java.lang.NoClassDefFoundError: net/sourceforge/tess4j/TesseractException

Question

I try to do an ocr application for Mirth with Java and Tesseract.I export the project in jar file and call in Mirth with Javascript that did a hello world application.I believe that I add the jar files right way.However I have a problem in Java OCR,so I get this error,

ERROR (com.mirth.connect.connectors.js.JavaScriptDispatcher:193): Error evaluating JavaScript Writer (JavaScript Writer "RTF>DCM" on channel b469e5af-a78d-41ca-86a0-a7b507799a4d). java.lang.NoClassDefFoundError: net/sourceforge/tess4j/TesseractException

Project Screenshot

package com.imagerad.ocr;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

import net.sourceforge.tess4j.ITesseract;
import net.sourceforge.tess4j.Tesseract;
import net.sourceforge.tess4j.TesseractException;

public class JavaOCRTest {
static String Tc;
static String phone;
static String date;

public static void main(String[] args) throws IOException{

}

public String returnText(String fileName) throws IOException{


    Files.walk(Paths.get(fileName)).forEach(filePath -> {
        if (Files.isRegularFile(filePath)) {
            File imageFile = filePath.toFile();

            ITesseract instance = new Tesseract();

            try {
                String result = instance.doOCR(imageFile);

                int i=result.indexOf("Numarasn: ");
                int j=result.indexOf("Tel No:");
                int k=result.indexOf("Bilgllendirme Tarihl:");

                Tc = result.substring(i+10, i+22);
                phone = result.substring(j+8,j+23);
                date = result.substring(k+22,k+32);


            } catch (TesseractException e) {
                System.err.println(e.getMessage());
            }
        }
    });
    return Tc+""+phone+""+date;
}

public String returnTC() throws IOException{
    return Tc;
}

public String returnPhone() throws IOException{
    return phone;
}

public String returnDate() throws IOException{
    return date;
}
}

Thank you so much for your helps.

It's a class not found exception, so double check the path to the jars in question and that the jar files actually have the classes you think they should have (use `unzip -l file.jar`). — Robert, Sep 03 '16 at 15:01
Thank you @Robert.I solved my problems.You can see all answers [this](http://stackoverflow.com/a/39201494/5459257) — Nevzat Günay, Sep 08 '16 at 08:28

score 3 · Accepted Answer · answered Aug 19 '16 at 08:15

3

You have to download the Tess4J.jar and add it to the classpath. This jar contains the missing class net/sourceforge/tess4j/TesseractException

answered Aug 19 '16 at 08:15

Jens

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How can i add it this classpath?Maybe i did it before. – Nevzat Günay Aug 19 '16 at 08:19
How you run the class? – Jens Aug 19 '16 at 08:20
I already added the jar files for Tess4J via Java Build Path -> Libraries -> Add External JARs.Also the project runs in local. – Nevzat Günay Aug 19 '16 at 08:24

java.lang.NoClassDefFoundError: net/sourceforge/tess4j/TesseractException

1 Answers1