Remove Dimension variable & add equals()/hashcode()

src/main/java/me/goudham/domain/MyClipboardContent.java

@@ -1,10 +1,9 @@
 package me.goudham.domain;
 
-import java.awt.Dimension;
+import java.util.Objects;
 
 public class MyClipboardContent<T> {
     private T oldContent;
-    private Dimension oldDimensionContent;
 
     public MyClipboardContent() {
     }
@@ -17,11 +16,16 @@ public class MyClipboardContent<T> {
         return oldContent;
     }
 
-    public void setOldDimensionContent(Dimension oldDimensionContent) {
+    @Override
-        this.oldDimensionContent = oldDimensionContent;
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        MyClipboardContent<?> that = (MyClipboardContent<?>) o;
+        return Objects.equals(oldContent, that.oldContent);
     }
 
-    public Dimension getOldDimensionContent() {
+    @Override
-        return oldDimensionContent;
+    public int hashCode() {
+        return Objects.hash(oldContent);
     }
 }