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SapMachine vs IBM Semeru Runtime Open Edition: catalog facts
SapMachine	IBM Semeru Runtime Open Edition
Best for: Developers and teams who want a free, vendor-supported Java runtime	Best for: Java developers wanting an OpenJ9-based OpenJDK build
Free Free to use in development and production, with no licensing fees or subscriptions.	Free Free to download, with optional paid enterprise support from IBM.
Windows, macOS, Linux	macOS, Command line
Java SE certified and close to upstream OpenJDK Long-term support releases maintained by SAP All 3 strengths for SapMachine Java SE certified and close to upstream OpenJDK Long-term support releases maintained by SAP Covers macOS, Windows, Linux and AIX	Uses the Eclipse OpenJ9 JVM instead of HotSpot Drop-in replacement for other OpenJDK builds All 3 strengths for IBM Semeru Runtime Open Edition Uses the Eclipse OpenJ9 JVM instead of HotSpot Drop-in replacement for other OpenJDK builds Free binaries with optional commercial support
Few differences from other OpenJDK builds beyond the maintainer	Only useful to people running or developing Java software OpenJ9 tuning options differ from HotSpot
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-with-classpath-exception	License not stated
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for SapMachine sapmachine.io Catalog checked October 1, 2026	Official website Full listing and sources Sources for IBM Semeru Runtime Open Edition developer.ibm.com/languages/semeru-runtimes Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.