--- title: Java, null, and JSpecify | daily.dev description: Kevin Bourrillion presents an introduction to JSpecify, a project that defines a standard set of annotations for Java static analysis focused on null tracking.... canonical: https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Java, null, and JSpecify | daily.dev og:description: Kevin Bourrillion presents an introduction to JSpecify, a project that defines a standard set of annotations for Java static analysis focused on null tracking.... og:url: https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd og:image: https://api.daily.dev/og/posts/6YfBwpHXd.png og:image:alt: Java, null, and JSpecify 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. # Java, null, and JSpecify **[nipafx \(Nicolai Parlog\)](https://daily.dev/sources/nipafx)** · 2 min read · 0 upvotes · 0 comments ## Summary Kevin Bourrillion presents an introduction to JSpecify, a project that defines a standard set of annotations for Java static analysis focused on null tracking. The presentation covers the problems with null and existing annotations, the design of JSpecify, and its current status. A follow-up video covering Project Valhalla's relationship with null and audience Q&A is planned separately. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [One Could Simply Add Nullability Check Support… Without Even Noticing It](https://daily.dev/posts/one-could-simply-add-nullability-check-support-without-even-noticing-it-t5jmmum79) · JetBrains · 7 upvotes · 0 comments - [Micronaut 5 adoption of the JSpecify nullability annotations](https://daily.dev/posts/micronaut-5-adoption-of-the-jspecify-nullability-annotations-jhrgtm2a1) · Micronaut Framework · 9 upvotes · 0 comments - [Null-Safe applications with Spring Boot 4](https://daily.dev/posts/null-safe-applications-with-spring-boot-4-ufnxqhfid) · Spring · 132 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd) ```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":"Java, null, and JSpecify","url":"https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd"},"datePublished":"2026-03-16T08:13:48.250Z","dateModified":"2026-03-16T08:23:43.666Z","description":"Kevin Bourrillion presents an introduction to JSpecify, a project that defines a standard set of annotations for Java static analysis focused on null tracking....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a0d9245f096b7f101083c3511cd98f6a?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a0d9245f096b7f101083c3511cd98f6a?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"nipafx (Nicolai Parlog)","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":"nipafx (Nicolai Parlog)","logo":"https://media.daily.dev/image/upload/s--H_Echo_u--/f_auto,q_auto/v1773648772/logos/nipafx?_a=BAMAMiiu0","url":"https://daily.dev/sources/nipafx"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/java-null-and-jspecify-6yfbwphxd","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"java","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"nipafx (Nicolai Parlog)","item":"https://daily.dev/sources/nipafx"},{"@type":"ListItem","position":3,"name":"Java, null, and JSpecify"}]} ```