fix javadoc warning

src/main/java/com/imyeyu/spring/entity/UUIDEntity.java

@@ -16,6 +16,12 @@ public class UUIDEntity extends BaseEntity implements IDEntity<String> {
 	@AutoUUID
 	protected String id;
 
+	/**
+	 * 创建 UUID 实体
+	 */
+	public UUIDEntity() {
+	}
+
 	public String getId() {
 		return id;
 	}