icedtea-6-jre-jamvm 6b24-1.11.4-3ubuntu1 (i386 binary) in ubuntu raring

 The package provides an alternative runtime using the JamVM. This is a
 somewhat faster alternative than the Zero port on architectures like armel,
 mips, mipsel, powerpc.
 .
 The VM is started with the option `-jamvm'. See the README.Debian for details.