OpenJDK
JEP 546（ZGC 堆大小自适应调整）已经从候选状态提升至 Proposed to Target 状态，并被列为 JDK 28 的目标功能。该 JEP 提议“增强 Z 垃圾收集器，使其能够根据可用的资源、应用程序的需求以及与该应用程序争夺相同资源的邻近应用程序的需求，自适应地调整堆的大小。” 该提案的评审于 2026 年 10 月 14 日星期三结束。
JEP 545（利用 ZGC 加快启动和预热）已经从候选状态提升至 Proposed to Target 状态，并被列为 JDK 28 的目标功能。该 JEP 提议“通过增强 Z 垃圾回收器，使其能够更快速、高效地根据应用程序的需求获取和准备物理内存，从而改善应用程序的启动和预热过程”。该提案的评审于 2026 年 10 月 14 日星期三结束。
JEP 543（结构化并发）已经从候选状态提升至 Proposed to Target 状态，并被列为 JDK 28 的目标功能。在经过七轮预览（从 JDK 21 到即将发布的 JDK 27）以及两轮孵化（在 JDK 19 和 JDK 20 中）后，该 JEP 没有对该功能做任何修改，而只是最终将其确定下来。该功能通过引入结构化并发来简化并发编程，旨在“将运行在不同线程中的相关任务组视为单一工作单元，从而简化错误处理和取消操作，提高可靠性，并增强可观察性”。评审于 2026 年 10 月 13 日星期二结束。
JEP 547（惰性常量第四个预览版）已经从 JEP Draft 8389764 提升至候选状态。该 JEP 在 JDK 25、JDK 26 以及即将发布的 JDK 27 中经历了三轮预览后，现在推出了第四个预览版，内容未作任何更改。该功能原名为“稳定值和计算常量”（Stable Values and Computed Constants），引入了“计算常量”的概念，其定义为最多初始化一次的不可变值容器。该常量既具备 final 字段的性能和安全优势，又在初始化时机方面提供了更大的灵活性。随着 JDK 26 的发布，名称从“稳定值”变成了“惰性常量”，为的是更准确地体现其高级用例的意图。
JDK 28
JDK 28 的早期访问构建 Build 19 发布，它是 Build 18 的升级，修复了各种问题。要了解关于这个构建的更多细节，请参阅发布说明。
对于 JDK 28，欢迎开发者通过 Java Bug 数据库报告 Bug。
GlassFish
GlassFish 8.0.5 发布，带来了 Bug 修复、文档改进、依赖项升级以及一些新功能，包括：更新了 ZipPayloadImpl 类，根据 ZIP64 Extra Fields（JDK-8302483）规范，在 extra 头中包含 Header ID 和 Data Size 值；优化大型和小型应用程序的部署时间。要了解有关该版本的更多详细信息，请参阅发布说明。
Apache Grails
Apache Grails 8.0.0 发布，带来了 Bug 修复、文档改进、依赖项升级以及以下新功能：JDK 21 和 Gradle 9.7 为最低支持版本；所有控制器现在均作为 REST 资源，通过请求而非映射来解析 Controller；Grails Promises 现在基于 Spring Boot Task Executor 运行。要了解有关该版本的更多详细信息，请参阅发布说明。
TornadoVM
TornadoVM 7.2.0 和 7.1.0 发布，带来了以下值得注意的变更：在 KernelContext 类中新增了 mmaLoadA() 和 mmaLoadB() 方法，分别返回 HalfFloat 类的 8 元素和 4 元素片段； 此外，CUDACommandQueue、CUDAEvent 和 CUDAHandles 类也进行了更新，现在能够准确报告内核启动和数据传输的驱动程序调度时间。要了解有关该版本的更多详细信息，请参阅 7.2.0 和 7.1.0 版本的发布说明。
Open Liberty
Open Liberty 26.0.0.10 GA 版本发布，带来了以下内容：Bug 修复；对 JDK 27 的支持；针对影响 Open Liberty 各项功能的七个 CVE 的修复。开发者需要注意，由于 G1 现在已经成为所有环境中默认的垃圾回收器，在受限环境中运行 Open Liberty 的用户可能会遇到与早期 Java 版本不同的垃圾回收行为。
Infinispan
Infinispan 16.3.0（代号 Tripel Karmeliet，寓意“稳健”）发布，带来了 Bug 修复、文档改进、依赖项升级以及以下新功能：在合并分区时，采用更高效的基于哈希的冲突检测和解决机制；增强配置功能，实现属性存储的持久化，使其在重启后仍然能保留；优化日志记录功能，减少日志噪音。要了解有关该版本的更多详细信息，请参阅发布说明。
LangChain4j
LangChain4j 1.22.0 的正式版本（连同第 32 个 Beta 测试版）提供了 Bug 修复、文档改进、依赖项升级以及以下新功能：一个新的 BedrockBatchChatModel 类，实现了 Bedrock 批量推理 API 中的核心接口 BatchChatModel；新增 OpenAiDecisionModel 和 OpenAiOfficialDecisionModel 类，用于支持 OpenAI Decisions API。要了解有关该版本的更多详细信息，请参阅发布说明。
Micronaut
基于 Micronaut Core 5.2.15 的 Micronaut Framework 5.2.2 发布，更新 Netty 至 4.2.19.Final 版本，并修复了 16 个 CVE 漏洞，包括 HTTP 请求/响应走私以及 HTTP、HTTP/2 和 HTTP/3 编解码器中的无界资源消耗问题。此外，Micronaut Data 和 Micronaut Test Resources 模块也进行了补丁更新。要了解有关该版本的更多详细信息，请参阅发布说明。
Spock
Spock 2.5.0 发布，带来了 Bug 修复和一些新功能，包括：支持 Groovy 6 和 Spring Framework 7；对 TooManyInvocationsError 类进行了改进，使其可以报告未满足预期的交互，使开发者能更轻松地诊断调用不匹配问题；支持在 where: 代码块中声明 final 局部变量。要了解有关该版本的更多详细信息（包括破坏性变更），请参阅发布说明。
原文链接：https://www.infoq.com/news/2026/10/java-news-roundup-oct05-2026/
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OpenJDK
JP 546 (ZGC stack size adaptation) has been raised from candidate status to Target status and is classified as target function for JDK 28. The JP proposal “enhanced the Z garbage collector to enable it to adapt the size of the stack to the available resources, the needs of the application and the needs of the adjacent application that competes for the same resources.” The review of the proposal ended on Wednesday, 14 October 2026.
JP 545 (with ZGC to accelerate start-up and preheat) has been upgraded from candidate to Target status and is listed as the target function for JDK 28. The JP proposes “to improve the process of start-up and preheating of applications by enhancing the Z garbage recycler to enable it to acquire and prepare physical memory more quickly and efficiently according to the needs of the application”. The review of the proposal ended on Wednesday, 14 October 2026.
JP 543 (Structuralized co-production) has been upgraded from candidate status to position status and is listed as target function for JDK 28. After seven rounds of preview (from JDK 21 to JDK 27 to publish) and two rounds of incubation (in JDK 19 and JDK 20), the JP did not make any changes to the function, but only finalized it. The function, which is streamlined and programmed by introducing a structured and distributed approach, is intended “to treat the task forces that operate in different threads as a single work unit, thereby simplifying error-processing and cancellation operations, improving reliability and enhancing observability”. The review ended on Tuesday, 13 October 2026.
JP 547 (fourth preview of inert constant) has been raised from JP Draft 8389764 to candidate status. After three rounds of previews in JDK 25, JDK 26 and JDK 27, which is about publish, the JEP has now launched a fourth preview without any change in content. The function, formerly known as "Stable Values and Calculated Constants" (Stable Values and Computed Constants), introduces the concept of "calculated Constants" as a non-variable packaging with maximum initialization. The constant provides both the performance and security advantages of final field and greater flexibility in the timing of initialization. With JDK 26's publish, the name was changed from a “stabilized value” to a “inert constant” in order to more accurately reflect its intention to use its high-level examples.
JDK 28
The early access of JDK 28 built Build 19 publish, an upgrade of Build 18, which repaired problems. For more details about this construction, see the description of publish.
For JDK 28, developers are welcome to report Bug through Java Bug database.
GlassFish
GlassFish 8.5 publish, which brings Bug fixes, document improvements, dependency upgrades, and a number of new features, including: updating of the ZipPayloadImpl category to include Header ID and Data Size values at the head of the Extra according to ZIP64 Extra Fields (JDK-8302483) norms; optimizing deployment times for large and small applications. For more details about this version, please refer to publish.
Apache Grails
Apache Grails 8.0.0 publish, which brings Bug fixes, document improvements, relying on upgrades, as well as the following new features: JDK 21 and Gladle 9.7 are the lowest supported versions; all controllers are now used as RET resources to analyze Controller by requesting rather than mapping; Grails Promises are now based on Spring Boot Task Executor. For more details about this version, please refer to publish.
TornadoVM
Tornado VM 7.2.0 and 7.1.0 publish have brought the following notable changes: the MMALoadA() and MMALOADB() methods have been added to the KernelContext category to return the 8 and 4 elemental clips of the HalfFloat category, respectively; furthermore, the CUDACommandQueue, CUDAEvent and CUDAHandles categories have been updated and are now able to report accurately on the driver schedule of the internal nuclear launch and data transfer. For more detailed information on this version, see the descriptions of publish in versions 7.2.0 and 7.1.0.
Open Liberty
Open Liberty 26.0.0.10 GA version publish, which brings with it the following: Bug restoration; support for JDK 27; and seven CVE restorations for functions affecting Open Liberty. Developers need to note that, as G1 is now a default waste recycler in all settings, Open Liberty users who operate in restricted environments may encounter different waste recycles from the earlier Java version.
Infinispan
Infinispan 16.3.0 (coded Tripel Karmeliet, meaning “Stable”) publish, which brings Bug fixation, document improvement, dependency upgrades and the following new features: When merging the partitions, use more efficient Hashi-based conflict detection and resolution mechanisms; enhance configurations to sustain the storage of properties so that they can remain after they are restarted; optimize log recording and reduce log noise. For more details about this version, please refer to publish.
LangChain4j
The official version of LangChain4j 1.22.0 (with 32 Beta test version) provides Bug fixes, document improvements, relying on upgrades, and the following new features: a new BedrockBarchChatModel class, which enables the core interface in Bedrock BatchChatModel in API; new OpenAiDecisionModel and OpenAiOfficialDisionModel categories to support Open AI Decisions API. For more details about this version, please refer to publish.
Micronaut
Micronaut Framework 5.2.2 publish, based on Micronaut Core 5.2.15, updates Netty versions to 4.2.19.Final and repairs 16 CVE loopholes, including HTTP requests/responses to smuggling and unbound resource consumption in HTTP, HTTTP/2 and HTTP/3 decodifiers. In addition, the Micronaut Data and Micronaut Test Resources modules were updated with patches. For more details about this version, please refer to publish.
Spock
Spock 2.5.0 publish, which brings with it Bug fixes and a number of new features, including: support for Groovy 6 and Spring Framework 7; refinements to the TooManyInvocations Error category to enable it to report non-satisfactory interactions and make it easier for developers to diagnose calls for mismatches; and support for the declaration of local variables in the area: code blocks. For more detailed information on this version (including destructive changes), please refer to publish.
Original link: https://www.infoq.com/news/226/10/java-news-roundup-oct05-2026/
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