# Jackson, Java Dates, Exception, LocalDate Jackson JSON deserialization issues involving Java date values, especially java.time.LocalDate. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator) DevFeed: [Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator)]() Original publisher: [Read original article]() Author: Martin Blažević Published: 2026-09-14T04:21:09Z Content type: tutorial Language: en Sources: [Baeldung]() Topics: [Jackson, Java Dates, Exception, LocalDate](), [Jackson](), [Exception](), [JSON]() Tags: [article](), [exception](), [how-to](), [jackson](), [jackson-exception](), [java](), [json](), [library](), [tutorial]() ### AI overview This tutorial explains why Jackson can throw InvalidDefinitionException when it cannot determine how to construct an object during JSON deserialization. It demonstrates the problem with an immutable class and presents solutions including a no-argument constructor, property-based creators using @JsonCreator and @JsonProperty, and annotated factory methods. It also notes the correct annotation package for Jackson 3.x. ### Source excerpt During JSON deserialization, Jackson may throw an InvalidDefinitionException when it can't determine how to create an instance of the target class. In this article, you'll learn how to fix this in Jackson 2.x and 3.x. The post Resolving Exception: Cannot Deserialize From Object Value (No Delegate- Or Property-Based Creator) first appeared on Baeldung. ## What's New in Jackson 3? DevFeed: [What's New in Jackson 3?]() Original publisher: [Read original article]() Author: Mateusz Szablak Published: 2026-09-10T19:10:48Z Content type: tutorial Language: en Sources: [Baeldung]() Topics: [Jackson, Java Dates, Exception, LocalDate](), [migration]() Tags: [android](), [api](), [jackson](), [jackson-basics](), [jackson-jackson-basics](), [java](), [json](), [migration](), [popular](), [tutorial]() ### AI overview A tutorial on Jackson 3.0's architectural and migration changes from Jackson 2.x, including its Java 17 baseline, new artifact and package names, Android considerations, and removed deprecated APIs. ### Source excerpt Learn what's new in Jackson 3, how it differs from Jackson 2, and what you need to do in order to migrate from Jackson 2.x to the new version. The post What's New in Jackson 3? first appeared on Baeldung. ## How to Fix Jackson JSON Parse Error Can not construct instance of java.time.LocalDate DevFeed: [How to Fix Jackson JSON Parse Error Can not construct instance of java.time.LocalDate]() Original publisher: [Read original article]() Author: Hiks Gerganov Published: 2026-08-22T23:26:23Z Content type: tutorial Language: en Sources: [Baeldung]() Topics: [Jackson, Java Dates, Exception, LocalDate](), [LocalDate](), [JSON](), [Exception](), [ISO 8601](), [Code]() Tags: [code](), [errors](), [exception](), [how-to](), [jackson](), [jackson-java-dates-exception-localdate](), [java](), [java-dates](), [json](), [learn](), [localdate](), [post](), [time](), [types]() ### AI overview This tutorial explains why Jackson may fail to deserialize JSON date values into Java's LocalDate or LocalDateTime, even when the JSON uses ISO-8601 formatting. It examines Jackson version support, missing Java Time module configuration, unsupported date formats, and mismatched date-time types, then presents ways to address the problem. ### Source excerpt Learn why sometimes Jackson can't construct an instance of LocalDate or LocalDateTime and how to fix the error it throws. The post How to Fix Jackson JSON Parse Error Can not construct instance of java.time.LocalDate first appeared on Baeldung. ## Automating Code Modernization with OpenRewrite - By Stefano Dalla Palma, Adyen DevFeed: [Automating Code Modernization with OpenRewrite - By Stefano Dalla Palma, Adyen]() Original publisher: [Read original article]() Author: Adyen Published: 2026-08-22T06:45:48Z Content type: article Language: en Sources: [Adyen Tech]() Topics: [Refactoring](), [Jackson, Java Dates, Exception, LocalDate](), [migration](), [Tooling](), [Development](), [Software Engineering]() Tags: [code-review](), [internal-developer-platform](), [jackson](), [migration](), [modernization](), [refactoring](), [software](), [software-engineering](), [tech](), [tooling]() ### AI overview An Adyen engineering team explores using OpenRewrite to automate code modernization and reduce the manual effort of framework, API, and static-analysis updates. The article describes a completed migration of an internal Jackson 2 wrapper to Jackson 3 across hundreds of modules and discusses integrating the tool into the build and CI workflow. ### Source excerpt Automating Code Modernization with OpenRewriteBy Stefano Dalla Palma - Development Tooling Engineer, Adyen In a large-scale engineering organization such as Adyen, where hundreds of developers produce hundreds of merge requests per day across thousands of modules, continuously evolving code to meet the latest standards is essential for long-term platform health and performance. However, executing routine updates manually, such as adopting new framework patterns, keeping up with API enhancements, or fine-tuning static analysis rules can introduce friction that takes developers away from building core features. When I joined Adyen's internal developer platform team, I wanted to understand whether any of that friction could be automated away. Around that time, I came across an episode of Software Engineering Radio (link) where the creator of OpenRewrite made an argument that stuck with me: "We are asking framework authors to start taking responsibility for providing recipes when they make breaking changes." I loved that framing. The hassle of keeping up shouldn't fall entirely on the consumers of a library, but on the people who changed the contract in the first place. While we couldn't change how external maintainers worked, we could adopt that mindset internally. I saw an opportunity: if a tool could absorb the friction of a breaking change, we could handle the cleanup on behalf of our developers. But my enthusiasm wasn't going to convince anyone. The engineers I pitched to wanted to see it work before they'd trust it, and I don't blame them. The only way to earn trust was to do the work: pick a real use case, drive it to completion, and let the results speak. One team had a ticket to migrate an internal Jackson 2 wrapper to Jackson 3, a tricky refactoring with deep caller dependencies across hundreds of modules, exactly the kind of high-effort, lower-urgency work that teams understandably prioritize behind customer-facing delivery. I asked if I could take a shot at ## Immutable jackson pojo with Lombok DevFeed: [Immutable jackson pojo with Lombok]() Original publisher: [Read original article]() Author: brice.dutheil@gmail.com (Brice Dutheil) Published: 2019-02-14T00:00:00Z Content type: tutorial Language: en Sources: [The Coffee Workshop]() Topics: [Java](), [Jackson, Java Dates, Exception, LocalDate](), [Code](), [maintenance](), [Tooling]() Tags: [code](), [generation](), [jackson](), [java](), [maintenance](), [project](), [reduce](), [tooling]() ### AI overview This article discusses keeping Java objects immutable when using code-generation tools such as Lombok and serialization tooling such as Jackson. It focuses on reducing repetitive accessors and constructor code while considering maintenance costs. ### Source excerpt The quest to immutable objects It's sometime hard to keep following good principles in object oriented paradigm especially if we'd like to enjoy modern tooling that those that generates code for us. ## Expressions régulières (Partie 2) DevFeed: [Expressions régulières (Partie 2)]() Original publisher: [Read original article]() Author: brice.dutheil@gmail.com (Brice Dutheil) Published: 2010-10-15T14:40:15Z Content type: tutorial Language: fr Sources: [The Coffee Workshop]() Topics: [Java](), [Jackson, Java Dates, Exception, LocalDate]() Tags: [java](), [regex]() ### AI overview Part two of a series on regular expressions explains capturing and non-capturing groups, backreferences, quantifiers, and the backtracking technique used by Java's regex engine. It also notes potential performance risks and the limit of ten group references. ### Source excerpt La première partie de cette mini-série s'est focalisée sur une petite intro, je n'ai pas vraiment insisté sur les bases des expressions régulières, j'ai juste abordé les ancres et les options, et j'ai parlé de certaines astuces à connaître. La suite de cette série continue comme prévu sur les constructions suivantes :