--- title: Resolving Exception: Cannot Deserialize From Object... description: Jackson's InvalidDefinitionException with the message 'cannot deserialize from Object value (no delegate- or property-based Creator)' occurs when Jackson... canonical: https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator) | daily.dev og:description: Jackson's InvalidDefinitionException with the message 'cannot deserialize from Object value (no delegate- or property-based Creator)' occurs when Jackson... og:url: https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi og:image: https://api.daily.dev/og/posts/SGrw0iqgi.png og:image:alt: Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator) **[Baeldung](https://daily.dev/sources/baeldung)** · 3 min read · 5 upvotes · 0 comments ## Summary Jackson's InvalidDefinitionException with the message 'cannot deserialize from Object value (no delegate- or property-based Creator)' occurs when Jackson cannot determine how to instantiate a target class, often with immutable classes lacking a no-arg constructor. The tutorial reproduces the error with Jackson 2.17.2 and shows several fixes: adding a default constructor, using @JsonCreator with @JsonProperty annotations on constructors or factory methods, compiling with the -parameters flag (built into Jackson 3.x by default), or registering ParanamerModule in Jackson 2.x (though Paranamer is discontinued). ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why does Jackson throw 'cannot deserialize from Object value (no delegate- or property-based Creator)'? This happens when Jackson cannot determine how to construct an instance of an immutable class that only has a parameterized constructor and no default no-argument constructor. Even if the JSON fields match the class fields, Jackson needs an explicit mapping between JSON properties and constructor parameters, which triggers an InvalidDefinitionException without one. _daily.dev surfaces practical fixes like this for developers debugging Jackson serialization issues._ ### How do I fix Jackson deserialization for an immutable class without a default constructor? Annotate the parameterized constructor with @JsonCreator and annotate each parameter with @JsonProperty specifying the corresponding JSON field name. This lets Jackson map JSON properties directly to constructor parameters, allowing deserialization while keeping the class immutable. Factory methods can be annotated the same way if used as creators instead of constructors. _Developers keeping immutable Java models working with Jackson can find these patterns on daily.dev._ ### How does Jackson 3.x handle constructor parameter name detection differently from Jackson 2.x? Jackson 3.x has parameter name detection built into jackson-databind and enabled by default, so no extra module registration is needed as long as the code is compiled with the -parameters flag. In Jackson 2.x, achieving the same requires registering ParanamerModule via the jackson-module-paranamer dependency, though Paranamer is discontinued and only supports Jackson 2.x. _Teams migrating between Jackson 2.x and 3.x can track these tooling differences via daily.dev._ ## Similar posts on daily.dev - [JSON Deserialization with Multiple Parameters Constructor Using Jackson](https://daily.dev/posts/json-deserialization-with-multiple-parameters-constructor-using-jackson-bfm9megxo) · Baeldung · 0 upvotes · 0 comments - [Gson Deserialization and the InaccessibleObjectException](https://daily.dev/posts/gson-deserialization-and-the-inaccessibleobjectexception-vpo8fvo2o) · Baeldung · 2 upvotes · 0 comments - [How to Fix Jackson JSON Parse Error Can not construct instance of java.time.LocalDate](https://daily.dev/posts/how-to-fix-jackson-json-parse-error-can-not-construct-instance-of-java-time-localdate-ey78eqsys) · Baeldung · 5 upvotes · 0 comments - [Unknown JSON fields in Java REST clients: JSON-B, Jackson, Quarkus, and Spring Boot](https://daily.dev/posts/unknown-json-fields-in-java-rest-clients-json-b-jackson-quarkus-and-spring-boot-eexdgjwha) · Jakarta EE · 3 upvotes · 1 comments --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator)","url":"https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi"},"datePublished":"2026-09-14T04:47:02.690Z","dateModified":"2026-09-14T04:49:42.334Z","description":"Jackson's InvalidDefinitionException with the message 'cannot deserialize from Object value (no delegate- or property-based Creator)' occurs when Jackson...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d2513ec29c7dabab8eea6c36fbb263da?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d2513ec29c7dabab8eea6c36fbb263da?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Baeldung","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Baeldung","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/52cccfb454d946c4b7dfa5e816f9e576","url":"https://daily.dev/sources/baeldung"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":5},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"java","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Baeldung","item":"https://daily.dev/sources/baeldung"},{"@type":"ListItem","position":3,"name":"Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator)"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/resolving-exception-cannot-deserialize-from-object-value-no-delegate--or-property-based-creator--sgrw0iqgi#faq","mainEntity":[{"@type":"Question","name":"Why does Jackson throw 'cannot deserialize from Object value (no delegate- or property-based Creator)'?","acceptedAnswer":{"@type":"Answer","text":"This happens when Jackson cannot determine how to construct an instance of an immutable class that only has a parameterized constructor and no default no-argument constructor. 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