This week’s Java roundup for December 15th, 2025, features news highlighting: the fifteenth milestone release of GlassFish 8.0; the first release candidate of Spring Shell 4.0; point releases of TornadoVM, Hibernate Reactive, Hibernate Search and Kotlin; the first beta release of WildFly 39; and maintenance releases of Micronaut Helidon and Vert.x.
JDK 26
Build 29 of the JDK 26 early-access builds was made available this past week featuring updates from Build 28 that include fixes for various issues. More details on this release may be found in the release notes.
JDK 27
Build 3 of the JDK 27 early-access builds was also made available this past week featuring updates from Build 2 that include fixes for various issues. Further details on this release may be found in the release notes.
For JDK 26 and JDK 27, developers are encouraged to report bugs via the Java Bug Database.
GlassFish
The fifteenth milestone release of GlassFish 8.0.0 delivers bug fixes, dependency upgrades and new features such as: support for NoSQL entities in Jakarta Data; and ensure that the TCKs for all the supported MicroProfile specifications and the Jakarta MVC specification still pass their respective tests. OmniFish, the team that leads maintenance of GlassFish, states that this milestone release “concludes all goals for the 8.0.0 release, and there is no outstanding work for 8.0.0 left” and “incorporates all changes from the 7.1.x branch.” More details on this release may be found in the release notes.
TornadoVM
The release of TornadoVM 2.2.0 features notable changes such as: cross-platform runtime compatibility checks added to the TornadoVM launcher scripts to detect common deployment issues; and the ability to explicitly pass CUDA JIT compiler flags using the NVIDIA cuModuleLoadDataEx() method and the TornadoOptions class. Further details on this release may be found in the release notes and this InfoQ news story on the recent release of TornadoVM 2.0.
The team has also announced that developers can get started using TornadoVM via SDKMAN.
Spring Framework
The first release candidate of Spring Shell 4.0.0 ships with dependency upgrades and support for: print annotated method result to the standard output; command completion; custom completion providers; hidden commands; command option validation via the Jakarta Validation specification; new exit status for unavailable commands; and command aliases and exception mapping. More details on this release may be found in the release notes.
Micronaut
The Micronaut Foundation has released version 4.10.5 of the Micronaut Framework, based on Micronaut Core 4.10.11, features bug fixes and a patch update to the Micronaut Data module. Further details on this release may be found in the release notes.
WildFly
The beta release of WildFly 39 provides bug fixes, dependency upgrades and new features such as: support for TLS configuration for TCP-based transport protocols; the addition of idle time-based eviction configuration for distributable HTTP sessions, stateful session beans and timers; and implementations of the Jakarta Authentication 3.1, Jakarta Concurrency 3.1, Jakarta Security 4.0, Jakarta Servlet 6.1, and Jakarta WebSocket 2.2 specifications. More details on this release may be found in the release notes.
Helidon
The release of Helidon 4.3.3 features notable changes such as: a more efficient creation of Prometheus output especially with a large number of registered metrics; and a monitor thread, created by an implementation of the Timeout interface, will now be terminated when the supplier returns to avoid wasting memory with multiple threads in the TIMED_WAITING state. Further details on this release may be found in the release notes.
Hibernate
The release of Hibernate Reactive 4.2.0.Final features: alignment with Hibernate ORM 7.2.0.Final; a refactoring of the MutinySessionImpl class to roll back a live transaction when closing the connection; and a replacement of the deprecated GitHub Action command, ::set-output, in the workflows with the preferred $GITHUB_OUTPUT environmental variable. More details on this release may be found in the release notes.
The release of Hibernate Search 8.2.0.Final delivers bug fixes, dependency upgrades and new features such as: compatibility with the Hibernate ORM 7.2.0.Final release train; and a pluggable REST client for the Elasticsearch backend making it possible to switch to a different REST client as needed. Further details on this release may be found in the release notes.
Eclipse Vert.x
Versions 5.0.6 and 4.5.23 of Eclipse Vert.x (announced here and here, respectively), primarily addresses CVE-2025-67735, a vulnerability affecting Netty versions prior to 4.1.129.Final and 4.2.8.Final, where an attacker may abuse an instance of the HttpRequestEncoder class to perform request smuggling using CRLF injection. More details on these releases may be found in the release notes for version 5.0.6 and version 4.5.23.
Kotlin
The release of Kotlin 2.3.0 features: support for JDK 25; fully-qualified names and new exception handling are now enabled by default in Kotlin/Wasm; experimental support for exporting suspend functions to JavaScript and its BigInt64Array type to represent the LongArray type in Kotlin/JavaScript; and compatibility with Gradle 9.0. Further details on this release may be found in the release notes and this what’s new page.
