BAEL-2097 add Address entity

hibernate5/src/main/java/com/baeldung/hibernate/joincolumn/Address.java

@@ -0,0 +1,19 @@
+package com.baeldung.hibernate.joincolumn;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Address {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @Column(name = "ZIP")
+    private String zipCode;
+
+}