package example;

/*
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
import java.io.File;
import onlineconverter.OnlineConvert;

public class Demo {

    /**
     * @param args the command line arguments
     * @throws java.lang.Exception
     */
    public static void main(String[] args) throws Exception {
        
        File file = new File("example/spjobs.jpg");
        String filePath = file.getAbsolutePath();

        OnlineConvert oc = OnlineConvert.create("ENTER YOUR APIKEY HERE", true);
        System.out.println("Inserting job in server...\n\n");
        System.out.println(oc.convert("convert-to-jpg", OnlineConvert.SOURCE_TYPE_FILE_PATH, filePath , "spjobs.png", null, ""));
        System.out.println("\n\nJob Inserted in server...\n\n\n\n");

        System.out.println("Getting inserted job status on server...\n\n");
        System.out.println(oc.getProgress());
        System.out.println("\n\nStatus of inserted job on server is above...\n\n\n\n");

        System.out.println("===================================================\n");
        System.out.println("HASH :-" + oc.getHash());
        System.out.println("Download URL  :- " + oc.getDownloadUrl());
        System.out.println("===================================================\n\n");

        System.out.println("\n\nNow deleting the file  from server...\n\n");
        System.out.println(oc.deleteFile());
        System.out.println("The file has been deleted from server...\n\n\n\n");

    }

}

package example;

/*
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
import java.io.File;
import onlineconverter.OnlineConvert;

public class Demo {

    /**
     * @param args the command line arguments
     * @throws java.lang.Exception
     */
    public static void main(String[] args) throws Exception {
        
        File file = new File("example/spjobs.jpg");
        String filePath = file.getAbsolutePath();

        OnlineConvert oc = OnlineConvert.create("ENTER YOUR APIKEY HERE", true);
        System.out.println("Inserting job in server...\n\n");
        System.out.println(oc.convert("convert-to-png", OnlineConvert.SOURCE_TYPE_FILE_PATH, filePath , "spjobs.jpg", null, ""));
        System.out.println("\n\nJob Inserted in server...\n\n\n\n");

        System.out.println("Getting inserted job status on server...\n\n");
        System.out.println(oc.getProgress());
        System.out.println("\n\nStatus of inserted job on server is above...\n\n\n\n");

        System.out.println("===================================================\n");
        System.out.println("HASH :-" + oc.getHash());
        System.out.println("Download URL  :- " + oc.getDownloadUrl());
        System.out.println("===================================================\n\n");

        System.out.println("\n\nNow deleting the file  from server...\n\n");
        System.out.println(oc.deleteFile());
        System.out.println("The file has been deleted from server...\n\n\n\n");

    }

}

Update Demo.java