code: public static Kernel startWithoutAgent() {
  		final Class<? extends Module> startupModule = JanusConfig.getSystemPropertyAsClass(Module.class,
  				JanusConfig.INJECTION_MODULE_NAME,
  				JanusConfig.INJECTION_MODULE_NAME_VALUE);
  		assert startupModule != null : "No platform injection module"; //$NON-NLS-1$
  		try {
  			return startWithoutAgent(startupModule.newInstance());
  		} catch (Exception exception) {
  			throw new IllegalStateException(exception);
  		}
  	}
docs: Start the SRE without an agent. This function prepare the default context.
  
  @return the context that is created by the bootstrap. If {@code null} there is no context created.
  @since 2.0.7.0