JavaPOS Installation not compatible with Windows 10, therefore I need to write my own jpos.xml file. Which files to include?
<p>Ive been researching the ins and outs of javaPOS, JCL, JDK, paths and classpaths for a while now trying to figure out how i can successfully print a line on my Epson TM-T20 Receipt printer using JavaPOS.
Since the javaPOS installation from the disc (that came with the printer) will not install correctly on Windows 10 (thinks its installing on Linux), I need to create my own jpos.xml file. It needs to contain device entries for my printer. (I have also tried a fresh JavaPOS ADK download from Epson and also an older version without success).</p>

<p>This is my setup so far.... </p>

<ol>
<li>I have extracted the latest JCL. Instead of setting classpath to JCL binary files (jar files), Ive placed them in the java ext directory. </li>
<li>I extracted the Java "src.zip" located in JDK1.8.0_74 into the JDK1.8.0_74 directory as "src". </li>
<li>I have placed the "jpos" folder containing all the jpos source files into that "src" folder, so I can easily import them into my test application.</li>
<li>I have studied other jpos.xml (including POSTest/2 &amp; Starmicronics eg.) to get an idea of what entries mine needs to contain.</li>
<li>Ive placed my jpos.xml in the Java "src" folder.</li>
</ol>

<p>Here is my jpos.xml....</p>

<pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!DOCTYPE JposEntries PUBLIC "-//JavaPOS//DTD//EN"

"jpos/res/jcl.dtd"&gt;

&lt;JposEntries&gt;
&lt;!--Saved by JavaPOS jpos.config/loader (JCL) version 2.3.0-RC3 on 6/03/16 1:20 PM--&gt;

&lt;JposEntry logicalName="TM-T20"&gt;

&lt;creation factoryClass="jpos.loader.JposServiceInstanceFactory" serviceClass="jpos.services.POSPrinterService114"/&gt;
&lt;vendor name="Seiko Epson" url="http://www.Epson.com"/&gt;

&lt;jpos category="POSPrinter" version="1.14"/&gt;

&lt;product description="Epson Thermal Receipt Printer TM-T20" name="TM-T20" url="http://www.Epson.com"/&gt;


&lt;!--Other non JavaPOS required property (mostly vendor properties and bus specific properties i.e. RS232 )--&gt;

&lt;prop name="deviceBus" type="String" value="USB"/&gt;
&lt;prop name="portName" type="String" value="ESDPRT001"/&gt;

&lt;prop name="model" type="String" value="TM-T20"/&gt;
&lt;/JposEntry&gt;


 &lt;/JposEntries&gt;
</code></pre>

<p>Here is my test application...</p>

<pre><code>import java.awt.Dimension;
import java.awt.Toolkit;
import javax.swing.UIManager;
import jpos.util.JposPropertiesConst;



public class ReceiptPrintMain {


public ReceiptPrintMain() {

    ReceiptPrint2 frame = new ReceiptPrint2();

    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();
    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
    frame.setVisible(true);
}

public static void main(String[] args) {
    System.setProperty(JposPropertiesConst.JPOS_POPULATOR_FILE_PROP_NAME, "C:\\Program Files (x86)\\Java\\jdk1.8.0_74\\src\\jpos.xml");
    try {
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch(Exception e) {
        e.printStackTrace();
    }
    new ReceiptPrintMain();
}
}

// File: ReceiptPrint2
// Purpose:

import java.awt.AWTEvent;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.TitledBorder;
import jpos.JposException;
import jpos.POSPrinter;
import jpos.POSPrinterConst;



public class ReceiptPrint2 extends JFrame {   


POSPrinter ptr = new POSPrinter();
JPanel contentPane;
JPanel jPanel_reciept = new JPanel();
TitledBorder titledBorder1;
GridBagLayout gridBagLayout1 = new GridBagLayout();
GridBagLayout gridBagLayout2 = new GridBagLayout();
JButton jButton_Print = new JButton();


public ReceiptPrint2() {

    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
        jbInit();
    }
    catch(Exception e) {
        e.printStackTrace();
    }
}

private void jbInit() throws Exception  {

    contentPane = (JPanel) this.getContentPane();
    titledBorder1 = new TitledBorder(BorderFactory.createEtchedBorder(Color.white,new Color(134, 134, 134)),"Receipt");
    contentPane.setLayout(gridBagLayout1);
    this.setSize(new Dimension(300, 180));
    this.setTitle("Step 1  Print \"Hello JavaPOS\"");
    jPanel_reciept.setLayout(gridBagLayout2);
    jPanel_reciept.setBorder(titledBorder1);
    jButton_Print.setText("Print");
    jButton_Print.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
                jButton_Print_actionPerformed(e);
        }
    });
    contentPane.add(jPanel_reciept, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
                    ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(15, 0, 0, 0), 20, 20));
    jPanel_reciept.add(jButton_Print, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
                    ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(5, 10, 5, 10), 130, 0));
}   

protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            this.closing();
    }

    else if (e.getID() == WindowEvent.WINDOW_OPENED) {

        try {
            ptr.open("TM-T20");

            ptr.claim(1000);

            ptr.setDeviceEnabled(true);
        }
        catch(JposException ex) {
            JOptionPane.showMessageDialog(null, ex.getMessage());
        }
    }
}

void jButton_Print_actionPerformed(ActionEvent e) {     
    try{                
        ptr.printNormal(POSPrinterConst.PTR_S_RECEIPT,"Hello JavaPOS\n");
    }
    catch(JposException ex){
       JOptionPane.showMessageDialog(null, ex.getMessage());
    }       
}

void closing(){     
    try{            
        ptr.setDeviceEnabled(false);

        ptr.release();

        ptr.close();
    }
    catch(JposException ex){
    }        
    System.exit(0);
}    
}
</code></pre>

<p>The error message I get is....
"Could not connect to service with logicalName = TM-T20: Exception.message = jpos.loader.jpos.ServiceInstanceFactory.init()"</p>

<p>I'm guessing my jpos.xml file entries are incorrect, mainly factoryClass &amp;/or serviceClass.
 Please can anyone help me.
Perhaps someone has the jpos.xml file created for the TM-T20 and wouldn't mind sharing.</p>