icedtea-7-jre-jamvm 7u171-2.6.13-0ubuntu0.14.04.2 (i386 binary) in ubuntu trusty

 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.