Java Runtime Environment에서 치명적인 오류가 감지되었습니다. Eclipse IDE가 Arduino와 인터페이스 할 때

Question

Eclipse IDE에서 Arduino와 인터페이스 할 때 문제가 있습니다. 나는 Arduino와 Eclipse IDE 사이의 통신 (Rxtx.jar을 설치하고 경로를 빌드 한 다음 Eclipse 작업 공간 폴더에서 serial.dll 및 parallel.dll 파일을 복사하는 등)에 필요한 모든 절차를 수행했습니다.

I ' 또한 Arduino IDE와 Eclipse 코드에서 Arduino COM 포트 구성을 확인했습니다.

하지만 여전히 Eclipse 콘솔에서 이러한 종류의 메시지가 표시됩니다.

---

WARNING: RXTX Version mismatch 
    Jar version = RXTX-2.2pre1 
    native lib Version = RXTX-2.2pre2 
Started 
# 
# A fatal error has been detected by the Java Runtime Environment: 
# 
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000180003990, pid=7556, tid=4696 
# 
# JRE version: Java(TM) SE Runtime Environment (9.0+11) (build 9.0.1+11) 
# Java VM: Java HotSpot(TM) 64-Bit Server VM (9.0.1+11, mixed mode, tiered, compressed oops, g1 gc, windows-amd64) 
# Problematic frame: 
# C [rxtxSerial.dll+0x3990] 
# 
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows 
# 
# An error report file with more information is saved as: 
# D:\Educational\Study\Softwares\JAVA\Eclipse EE Oxygen for Web Devlopers\workspace\RxTxDemo\hs_err_pid7556.log 
# 
# If you would like to submit a bug report, please visit: 
# http://bugreport.java.com/bugreport/crash.jsp 
# The crash happened outside the Java Virtual Machine in native code. 
# See problematic frame for where to report the bug. 
# 

---

다음과 같이

내 이클립스 IDE 자바 코드는 다음과 같습니다 이 (내 아두 이노 포트가 COM5 및 Windows 10 64 비트를 사용.)

import java.io.BufferedReader; 
import java.io.InputStreamReader; 
import java.io.OutputStream; 
import gnu.io.CommPortIdentifier; 
import gnu.io.SerialPort; 
import gnu.io.SerialPortEvent; 
import gnu.io.SerialPortEventListener; 
import java.util.Enumeration; 


public class SerialTest implements SerialPortEventListener { 
    SerialPort serialPort; 
     /** The port we're normally going to use. */ 
    private static final String PORT_NAMES[] = { 
      "/dev/tty.usbserial-A9007UX1", // Mac OS X 
         "/dev/ttyACM0", // Raspberry Pi 
      "/dev/ttyUSB0", // Linux 
      "COM5", // Windows 
    }; 
    /** 
    * A BufferedReader which will be fed by a InputStreamReader 
    * converting the bytes into characters 
    * making the displayed results codepage independent 
    */ 
    private BufferedReader input; 
    /** The output stream to the port */ 
    private OutputStream output; 
    /** Milliseconds to block while waiting for port open */ 
    private static final int TIME_OUT = 2000; 
    /** Default bits per second for COM port. */ 
    private static final int DATA_RATE = 9600; 

    public void initialize() { 
       // the next line is for Raspberry Pi and 
       // gets us into the while loop and was suggested here was suggested http://www.raspberrypi.org/phpBB3/viewtopic.php?f=81&t=32186 
       // System.setProperty("gnu.io.rxtx.SerialPorts", "/dev/ttyACM0"); 

     CommPortIdentifier portId = null; 
     Enumeration portEnum = CommPortIdentifier.getPortIdentifiers(); 

     //First, Find an instance of serial port as set in PORT_NAMES. 
     while (portEnum.hasMoreElements()) { 
      CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement(); 
      for (String portName : PORT_NAMES) { 
       if (currPortId.getName().equals(portName)) { 
        portId = currPortId; 
        break; 
       } 
      } 
     } 
     if (portId == null) { 
      System.out.println("Could not find COM port."); 
      return; 
     } 

     try { 
      // open serial port, and use class name for the appName. 
      serialPort = (SerialPort) portId.open(this.getClass().getName(), 
        TIME_OUT); 

      // set port parameters 
      serialPort.setSerialPortParams(DATA_RATE, 
        SerialPort.DATABITS_8, 
        SerialPort.STOPBITS_1, 
        SerialPort.PARITY_NONE); 

      // open the streams 
      input = new BufferedReader(new InputStreamReader(serialPort.getInputStream())); 
      output = serialPort.getOutputStream(); 

      // add event listeners 
      serialPort.addEventListener(this); 
      serialPort.notifyOnDataAvailable(true); 
     } catch (Exception e) { 
      System.err.println(e.toString()); 
     } 
    } 

    /** 
    * This should be called when you stop using the port. 
    * This will prevent port locking on platforms like Linux. 
    */ 
    public synchronized void close() { 
     if (serialPort != null) { 
      serialPort.removeEventListener(); 
      serialPort.close(); 
     } 
    } 

    /** 
    * Handle an event on the serial port. Read the data and print it. 
    */ 
    public synchronized void serialEvent(SerialPortEvent oEvent) { 
     if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) { 
      try { 
       String inputLine=input.readLine(); 
       System.out.println(inputLine); 
      } catch (Exception e) { 
       System.err.println(e.toString()); 
      } 
     } 
     // Ignore all the other eventTypes, but you should consider the other ones. 
    } 

    public static void main(String[] args) throws Exception { 
     SerialTest main = new SerialTest(); 
     main.initialize(); 
     Thread t=new Thread() { 
      public void run() { 
       //the following line will keep this app alive for 1000 seconds, 
       //waiting for events to occur and responding to them (printing incoming messages to console). 
       try {Thread.sleep(1000000);} catch (InterruptedException ie) {} 
      } 
     }; 
     t.start(); 
     System.out.println("Started"); 
    } 

---

그리고 내 간단한 Arduino 코드는 다음과 같습니다.

void setup(){ 
    Serial.begin(9600); 
} 

void loop(){ 
    Serial.println("Hello world"); 
    delay(1000); 
} 

이 문제를 해결할 수있는 제안을 보내주십시오.

감사합니다.

Answer 1

Java 9에서 동일한 문제가 있으며 Java 8로 다시 변경하면 작동합니다. 또 다른 해결책은 http://fazecast.github.io/jSerialComm/을 사용하십시오 ...