Fixing cloning to actually be a "Deep copy"

src/main/lombok/org/leumasjaffe/charsheet/model/DDCharacterClass.java

@@ -18,7 +18,6 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
-import lombok.SneakyThrows;
 import lombok.experimental.Delegate;
 import lombok.experimental.FieldDefaults;
 
@@ -119,9 +118,4 @@ public class DDCharacterClass extends Observable implements Comparable<DDCharact
 				.reduce(Stream.empty(), (l, r) -> Stream.concat(l, r))
 				.filter(p -> p.appliesTo(appliesScope)).collect(Collectors.toList());
 	}
-
-	@Override @SneakyThrows(CloneNotSupportedException.class)
-	public DDCharacterClass clone() {
-		return (DDCharacterClass) super.clone();
-	}
 }

src/main/lombok/org/leumasjaffe/charsheet/view/level/ChooseClassLevelUpDialog.java

@@ -5,12 +5,21 @@ import javax.swing.JPanel;
 import org.leumasjaffe.charsheet.model.DDCharacter;
 import org.leumasjaffe.charsheet.model.DDCharacterClass;
 
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
+
+import lombok.SneakyThrows;
+
 import java.awt.GridBagLayout;
 
 import javax.swing.JComboBox;
 import java.awt.GridBagConstraints;
 import javax.swing.JLabel;
 import java.awt.Insets;
+import java.io.IOException;
 import java.util.function.Consumer;
 
 import javax.swing.JButton;
@@ -69,9 +78,21 @@ class ChooseClassLevelUpDialog extends JPanel {
 			final String name = (String) comboBox.getSelectedItem();
 			final LevelUpClassInfo info = chara.getClasses().stream()
 					.filter(c -> c.getName().equals(name)).findFirst()
-					.map(dch -> new LevelUpClassInfo(chara, dch.clone(), dch.getLevel().value() + 1))
+					.map(dch -> new LevelUpClassInfo(chara, clone(dch), dch.getLevel().value() + 1))
 					.orElseGet(() -> new LevelUpClassInfo(chara, new DDCharacterClass(name)));
 			nexter.accept(info);
 		});
 	}
+
+	static ObjectMapper mapper = new ObjectMapper();
+	static {
+		mapper.registerModule(new Jdk8Module());
+	}
+	
+	@SneakyThrows({JsonParseException.class, JsonMappingException.class, JsonProcessingException.class, IOException.class})
+	private DDCharacterClass clone(DDCharacterClass dch) {
+		final String data = mapper.writeValueAsString(dch);
+//		System.out.println(data);
+		return mapper.readValue(data, DDCharacterClass.class);
+	}
 }