public SimpleIoProcessorPool(Class<? extends IoProcessor<S>> processorType){
  this(processorType,null,DEFAULT_SIZE,null);
}

public SimpleIoProcessorPool ( Class < ? extends IoProcessor < S > > processorType ) { this ( processorType , null , DEFAULT_SIZE , null ) ; }
creates a new instance of simpleioprocessorpool with a default size of nbcpus + 1 .
