Open Source Document Management System | OpenKM

package asdf;

import com.openkm.api.*;

public class JarSample {
    public static void cronTask() {
        for (int i=0;i<5;i++) {
            String path = "/okm:root/fld_" + i;
            OKMFolder.getInstance().createSimple(null, path);
        }
    }

    public static void main(String[] args) {
        cronTask();
    }
}

String systemToken = DbSessionManager.getInstance().getSystemToken();
OKMFolder.getInstance().createSimple(systemToken, path);

import com.openkm.api.OKMDocument;
import com.openkm.api.OKMRepository;
import com.openkm.automation.AutomationException;
import com.openkm.bean.Document;
import com.openkm.core.AccessDeniedException;
import com.openkm.core.DatabaseException;
import com.openkm.core.FileSizeExceededException;
import com.openkm.core.ItemExistsException;
import com.openkm.core.PathNotFoundException;
import com.openkm.core.RepositoryException;
import com.openkm.core.UnsupportedMimeTypeException;
import com.openkm.core.UserQuotaExceededException;
import com.openkm.core.VirusDetectedException;
import com.openkm.extension.core.ExtensionException;
import com.openkm.module.db.stuff.DbSessionManager;
import java.awt.Desktop;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.io.*;
import java.util.*;

String fileName="";
String carpeta="C:/Users/SERVER/Desktop/documentos/";
String token = DbSessionManager.getInstance().getSystemToken();
String contractUUID = "6d64b4d3-c4ae-4fc4-9196-9416e067a1ef";
String path=OKMRepository.getInstance().getNodePath(token, contractUUID);
File folder = new File(carpeta);
File[] files = folder.listFiles();
Process p = Runtime.getRuntime().exec ("C:/tesseract/tesseract.exe C:/Users/SERVER/Desktop/documentos/plantilla.jpg C:/Users/SERVER/Desktop/documentos/plantilla.txt");

for (int i=0; i < files.length ; i++){
    if (!files[i].getName().contains("plantilla")){
        fileName = files[i].getName();
        path=path+"/"+fileName;
        Document doc = new Document();
        doc.setPath(path);
        FileInputStream fis = new FileInputStream(files[i]);
        doc = OKMDocument.getInstance().create(token, doc, fis);
        path=OKMRepository.getInstance().getNodePath(token, contractUUID);
    }
}

//doc = OKMDocument.getInstance().create(token, doc, fis);

error:
Sourced file: inline evaluation of: ``import com.openkm.api.OKMDocument; import com.openkm.api.OKMRepository; import . . . '' : target exception : at Line: 39 : in file: inline evaluation of: ``import com.openkm.api.OKMDocument; import com.openkm.api.OKMRepository; import . . . '' : .create ( token , doc , fis ) Target exception: java.lang.NullPointerException

public static String reverse(String cadena){
    String num="";
    for (int i=cadena.length()-1 ; i >= 0 ; i--)
        num=num+cadena.charAt(i);   
    return num;
}
                    
public static String getNumDocumento(List childs) {
    GWTDocument gwt = childs.get(childs.size()-1);
    String cadena=childs.get(childs.size()-1).getName();
    String num = "";

    for (int i=cadena.length()-1 ; i >= 0 ; i--) {
        if (cadena.charAt(i) == '.') {
            i--;

            for(int j=i; j>=0 ; j--) {
                if (!cadena.charAt(j) == '_')
                    num=num+cadena.charAt(j);
            }
            break;
        }
    }

    return this.reverse(num);
}