private Ruby(RubyInstanceConfig config) {
this.config = config;
this.threadService = new ThreadService(this);
if( config.isProfiling() ) {
this.profiledMethods = new ProfiledMethods(this);
this.profilingServiceLookup = new ProfilingServiceLookup(this);
} else {
this.profiledMethods = null;
this.profilingServiceLookup = null;
}