safeLevel = config.getSafeLevel();
// Construct key services
loadService = config.createLoadService(this);
posix = POSIXFactory.getPOSIX(new JRubyPOSIXHandler(this), RubyInstanceConfig.nativeEnabled);
javaSupport = new JavaSupport(this);
if (RubyInstanceConfig.POOLING_ENABLED) {
executor = new ThreadPoolExecutor(
RubyInstanceConfig.POOL_MIN,
RubyInstanceConfig.POOL_MAX,