New libraries-data module (#2343)

libraries-data/src/main/java/com/baeldung/kryo/ComplexClass.java

@@ -0,0 +1,16 @@
+package com.baeldung.kryo;
+
+import java.io.Serializable;
+
+public class ComplexClass implements Serializable{
+    private static final long serialVersionUID = 123456L;
+    private String name = "Bael";
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}