How to call Java Class/Method from CF

[bozzpaw]

I have the class file below that will get a PDF file and converts into 64 bit format.

package com.washgas.kubra.client;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.xml.rpc.ServiceException;

import org.apache.xerces.impl.dv.util.Base64;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.DocumentHelper;

import com.washgas.KubraBillPrintProxy;
import com.washgas.KubraBillPrintProxyProxy;
import com.washgas.KubraBillPrintProxyServiceLocator;

public class KubraAPI {

	/**
	 * @param args
	 */
	private static KubraBillPrintProxyServiceLocator locator;
	private static KubraBillPrintProxy soap;
	private static String ADDRESS = "http://wgdevaix21.dev.washgas:9080/WSKubraProxy/services/KubraBillPrintProxy";
	
	public static void main(String[] args) 
	{
		/*
		<?xml version="1.0" encoding="UTF-8"?>
		<BILLPrint><account>0063062087</account><startdate/><enddate/><billsource/></BILLPrint>
		
		 Document document = DocumentHelper.createDocument();
		 Element root = document.addElement( "BILLPrint" );
		 root.addElement("account").addText("0063062087");
		 root.addElement("startdate");
		 root.addElement("enddate");
		 root.addElement("billsource");
		 
		 System.out.println(document.asXML());
		 	*/	
		    
		String filename = KubraAPI.getPDFFileName("0063062087", null, null, null,null);
		System.out.println("File name: " + filename);
	}
	
	public static String getPDFFileName(String account, Date startdate, Date enddate, String source, String filename)
	{
		if (filename == null)
		filename = "C:/mockpdf.pdf";
		try {
			byte[] array = getPDFBytesArray(account, startdate, enddate, source);
			
			FileOutputStream fos1 = new FileOutputStream(filename);
			int len = array.length;
			System.out.println(new String(array));
			fos1.write(array);
			fos1.flush();
			fos1.close();
		} 
		catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return filename;
	}
	public static byte[] getPDFBytesArray(String account, Date startdate, Date enddate, String source) 
	{
		byte[] array = null;
		String strstartdate = null;
		String strenddate   = null;
		
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
		
		if (startdate != null)
			strstartdate = formatter.format(startdate);
		if (enddate != null)
			strenddate = formatter.format(enddate);
		
		try 
		{
			//String datemft = formatter.format(date);
			
			 Document document = DocumentHelper.createDocument();
			 Element root = document.addElement( "BILLPrint" );
			 root.addElement("account").addText(account == null?"":account);
			 root.addElement("startdate").addText(strstartdate == null?"":strstartdate);
			 root.addElement("enddate").addText(strenddate == null?"":strstartdate);
			 root.addElement("billsource").addText(source == null?"":source);
			
			locator = new KubraBillPrintProxyServiceLocator();
			soap = locator.getKubraBillPrintProxy(new URL(ADDRESS)); // from configuration
			
			
			String base64 =  soap.getKubraPDF(document.asXML());
			array = base64Decode(base64);
			FileOutputStream fos1 = new FileOutputStream("C:/Kubra/mockpdf.pdf");
			int len = array.length;
			System.out.println(new String(array));
			fos1.write(array);
			fos1.flush();
			fos1.close();
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
		return array;
	}
	private static byte[] base64Decode(String base64) 
	{
		return Base64.decode(base64);
	}
	private static String base64Encode(byte[] array) 
	{
		return Base64.encode(array);
	}

}

I need to call this getPDFFile method and set the result in a variable from my coldfusion. I am using the code below but receiving a null null error. I am having difficulties as my site is not telling me where the null error is. Any help will greatly appreciated.

<!--- create an object based on the EAI Kubra Web Service class  --->
<cfset myObject = createObject( "java", "com.washgas.kubra.client.KubraAPI" )>
 
<!--- call the getPDFFileName method and store the result in a variable. --->
<cfset result = myObject.getPDFFileName("0063062087", "20130808", "20130808", "null", "C:\test.pdf")>