--- title: Best Inside Java posts — May 2026 | daily.dev description: The most upvoted Inside Java posts from May 2026, curated by the daily.dev community. canonical: https://daily.dev/sources/inside_java/best-of/2026/05 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/inside_java/best-of/2026/05 og:type: website og:site_name: daily.dev og:title: Best Inside Java posts — May 2026 | daily.dev og:description: The most upvoted Inside Java posts from May 2026, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Inside Java — May 2026 1. 1 [](https://daily.dev/posts/episode-57-make-java-safer-with-flexible-constructor-bodies-inside-java-kszbvsykj "Episode 57 “Make Java Safer with Flexible Constructor Bodies” – Inside.java") Article Inside Java · 19w Episode 57 “Make Java Safer with Flexible Constructor Bodies” – Inside.java Java 25 introduces flexible constructor bodies via JEP 513, a feature that addresses longstanding limitations in how constructors worked. Previously, developers were forced to write convoluted code or risk undermining the safety and integrity of child classes. This Inside Java Podcast episode with Billy Korando explains the problems with the old constructor model and demonstrates how flexible constructor bodies allow Java developers to write safer, better-designed code. 23 2. 2 [](https://daily.dev/posts/java-26-better-language-better-apis-better-runtime-inside-java-gyzzrepap "Java 26: Better Language, Better APIs, Better Runtime – Inside.java") Article Inside Java · 17w Java 26: Better Language, Better APIs, Better Runtime – Inside.java A comprehensive overview of Java changes from JDK 21 through JDK 26, covering language improvements (unnamed patterns, flexible constructors, module imports, primitive patterns, lazy constants), new and finalized APIs (foreign-function and memory API, stream gatherers, class-file API, PEM encoding, HTTP/3), runtime enhancements (faster startup, improved garbage collection), tooling updates (simpler main, multi-source-file programs, Markdown in JavaDoc), security additions (quantum-resistant encryption), and updated structured concurrency. The talk also highlights JDK 26 preview features and new command-line options for deep reflection. 35 2 3. 3 [](https://daily.dev/posts/jep-targeted-to-jdk-27-532-primitive-types-in-patterns-instanceof-and-switch-5th-preview-ins-tczuxys4k "JEP targeted to JDK 27: 532: Primitive Types in Patterns, instanceof, and switch (5th Preview) – Inside.java") Article Inside Java · 18w JEP targeted to JDK 27: 532: Primitive Types in Patterns, instanceof, and switch (5th Preview) – Inside.java JEP 532, targeting JDK 27, extends pattern matching to support primitive types in patterns, instanceof, and switch expressions. This is the fifth preview of the feature, continuing its refinement before potential finalization in a future Java release. 13 [See all Inside Java archives](/sources/inside%5Fjava/best-of) ```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","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/inside_java/best-of/2026/05#page","url":"https://daily.dev/sources/inside_java/best-of/2026/05","name":"Best Inside Java Posts — May 2026","description":"The most upvoted Inside Java posts from May 2026, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/inside_java/best-of/2026/05#items","numberOfItems":3,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/episode-57-make-java-safer-with-flexible-constructor-bodies-inside-java-kszbvsykj","name":"Episode 57 “Make Java Safer with Flexible Constructor Bodies” – Inside.java"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/java-26-better-language-better-apis-better-runtime-inside-java-gyzzrepap","name":"Java 26: Better Language, Better APIs, Better Runtime – Inside.java"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/jep-targeted-to-jdk-27-532-primitive-types-in-patterns-instanceof-and-switch-5th-preview-ins-tczuxys4k","name":"JEP targeted to JDK 27: 532: Primitive Types in Patterns, instanceof, and switch (5th Preview) – Inside.java"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"Inside Java","item":"https://daily.dev/sources/inside_java"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/inside_java/best-of"},{"@type":"ListItem","position":5,"name":"May 2026"}]}]} ```