[eclipse-ee4j#630]Forgot one class

Signed-off-by: Anton Pinsky <[email protected]>

src/test/java/org/eclipse/yasson/serializers/model/TwoObjectsComparer.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2023 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+
+package org.eclipse.yasson.serializers.model;
+
+import java.util.Arrays;
+import java.util.Objects;
+import java.util.Optional;
+
+public class TwoObjectsComparer {
+	public final String propertyName;
+	public final Object firstObjectValue;
+	public final Object secondObjectValue;
+
+	public static <T> Optional<TwoObjectsComparer> getDifferentFieldInTwoObjects(T thisObject, T otherObject) {
+		return otherObject == null ? Optional.empty() : Arrays.stream(thisObject.getClass().getFields()).map(f -> {
+			try {
+				return new TwoObjectsComparer(f.getName(), f.get(thisObject), f.get(otherObject));
+			} catch (IllegalAccessException e) {
+				throw new RuntimeException(e);
+			}
+		}).filter(o -> !Objects.equals(o.firstObjectValue, o.secondObjectValue)).findFirst();
+	}
+
+	private TwoObjectsComparer(String name, Object firstObjectValue, Object secondObjectValue) {
+		this.propertyName = name;
+		this.firstObjectValue = firstObjectValue;
+		this.secondObjectValue = secondObjectValue;
+	}
+
+	@Override
+	public String toString() {
+		return "propertyName: " + propertyName + " firstObjectValue: " + firstObjectValue + " secondObjectValue: " + secondObjectValue;
+	}
+}