Paketit, jotka toteuttavat paketin java1-runtime
- gij
- The GNU Java bytecode interpreter
- jamvm
- virtual machine which conforms to JVM specification 2
- java-gcj-compat
- Java runtime environment using GIJ
- kaffe-jthreads
- A green threads enabled version of the Kaffe VM
- kaffe-pthreads
- A POSIX threads enabled version of the Kaffe VM
- sablevm
- Free implementation of Java Virtual Machine (JVM) second edition
