semeru-jdk-open@11 ☆
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Description:
Production-ready JDK with the OpenJDK class libraries and the Eclipse OpenJ9 JVM
Type: Cask  |  Latest Version: 11.0.30+7,openj9-0.57.0@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: java jdk openj9 semeru ibm lts
Install: brew install --cask semeru-jdk-open@11
About:
IBM Semeru Runtime is a production-ready OpenJDK distribution that bundles the high-performance Eclipse OpenJ9 JVM. It delivers faster startup times and lower memory footprints compared to standard HotSpot JVMs. This package provides the JDK 11 (LTS) edition, optimized for enterprise cloud workloads.
Key Features:
  • Eclipse OpenJ9 JVM for low memory footprint
  • High throughput and fast application startup
  • Long-term support (LTS) stability for JDK 11
  • Fully compatible with standard Java APIs
Use Cases:
  • Running enterprise Java applications in containerized environments
  • Developing applications requiring stable LTS Java versions
  • Microservices requiring fast startup times and low resource usage
Alternatives:
  • openjdk – Standard OpenJDK uses HotSpot VM; Semeru uses OpenJ9 for better memory efficiency.
  • oracle-jdk – Oracle JDK requires a commercial license for some uses; Semeru is fully open source (GPL+CE).
Version History
Detected Version Rev Change Commit
Jan 30, 2026 5:01am 11.0.30+7,openj9-0.57.0 0 VERSION_BUMP d083bf2f
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