Bernard Traversat

VP Engineering, Java SE Platform, Oracle. "The statements and opinions expressed here are my own and do not necessarily represent those of Oracle Corp.”

[Bernard Traversat @BTraTra]

Project Babylon/HAT brings GPU acceleration to Java: LLM inference in Java, kernels approaching native performance. A major step toward a JVM that dynamically targets CPUs and GPUs efficiently without writing kernels in CUDA/OpenCL. https://t.co/sK79NKdqrW

[Bernard Traversat @BTraTra]

Building Project Valhalla is like building a cathedral: craftsmanship, ingenuity, and collective dedication. A single “value” keyword carrying a decade of engineering. The first preview in JDK 28 as a milestone, with more work ahead. Kudos to the team!
https://t.co/VtOaBrfj9E

[Bernard Traversat @BTraTra]

Virtual threads, structured concurrency, and scoped values simplify Enterprise AI agent orchestration—enabling scalable concurrent calls to models, tools, and services with clearer task lifetimes, cancellation, context propagation, and observability.
https://t.co/ZQuDUM3iI0
#AI

[Bernard Traversat @BTraTra]

Java—The Year of the Runtime! As AI accelerates coding, the JVM matters more than ever: compatibility, integrity, JIT compilation, performance, memory management, and JFR telemetry. AI Enterprise software will remain secure, robust, efficient on the JVM.
https://t.co/QA1IwnMaxp

[LangChain4j @langchain4j]

#LangChain4j 1.22.0 is out!

Highlights:
- OpenAI Decisions API support
- AWS Bedrock batch inference
- Automatic prompt caching for Anthropic

Thanks to all contributors!

https://t.co/F5xJMyC4HB

[Bernard Traversat @BTraTra]

Leyden AOT is taking center stage at Devoxx BE! No code changes—just blazing-fast startup, fast warmup to peak performance, and the C2 JIT continuing to push performance to the ultimate limit :-)

https://t.co/Nj6uxM8Ssf

"Java for the AI world"

[Bernard Traversat @BTraTra]

Oracle’s Java extension for VS Code 27.0.0 is here! 7.2M downloads and counting. New NetBeans 31, full JDK 27 support, lambda breakpoints, Java notebook fixes, and dependency updates.
https://t.co/lFJAvJQPUy
#java #VSCode

[Bernard Traversat @BTraTra]

JDK 28 FFM allocations will be much faster: Arena.ofConfined() can reuse native-memory pools without source changes while preserving lifetime, confinement, and zero-initialization guarantees. Early microbenchmarks show up to 18x improvements!
https://t.co/3CMa8qQ593
#java #FFM

[Bernard Traversat @BTraTra]

Helidon combines Java virtual threads for a simple request-per-thread model and compile-time generated APIs with LangChain4j integration for models, tools, workflows. A fast, robust, secure and cost-efficient foundation for Enterprise agentic AI at scale.
https://t.co/JlRu1UJZ48

[Bernard Traversat @BTraTra]

This was made for the JVM 😋
“Java for the AI world”

[Bernard Traversat @BTraTra]

@hpotts_essex TLS 1.3 & PQC …

[Bernard Traversat @BTraTra]

JDK 27 strengthens Java security with TLS 1.3 post-quantum hybrid key exchange, a refined PEM API, faster cryptography, updated trust controls, TLS certificate compression, and runtime security-property visibility via jcmd. https://t.co/KHQO8sSeOu
#java #PQC

[Bernard Traversat @BTraTra]

JDK 27 delivers performance gains from 2,300+ commits: Compact Object Headers on by default, faster HashMap copies, text and URL improvements, crypto intrinsics, vectorization, GC fixes and more :-) https://t.co/6y9ea4oowI
"Java for the AI world"

[Bernard Traversat @BTraTra]

A Deep Dive into SPECjbb2015 MultiJVM Mode and Tail Latency!
https://t.co/ROZ4263Ug2
"Java for the AI world"
#java #JVM #GC #SPECJBB

[Bernard Traversat @BTraTra]

JEP 546, Adaptive Heap Sizing for ZGC, is now a Candidate! ZGC will adapt heap size to application demand and available host CPU/memory—reducing manual tuning while balancing throughput, latency, GC CPU, and neighboring workloads. https://t.co/kulAi2v1VM
#Java #ZGC

[Bernard Traversat @BTraTra]

Helidon 27 is the first release under JDK "Tip-and-Tail" model—bringing the latest Helidon capabilities on the latest JDK 27. It adds full Declarative APIs, MCP, LangChain4j, JDBC, and Scoped Values support for virtual threads.
https://t.co/U0xaAjdxj9

[Bernard Traversat @BTraTra]

JEP 545, Faster Startup and Warmup with ZGC, is now a Candidate! Complementing Leyden AOT, ZGC reduces the trade-off between fast startup with a small initial heap and smoother performance with a large, pre-touched heap😀
https://t.co/33iaw0EJil
#java #ZGC

[Bernard Traversat @BTraTra]

JavaFX 27 is now available! Metal is the default rendering pipeline on macOS, with rich-text and accessibility improvements. Build enterprise desktop experiences for the AI world, where people can review AI insights, resolve exceptions, and stay in control https://t.co/CBGM0h5vym

[Bernard Traversat @BTraTra]

Java 27 available now! 9 JEPs improve productivity, performance, memory footprint, serviceability, and post-quantum TLS. With ~2,300 enhancements and fixes, it strengthens Java for the Enterprise AI agentic world :-) https://t.co/SbqsAmWb5f

[Bernard Traversat @BTraTra]

JEP 544 is now Candidate! A major milestone for Project Leyden and the C2 JIT compiler, it speeds startup and warmup by moving compilation into a training run while preserving C2’s dynamic optimization and peak performance 🙂
https://t.co/xgVK8N0U6s