我正在使用epson_javapos_adk_11414_for_linux_x64安装带有PC的javapos（ sh installJavaPOSFull-64.sh )
我在不同的shell中一个接一个地运行这个程序，第二个进程由于某种原因崩溃：

import jpos.JposException;
import jpos.POSPrinter;
import jpos.util.JposPropertiesConst;

import java.time.Duration;
import java.time.Instant;

public class POSPrinterClaimTest {
  static POSPrinter posPrinter;

  private static Boolean isOpen = false;
  private static Boolean isClaimed = false;
  private static Boolean isEnabled = false;

  static {
    System.setProperty(
        JposPropertiesConst.JPOS_POPULATOR_FILE_PROP_NAME, "jpos.xml");
  }

  public static void main(String[] args) {
    try {
      posPrinter = new POSPrinter();
      Instant start = Instant.now();
      Instant finish = null;
      Long timeElapsed = null;
      openConnection("POSPrinter1");
      finish = Instant.now();
      timeElapsed = Duration.between(start, finish).toMillis();
      System.out.println("Time taken to connect : " + timeElapsed.toString());
      Thread.sleep(100000L);
      terminate();
      System.out.println("terminated from try block");
    } catch (JposException | InterruptedException e) {
      e.printStackTrace();
      try {
        terminate();
        System.out.println("terminated from catch block");
        Thread.sleep(5000);
      } catch (JposException | InterruptedException jposException) {
        jposException.printStackTrace();
      }
    } catch(Throwable t){
      t.printStackTrace();
    } finally {
      posPrinter = null;
    }
  }

  private static void openConnection(String printerName) throws JposException {
    try {

      String printerNamesss = printerName;
      /**
       * open the printer object according to the device logical name defined in jpos.xml
       */
      posPrinter.open(printerName);
      isOpen = true;
      System.out.println("opened");
      /**
       * Get the exclusive control right for the opened device.
       * Then the device is disable from other application.
       * */
      posPrinter.claim(3000);
      isClaimed = true;
      System.out.println("claimed");
      /**
       *  enable the device for input and output
       */
      posPrinter.setDeviceEnabled(true);
      isEnabled = true;
      System.out.println("enabled");

    } catch (JposException jposException) {
      System.out.println("jpos exception in open : " + jposException.getMessage());
      throw jposException;
    } catch(Throwable t) {
      System.out.println("unknown throwable open: " + t.getMessage());
    }
  }

  public static void terminate() throws JposException {
    try {
        if(isOpen && isClaimed) {
          posPrinter.clearOutput();
          System.out.println("cleared output");
        }

        if(isEnabled) {
          posPrinter.setDeviceEnabled(false);
          isEnabled = false;
          System.out.println("setDeviceEnabled false");
        }

        if(isClaimed) {
          posPrinter.release();
          isClaimed = false;
          System.out.println("released");
        }

        if(isOpen) {
          posPrinter.close();
          isOpen = false;
          System.out.println("closed");
        }
    } catch (JposException jposException) {
      jposException.printStackTrace();
      throw jposException;
    } catch(Throwable t) {
      System.out.println("unknown throwable terminate: " + t.getMessage());
    }
  }
}

第一过程输出

opened
claimed
enabled
Time taken to connect : 7928 --> now I start the second process.
cleared output
setDeviceEnabled false
released
closed
terminated from try block

第二过程输出

opened
jpos exception in open : The port is already open.
jpos.JposException: The port is already open.
    at jp.co.epson.upos.core.v1_14_0001.pntr.CommonUPOSExceptionCreator.createJposException(CommonUPOSExceptionCreator.java:138)
    at jp.co.epson.upos.core.v1_14_0001.pntr.CommonUPOSExceptionCreator.createJposException(CommonUPOSExceptionCreator.java:99)
    at jp.co.epson.upos.core.v1_14_0001.pntr.CommonPrinterService.openPort(CommonPrinterService.java:3341)
    at jp.co.epson.upos.core.v1_14_0001.pntr.CommonPrinterService.claim(CommonPrinterService.java:3103)
    at jpos.BaseJposControl.claim(Unknown Source)
    at POSPrinterClaimTestThreads.openConnection(POSPrinterClaimTestThreads.java:73)
    at POSPrinterClaimTestThreads.test(POSPrinterClaimTestThreads.java:36)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
closed
terminated from catch block

# 

# A fatal error has been detected by the Java Runtime Environment:

# 

# SIGSEGV (0xb) at pc=0x00007f43880ea9df, pid=12119, tid=0x00007f43690b0700

# 

# JRE version: OpenJDK Runtime Environment (8.0_252-b09) (build 1.8.0_252-b09)

# Java VM: OpenJDK 64-Bit Server VM (25.252-b09 mixed mode linux-amd64 compressed oops)

# Problematic frame:

# C  [libethernetio31.so+0x1f9df]  CCommonPort::PortEvent(unsigned int, unsigned int, unsigned int*, unsigned int, unsigned char*)+0xf

# 

# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again

# 

# An error report file with more information is saved as:

# /POSPrinterTest/JavaPOS/hs_err_pid12119.log

# 

# If you would like to submit a bug report, please visit:

# http://bugreport.java.com/bugreport/crash.jsp

# 

Aborted

如果您看到第二个进程抛出一个jposexception，然后它启动catch并关闭连接。然后它突然崩溃而不是睡5秒。
有什么帮助吗？