Well, probably not. Our JVM features a VERY high performance JIT that has been shown in multiple studies to be as good or better than most compilers.
But that's not the issue. The issue is that TowerJ WON'T WORK.
J2EE App Servers don't work with Compilers in general, and in particular, WebSphere doesn't work with any other JVM or Compiler. You can't use it.
Kyle