Serialization Validation initial commit

Changes for Adding Tests Serialization Validation
1: Added utility Method.
2: Added Tests

core-java-modules/core-java/src/main/java/com/baeldung/util/SerializationUtils.java

@@ -0,0 +1,29 @@
+package com.baeldung.util;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+
+public class SerializationUtils {
+
+	public static <T extends Serializable> byte[] serialize(T obj) 
+	       throws IOException {
+	    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+	    ObjectOutputStream oos = new ObjectOutputStream(baos);
+	    oos.writeObject(obj);
+	    oos.close();
+	    return baos.toByteArray();
+	}
+	
+	public static <T extends Serializable> T deserialize(byte[] b, Class<T> cl)
+	       throws IOException, ClassNotFoundException {
+	    ByteArrayInputStream bais = new ByteArrayInputStream(b);
+	    ObjectInputStream ois = new ObjectInputStream(bais);
+	    Object o = ois.readObject();
+	    return cl.cast(o);
+	}
+}
+