# java Published articles for java. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Logpoints Walkthrough DevFeed: [Logpoints Walkthrough]() Original publisher: [Read original article]() Author: Igor Kulakov Published: 2026-09-16T14:14:04Z Content type: tutorial Language: en Sources: [The JetBrains Blog]() Topics: [IntelliJ IDEA](), [debug](), [debugging](), [gRPC](), [Java](), [2026.2]() Tags: [2026-2](), [bug](), [client](), [command-line](), [debug](), [debugger](), [debugging](), [debugging-tools](), [idea](), [intellij](), [intellij-idea](), [java](), [kotlin](), [logpoints]() ### AI overview This walkthrough explains how to use logpoints in IntelliJ IDEA to investigate a bug in a gRPC client-server example that returns incorrect discount values. It covers reproducing the issue, attaching the debugger to the server, and observing program behavior without suspending execution, including improvements in IntelliJ IDEA 2026.2. ### Source excerpt Modern development tools, especially IntelliJ IDEA, have such comprehensive debugging support that for virtually any niche use case, there is a specialized tool for the job. This can make it hard to know where to begin. If you are new to debugging tools and want the biggest return on your learning investment, the best feature [...] ## Java 27 Delivers Post-Quantum Cryptography, Future Language Innovation, Helidon 27, JavaFX 27 DevFeed: [Java 27 Delivers Post-Quantum Cryptography, Future Language Innovation, Helidon 27, JavaFX 27]() Original publisher: [Read original article]() Author: Michael Redlich Published: 2026-09-16T10:00:00Z Content type: news Language: en Sources: [InfoQ]() Topics: [Java](), [java-27](), [Post-quantum cryptography](), [Cryptography](), [Security](), [Programming](), [releases]() Tags: [application-security](), [architecture-design](), [cryptography](), [development](), [digital-signature](), [helidon](), [java](), [java-27](), [java27-released](), [javafx](), [jdk-27](), [jdk-28](), [lattice](), [module](), [news](), [oracle](), [portfolio](), [post-quantum-cryptography](), [preview](), [project-valhalla](), [quantum-computing](), [release](), [security](), [structured-concurrency](), [vector]() ### AI overview Oracle released Java 27, the second non-LTS release since JDK 25. Its final feature set contains nine JEPs, including post-quantum hybrid key exchange for TLS 1.3, structured concurrency, compact object headers, JFR data redaction, the Vector API, and PEM encodings for cryptographic objects. Five features remain in preview or incubator stages. ### Source excerpt Oracle has released version 27 of the Java programming language and virtual machine. As the second non-LTS release since JDK 25, the final feature set includes nine JEPs, five of which are still progressing through the preview and incubator stages. This release focuses on strengthening security, future language innovation, and projects under the auspices of the Java Verified Portfolio. By Michael Redlich ## Kotlin on the server at Khan Academy DevFeed: [Kotlin on the server at Khan Academy]() Original publisher: [Read original article]() Author: Khan Academy Published: 2018-06-28T22:00:00Z Content type: article Language: en Sources: [Khan Academy]() Topics: [Kotlin](), [backend-development](), [Python](), [Google]() Tags: [api](), [bigquery](), [blog-post](), [developer-experience](), [engineering](), [google](), [http](), [infrastructure](), [java](), [kotlin](), [news](), [python](), [server-side-development]() ### AI overview Khan Academy describes testing Kotlin for user-facing server requests during a 2018 hackathon and deciding to adopt Kotlin as a second server-side language after reporting positive efficiency results and a positive developer experience. ### Source excerpt By Colin Fuller At Khan Academy, we run our web application using Python 2.7 on Google's App Engine ... Read more ## Java 27 adds improvements to garbage collection, headers, data security, and quantum key support DevFeed: [Java 27 adds improvements to garbage collection, headers, data security, and quantum key support]() Original publisher: [Read original article]() Author: Joab Jackson Published: 2026-09-16T04:50:00Z Content type: news Language: en Sources: [www.theregister.com - Articles]() Topics: [java-27](), [Java](), [Security](), [data]() Tags: [devops](), [garbage-collection](), [improvements](), [java](), [java-27](), [jdk](), [jdk-27](), [openjdk](), [post-quantum-cryptography]() ### AI overview Java 27 introduces improvements to JDK garbage collection, header sizes, data security, and quantum key support, with the stated aim of reducing developer friction. ### Source excerpt Improvements in JDK garbage collection, header sizes, data security and quantum key support all should minimize developer friction ## Integrating Java API Documentation with Hugo Using a Java 25 Doclet DevFeed: [Integrating Java API Documentation with Hugo Using a Java 25 Doclet]() Original publisher: [Read original article]() Author: Shai Almog Published: 2026-09-16T00:00:00Z Content type: article Language: en Sources: [CodeName One]() Topics: [Hugo](), [Java](), [Markdown](), [Documentation]() Tags: [documentation](), [hugo](), [java](), [markdown](), [search]() ### AI overview A Java 25 doclet converts Codename One API models and Markdown documentation comments into Hugo content. This integrates API pages with the site's existing theme and search while preserving member links and an offline Javadoc archive. ### Source excerpt A Java 25 doclet turns the Codename One API model and Markdown comments into Hugo content. The site gains integrated search and theming while preserving member links and the offline Javadoc archive. ## Spring Office Hours Podcast: S5E23 - Java 27 Release Party with Billy Korando DevFeed: [Spring Office Hours Podcast: S5E23 - Java 27 Release Party with Billy Korando]() Original publisher: [Read original article]() Author: danvega Published: 2026-09-16T00:00:00Z Content type: release Language: en Sources: [Spring]() Topics: [Java](), [java-27](), [JDK 27]() Tags: [batch](), [boot](), [cloud](), [developer](), [ecosystem](), [event-driven](), [java](), [java-27](), [live](), [live-stream](), [microservices](), [podcast](), [reactive](), [release](), [serverless](), [spring](), [web-applications]() ### AI overview A Spring Office Hours podcast episode discusses Java 27 with Billy Korando and highlights related launch updates and selected JDK enhancement proposals. ### Source excerpt Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun are joined by Kansas City JUG organizer and Java Developer Advocate, Billy Korando. In this episode, we celebrate the release of Java 27. You can participate in our live stream to ask questions or catch the replay on your preferred podcast platform. Show Notes JDK 27 Java 27 Launch Stream JEP 534: Compact Object Headers by Default JEP 523: Make G1 the Default Garbage Collector in All Environments JEP 533: Structured Concurrency (Seventh Preview) JEP 531: Lazy Constants (Third Preview) JEP 536: JFR In-Process Data Redaction Transitioning Java to more frequent security updates Project Babylon S5E22 - Live from KCDC Billy Korando on LinkedIn The show: springofficehours.io - episodes, schedule, community Spring Developer on YouTube - join us live every Monday Dan Vega DaShaun Carter The Spring Blog - the news we cover each week ## Java 27 Launch Stream DevFeed: [Java 27 Launch Stream]() Original publisher: [Read original article]() Author: On September Published: 2026-09-16T00:00:00Z Content type: news Language: en Sources: [Inside Java]() Topics: [java-27](), [JDK 27](), [Artificial Intelligence]() Tags: [ai](), [java](), [java-27](), [jdk-27](), [launch](), [release]() ### AI overview A launch stream celebrating the release of Java 27 and discussing key enhancements, platform changes, and developments involving Java and AI. ### Source excerpt On September 15 we celebrated the release of Java 27! We covered what's coming in JDK 27--from key enhancements and platform changes to the latest developments at the intersection of Java and AI. ## Java 27 in IntelliJ IDEA DevFeed: [Java 27 in IntelliJ IDEA]() Original publisher: [Read original article]() Author: Marit van Dijk Published: 2026-09-15T14:49:02Z Content type: tutorial Language: en Sources: [The JetBrains Blog]() Topics: [IntelliJ IDEA](), [Java](), [JDK 27]() Tags: [intellij-idea](), [java](), [java-27](), [jdk-27](), [news]() ### AI overview A tutorial on using Java 27 with IntelliJ IDEA, including downloading or configuring JDK 27 and setting the project language level. ### Source excerpt In line with the six-month release cadence, Java 27 was released on September 15, 2026. In this blog post, we will look at what's included in this release, how IntelliJ IDEA continues to support the latest Java versions, and even how IntelliJ IDEA is benefiting from some of the changes to the JDK. Java 27 [...] ## Java 27 Reaches GA With The G1 Garbage Collector By Default Everywhere DevFeed: [Java 27 Reaches GA With The G1 Garbage Collector By Default Everywhere]() Original publisher: [Read original article]() Author: Michael Larabel Published: 2026-09-15T13:39:00Z Content type: news Language: en Sources: [Phoronix]() Topics: [Java](), [openjdk](), [releases](), [Concurrency](), [Post-Quantum](), [TLS (Transport Layer Security)]() Tags: [availability](), [concurrency](), [desktop-linux](), [java](), [linux-benchmarking](), [linux-hardware-benchmarks](), [linux-hardware-reviews](), [linux-how-to](), [linux-performance](), [linux-server-benchmarks](), [open-source-graphics](), [openjdk](), [phoronix](), [phoronix-test-suite](), [post-quantum](), [release](), [structured-concurrency](), [tls](), [ubuntu-benchmarks](), [ubuntu-hardware]() ### AI overview OpenJDK 27 has reached general availability. Its G1 garbage collector is now enabled by default across environments, replacing Serial as the default in constrained environments after improvements in throughput, latency, and memory usage. The release also includes post-quantum hybrid key exchange for TLS 1.3, preview features for lazy constants and structured concurrency, compact object headers by default, and an incubating Vector API. ### Source excerpt Oracle christened Java 27 today with the OpenJDK 27 release reaching general availability (GA) status... ## Security updates for Tuesday DevFeed: [Security updates for Tuesday]() Original publisher: [Read original article]() Author: jzb Published: 2026-09-15T13:10:46Z Content type: news Language: en Sources: [LWN.net]() Topics: [Security](), [Debian](), [Fedora](), [Ubuntu](), [Linux](), [Grafana](), [nginx]() Tags: [debian](), [grafana](), [hat](), [java](), [linux](), [mozilla](), [network](), [nginx](), [openssl](), [php](), [podman](), [python](), [rust](), [security](), [systemd](), [ubuntu](), [updates](), [vim]() ### AI overview Debian, Fedora, Mageia, Red Hat, SUSE, and Ubuntu issued security updates for a broad range of packages and components, including Linux-related tools, libraries, servers, programming environments, and desktop software. ### Source excerpt Security updates have been issued by Debian (network-manager-l2tp and urwid), Fedora (perl-Dancer2, perl-Data-Entropy, perl-DBI, perl-Protocol-HTTP2, podman-tui, rust-lru, and rust-lru0.16), Mageia (bzip2, cups-filters, libcupsfilters, libssh2, perl-Authen-SASL, perl-HTML-FormFu, tar, unzip, and zip), Red Hat (grafana and image-builder), SUSE (389-ds, acl, attr, apache2-mod_auth_openidc, apr-util, aws-nitro-enclaves-cli, bzip2, c-ares, clamav, cpio, curl, dhcpcd, dovecot23, dovecot24, dracut, emacs, fuse-overlayfs, go1.25-openssl, go1.26-openssl, google-cloud-sap-agent, google-osconfig-agent, govulncheck-vulndb, gstreamer-devtools, gzip, helm, java-17-openjdk, java-21-openjdk, java-25-openjdk, jq, libBasicUsageEnvironment2, libgpg-error, libidn, librest, libusb-1_0, libvirt, LibVNCServer, libzypp, zypper, lkl, mcphost, MozillaFirefox, mozilla-nspr, mozilla-nss, rust-cbindgen, MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen, MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss, rust-cbindgen, msgpack-c, multipath-tools, NetworkManager, openexr, openssl-3, perl-Protocol-HTTP2, perl-URI, php-composer2, postgresql14, postgresql15, postgresql16, postgresql17, postgresql18, python-aiohttp, python-cryptography, python-h2, python-ruff, python-sqlparse, python311, python312, python39.SUSE_SLE-15-SP3_Update, rav1e, rpcbind, sssd, systemd, tomcat, tomcat11, ucode-intel, udisks2, vim, and wicked2nm), and Ubuntu (cgit, dracut, freeciv, konsole, libinput, linux-azure, linux-nvidia-7.0, nginx, vips, and yelp). ## Gson Deserialization and the InaccessibleObjectException DevFeed: [Gson Deserialization and the InaccessibleObjectException]() Original publisher: [Read original article]() Author: Marcin Buczkowski Published: 2026-09-15T05:32:46Z Content type: tutorial Language: en Sources: [Baeldung]() Topics: [Exception](), [JSON](), [Tutorial](), [Java]() Tags: [exception](), [gson](), [how-to](), [java](), [json](), [json-gson](), [tutorial]() ### AI overview This tutorial explains how Java's strong encapsulation and the Java Platform Module System can cause InaccessibleObjectException when Gson deserializes JSON through reflection. It focuses on modular projects, date handling, and Gson's maintenance status. ### Source excerpt Learn how to resolve an InaccessibleObjectException when working with Gson and modern Java versions. The post Gson Deserialization and the InaccessibleObjectException first appeared on Baeldung. ## Who am I ? DevFeed: [Who am I ?]() Original publisher: [Read original article]() Author: brice.dutheil@gmail.com (Brice Dutheil) Published: 2026-09-15T04:32:32.192351Z Content type: article Language: fr Sources: [The Coffee Workshop]() Topics: [Java](), [Kubernetes](), [Open Source](), [backends]() Tags: [java](), [jvm](), [kubernetes](), [open-source]() ### AI overview The author describes himself as primarily a Java and JVM developer, with experience using Kubernetes and contributing to open-source projects. He previously worked on Mockito, has spent ten years working on backends across various sectors, and currently works for BlaBlaCar. ### Source excerpt English 🇬🇧/🇺🇸 I'm mostly a Java / JVM guy. Now I'm also a Kubernetes user in surface, so I now a few system tricks. ## Native Drag and Drop Meets Cross-Device Continuity DevFeed: [Native Drag and Drop Meets Cross-Device Continuity]() Original publisher: [Read original article]() Author: Shai Almog Published: 2026-09-15T00:00:00Z Content type: article Language: en Sources: [CodeName One]() Topics: [Java](), [Persistence](), [Framework](), [payload](), [LineageOS](), [Processes](), [browser]() Tags: [android](), [apis](), [browser](), [java](), [native](), [payload](), [persistence](), [process](), [screen](), [state]() ### AI overview Codename One adds cross-device continuity and native drag-and-drop through shared Java APIs. The article explains how to save reconstructible application state, restore it after account verification, and transfer it between devices and applications. ### Source excerpt Drag files into another application and pick up a task on another device. Codename One adds native drag and drop and cross-device continuity through shared Java APIs. ## This Week in Spring - September 15th, 2026 DevFeed: [This Week in Spring - September 15th, 2026]() Original publisher: [Read original article]() Author: joshlong Published: 2026-09-15T00:00:00Z Content type: article Language: en Sources: [Spring]() Topics: [Spring AI](), [Java](), [Security](), [OAuth 2.0](), [Spring Boot](), [JavaFX](), [IntelliJ IDEA](), [debugging]() Tags: [batch](), [boot](), [cloud](), [debugging](), [event-driven](), [intellij-idea](), [java](), [learn](), [microservices](), [oauth-2-0](), [reactive](), [security](), [serverless](), [spring](), [spring-ai](), [web-applications]() ### AI overview A September 15, 2026 roundup of Spring-related developer content, covering Java memory management, Spring AI chat-memory summarization, JavaFX application security with Spring Security and OAuth 2.0, OAuth 2.1 with Spring Authorization Server, Spring and Gemini video understanding, Java AI libraries, Netflix's Java and Spring story, Spring Batch, and Spring Boot debugging. ### Source excerpt Hi, Spring fans! Welcome to another rip-roarin' installment of This Week in Spring! I'm writing this to you from sun-kissed San Francisco, CA, sipping some coffee and watching the bay from my breakfast nook. What a wonderful day! A wonderful day in which to learn about the latest and greatest in Spring, even! Let's dive right in! I really loved this presentation by Oracle's Ron Pressler on the principles of memory management in Java More Craig Walls Spring AI goodness! Here's a nice recipe on summarizing chat memory Over the last few weeks, I've done some content on securing JavaFX applications with Spring Security and OAuth 2.0. That work has landed, and our friends at JFX-central.com have taken that video and the resulting code and transcribed the content into this lovely tutorial - check it out! I loved this post on securing modern applications with OAuth 2.1 and Spring Authorization Server This is a really cool video on understanding video with Spring and Gemini I just learned about this amazing new Java library called Quixotic.ai (what a name! LOL) that provides all sorts of cool stuff that might make your Java-based AI workloads even better. I wonder if there are amazing integration possibilities for Spring AI, too... In last week's A Bootiful Podcast, I was delighted to sit down and chat with Netflix's Paul Bakker on their Java and Spring story, scaling the system, and more. Huh! There's a new Spring Batch IntelliJ IDEA plugin, but search me for what's new! No release notes. Either way, get it while it's hot! Speaking of Spring Batch, there's a nice post here on scaling to millions of rows with Spring Batch that just dropped Speaking of Spring and IntelliJ, there's a nice article over on Baeldung on debugging Spring Boot-based workloads with the Spring debugger ## JDK 27 Is Generally Available with Nine JEP-Backed Enhancements DevFeed: [JDK 27 Is Generally Available with Nine JEP-Backed Enhancements]() Original publisher: [Read original article]() Author: On September Published: 2026-09-15T00:00:00Z Content type: release Language: en Sources: [Inside Java]() Topics: [JDK 27](), [Java](), [Security](), [Cryptography](), [Quantum Computing]() Tags: [announce](), [cryptography](), [improvements](), [java](), [jdk](), [jdk-27](), [oracle](), [quantum](), [security]() ### AI overview Oracle announces the general availability of JDK 27, which includes nine enhancements covered by JDK Enhancement Proposals, including preview and incubator features across the Java language, security, performance, runtime, and libraries. ### Source excerpt JDK 27 is now available! Oracle is proud to announce the general availability of JDK 27 for developers, enterprises, and end-users. ## Generating Java bytecode: Write yourself a compiler, Part V DevFeed: [Generating Java bytecode: Write yourself a compiler, Part V]() Original publisher: [Read original article]() Published: 2026-09-14T22:00:00Z Content type: tutorial Language: en Sources: [Tomasz Nurkiewicz around Java and concurrency]() Topics: [Java](), [Compiler](), [Programming]() Tags: [bytecode](), [compiler](), [file](), [go](), [interpreter](), [java](), [jvm](), [virtual-machine](), [writing-compiler]() ### AI overview This tutorial explains how to extend a toy-language compiler to emit valid JVM bytecode in a .class file that can run on the Java Virtual Machine. It introduces JVM instruction families for pushing integer values and explains how the constant pool stores constants and symbolic references for reuse. ### Source excerpt Last time we created a virtual machine for our toy language. I think you can agree that designing a language which barely recognizes expressions like 2 + 3w and building a brand-new virtual machine for it seems a bit tedious. So what about keeping our microscopic language for now, but running it on a real, production-ready, battle-proven virtual machine? Like the Java Virtual Machine? Our task for today is to emit JVM bytecode in the form of a valid .class file. That file can then be fed directly to the JVM to run our program. ## Java News Roundup: New OpenJDK JEPs, CDI 5.0, Spring, Open Liberty, RefactorFirst, ADK for Kotlin DevFeed: [Java News Roundup: New OpenJDK JEPs, CDI 5.0, Spring, Open Liberty, RefactorFirst, ADK for Kotlin]() Original publisher: [Read original article]() Author: Michael Redlich Published: 2026-09-14T20:15:00Z Content type: news Language: en Sources: [InfoQ]() Topics: [Java](), [Concurrency](), [JDK 27](), [releases](), [Jakarta EE](), [Gradle](), [Groovy]() Tags: [2026](), [architecture-design](), [concurrency](), [development](), [gradle](), [groovy](), [jakarta-ee](), [java](), [java-news-roundup-sep07-2026](), [jdk-27](), [jdk-28](), [kotlin](), [micronaut](), [news](), [open-jdk](), [open-liberty](), [refactorfirst](), [releases](), [spring-framework](), [tornadovm]() ### AI overview A Java news roundup for September 7, 2026, covers new OpenJDK proposals for ahead-of-time compilation and structured concurrency, Jakarta CDI 5.0 and ADK for Kotlin 1.0, Open Liberty, TornadoVM, RefactorFirst, Micronaut, Groovy 6.0, and Gradle 9.8. It also reports current JDK 27 and JDK 28 early-access builds and describes improvements in TornadoVM 6.1.0. ### Source excerpt This week's Java roundup for September 7th, 2026, features news highlighting: new JEPs for ahead-of-time compilation and structured concurrency; GA releases of Jakarta CDI 5.0 and ADK for Kotlin 1.0; the September 2026 edition of Open Liberty; point releases of TornadoVM and RefactorFirst; a maintenance release of Micronaut; and first releases candidates of Groovy 6.0 and Gradle 9.8. By Michael Redlich ## 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. ## Java Weekly, Issue 663 DevFeed: [Java Weekly, Issue 663]() Original publisher: [Read original article]() Author: baeldung Published: 2026-09-13T11:00:00Z Content type: article Language: en Sources: [Baeldung]() Topics: [Architecture & Design](), [coding](), [releases]() Tags: [agent](), [agentic](), [ai](), [architecture](), [java](), [kotlin](), [no-ads](), [no-after-post](), [no-before-post](), [no-optins](), [releases](), [spec-driven-development](), [spring](), [spring-boot](), [weekly-review](), [weekly-review-no-ads-no-after-post-no-before-post-no-optins]() ### AI overview A Java-focused weekly roundup featuring spec-driven development, agent memory and AI-agent articles, technical presentations, and software release announcements. ### Source excerpt A better spec-driven development and the brain as example architecture. The post Java Weekly, Issue 663 first appeared on Baeldung. ## Java 27 Technically Within 2 Minutes DevFeed: [Java 27 Technically Within 2 Minutes]() Original publisher: [Read original article]() Author: Billy Korando Published: 2026-09-13T00:00:00Z Content type: article Language: en Sources: [Inside Java]() Topics: [JDK 27]() Tags: [java](), [jdk](), [jdk-27](), [livestream](), [release](), [review]() ### AI overview A brief review of the nine JDK Enhancement Proposals included in the JDK 27 release, with an invitation to a Java 27 livestream featuring live demos and guests. ### Source excerpt Let's review in about 2 minutes the 9 JEPs (JDK Enhancement Proposals) that were included in the JDK 27 release! ## ParparVM Reduces HashMap Miss Costs with a New Probe Sequence DevFeed: [ParparVM Reduces HashMap Miss Costs with a New Probe Sequence]() Original publisher: [Read original article]() Author: Shai Almog Published: 2026-09-13T00:00:00Z Content type: article Language: en Sources: [CodeName One]() Topics: [Java](), [Data structures](), [Benchmark]() Tags: [benchmark](), [compare](), [java]() ### AI overview This article examines pathological missing-key performance in ParparVM's Java HashMap. It identifies linear probing through dense key runs and tombstones as the cause, then describes a fix that preserves the first probe while using a CPython-style recurrence for subsequent probes. The change improved misses but slowed some dense-key construction and scan workloads by 1.8 to 2.2 times in the measured cases. ### Source excerpt ParparVM fixes pathological map misses and extends tagged boxed values. Probe counts, allocation coverage, and regressions show where ordinary Java collections became cheaper. ## What Go Taught Us About Java Garbage Collection DevFeed: [What Go Taught Us About Java Garbage Collection]() Original publisher: [Read original article]() Author: Shai Almog Published: 2026-09-12T00:00:00Z Content type: opinion Language: en Sources: [CodeName One]() Topics: [Go Language](), [Java](), [benchmarking]() Tags: [comparison](), [garbage-collection](), [go](), [java](), [latency](), [memory](), [performance]() ### AI overview A comparison between ParparVM and Go prompts an investigation into Java garbage-collection pacing, allocation thresholds, and memory use. Lowering ParparVM's allocation threshold reduced measured process resident memory from 98 MB to 38 MB, while throughput and p99 latency changed little in the reported test. ### Source excerpt A Go performance comparison led us from stack allocation to GC pacing, parallel marking, and image caches. ParparVM can explore those choices while keeping ordinary Java APIs. ## Meet Jos Roseboom DevFeed: [Meet Jos Roseboom]() Original publisher: [Read original article]() Author: vladmihalcea Published: 2026-09-11T04:23:25Z Content type: article Language: en Sources: [Vlad Mihalcea]() Topics: [Java](), [Spring Framework](), [Spring Boot](), [Jakarta EE](), [Development]() Tags: [2026](), [article](), [blog](), [community](), [conference](), [framework](), [hibernate](), [interview](), [jakarta-ee](), [java](), [jpa](), [performance](), [performance-tuning](), [spring](), [spring-boot]() ### AI overview An interview with Jos Roseboom about JPA and Hibernate performance tuning, based on his JavaZone talk. He describes production incidents involving exhausted database connections and excessive queries caused by fetching entities and following associations. ### Source excerpt JavaZone 2026 At the beginning of September, I participated in JavaZone for the third time and had the privilege of meeting a lot of passionate software developers willing to share their knowledge with the community. In the first conference day, I attended a very good talk about JPA performance tuning that was delivered by Jos Roseboom and since I enjoyed his talk, I proposed him to gave an interview for this blog. Therefore, in this article we have the pleasure of getting to know Jos and take opportunity of learning about Spring... Read More The post Meet Jos Roseboom appeared first on Vlad Mihalcea. ## Codename One Performance Work Covers Benchmarks, Runtime Overhead, and Native Features DevFeed: [Codename One Performance Work Covers Benchmarks, Runtime Overhead, and Native Features]() Original publisher: [Read original article]() Author: Shai Almog Published: 2026-09-11T00:00:00Z Content type: article Language: en Sources: [CodeName One]() Topics: [Programming](), [Java](), [JavaScript](), [App]() Tags: [benchmark](), [benchmarks](), [java](), [javascript](), [performance](), [process]() ### AI overview The article describes Codename One performance work across maps, garbage collection, rendering, startup, memory use, and generated JavaScript. It also reports Java APIs for native drag and drop and cross-device continuity. ### Source excerpt Codename One tackles GC, maps, startup, and JavaScript overhead, and adds native drag and drop plus cross-device continuity. Javadoc joins website search as we prepare for Android API 37. [Next page]()