JSR 396 Reference Implementation (Java SE 21) [not for production use]
https://openjdk.org/projects/leyden
https://openjdk.org/projects/shenandoah
https://openjdk.org/projects/jdk/19 released 2022-09-20
JSR 337 Reference Implementation (Java SE 8) [not for production use]
https://openjdk.org/projects/code-tools/webrev
https://wiki.openjdk.org/display/CodeTools/JT+Harness
UI test automation library - v2
https://wiki.openjdk.org/display/CodeTools/jcov
https://openjdk.org/projects/code-tools/friday-stats
https://wiki.openjdk.org/display/CodeTools/asmtools
Repository for OpenJDK Mission Control, a production time profiling and diagnostics tools suite. https://openjdk.org/projects/jmc
JavaFX mainline development
https://openjdk.org/projects/tsan
JDK main-line development https://openjdk.org/projects/jdk
https://openjdk.org/projects/loom
https://openjdk.org/projects/portola
https://openjdk.org/projects/amber
https://openjdk.org/projects/metropolis
JSR 400 Reference Implementation (Java SE 25) [not for production use]
https://openjdk.org/projects/bsd-port
https://openjdk.org/projects/lilliput
https://openjdk.org/projects/jdk-updates
