrentSession().get(Foo.class, id);
     }
 
 }