JasperReport não abre no servidor

Assuntos Gerais
#1

Boa noite pessoal,

Estou com um problema em abrir um relatório que desenvolvi utilizando o JasperReport. Na minha maquina local, abre normalmente, mas quando faço o deploy para o servidor, o mesmo da o seguinte erro quando tento abrir:

java.lang.NullPointerException
java.io.File.<init>(Unknown Source)
br.com.admcw.servlet.ServletApuracao.service(ServletApuracao.java:92)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Pelo que vi, é alguma coisa relacionado a caminho, mas o meu código aparentimente está ok, pois na maquina local ele abre. Segue o meu código para abrir o relatório:

package br.com.admcw.servlet;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URL;
import java.sql.Connection;
import java.sql.Date;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.ImageIcon;

import com.lowagie.text.pdf.codec.Base64.OutputStream;
import com.sun.org.apache.xerces.internal.util.URI;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRResultSetDataSource;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.JasperRunManager;
import net.sf.jasperreports.engine.export.JRXlsExporter;
import net.sf.jasperreports.engine.export.JRXlsExporterParameter;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.view.JasperViewer;


@SuppressWarnings("serial")
public class ServletApuracao extends HttpServlet{
	
	private ServletContext sc;
	
	@Override
    public void init(ServletConfig config) throws ServletException {  
        super.init(config);  
        sc = config.getServletContext();  
    }  
	
	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp)  
	throws ServletException, IOException {  
		ResultSet rs = null; 
		String retorno = null;
		String rel = null;
		File reportFile = null;	
		File reportLogo = null;	
		
		String regini	= req.getParameter("regini");
		String regfim 	= req.getParameter("regfim");
		String pilarini	= req.getParameter("pilarini");
		String pilarfim	= req.getParameter("pilarfim");
		String faseini 	= req.getParameter("faseini");
		String fasefim 	= req.getParameter("fasefim");
		String arquivo  = req.getParameter("arquivo");
		
		ExecSql execsql = new ExecSql();  

		try {
			rs = execsql.relapuracao(regini, regfim, pilarini, pilarfim, faseini, fasefim );
		} catch (SQLException e) {
			e.printStackTrace();
		}  
		
		JRResultSetDataSource jrRS = new JRResultSetDataSource(rs);  
		
		Map parameters = new HashMap();  
		//ImageIcon gto = new ImageIcon(sc.getRealPath("WEB-INF/reports/logowcm.jpg"));  
		
		//parameters.put("logo", gto.getImage()); 
		
		parameters.put("regini", regini);
		parameters.put("regfim", regfim);
		parameters.put("pilarini", pilarini);
		parameters.put("pilarfim", pilarfim);
		parameters.put("faseini", faseini);
		parameters.put("fasefim", fasefim);
		
		reportFile = new File(sc.getRealPath("WEB-INF/reports/relapuracao.jasper"));
		
		
		//Exporta para EXCEL
		if (arquivo.equals("0")){
			
			JasperPrint impressao = null;
			try {
				impressao = JasperFillManager.fillReport( reportFile.getPath() , parameters, jrRS );
			} catch (JRException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			} 


			JRXlsExporter exporter = new JRXlsExporter(); 
			ByteArrayOutputStream xlsReport = new ByteArrayOutputStream(); 
			exporter.setParameter(JRXlsExporterParameter.JASPER_PRINT, impressao); 
			exporter.setParameter(JRXlsExporterParameter.OUTPUT_STREAM, xlsReport); 
			exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE); 
			exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE); 
			exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE); 
			exporter.setParameter(JRXlsExporterParameter.OUTPUT_FILE_NAME, "c:/temp/relapuracao.xls"); 
			exporter.setParameter(JRXlsExporterParameter.CHARACTER_ENCODING, "UTF-8");
			exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE); 

			try {
				exporter.exportReport();
			} catch (JRException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
			byte[] bytes = xlsReport.toByteArray(); 
			resp.setContentType("application/vnd.ms-excel"); 
			resp.setContentLength(bytes.length); 
			xlsReport.close(); 
			ServletOutputStream ouputStream = resp.getOutputStream(); 
			ouputStream.write(bytes, 0, bytes.length); 
			ouputStream.flush(); 
			ouputStream.close(); 
			
		}else{
			
			//Exporta para PDF
			byte[] bytes = null;			
	
			try {
				bytes = JasperRunManager.runReportToPdf(reportFile.getPath(),parameters,jrRS);
			} catch (JRException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	
			if (bytes != null && bytes.length > 0) {
				resp.setContentType("application/pdf");
				resp.setContentLength(bytes.length);
				ServletOutputStream ouputStream = resp
				.getOutputStream();
				ouputStream.write(bytes, 0, bytes.length);
				ouputStream.flush();
				ouputStream.close();
			}
		}
		
	}  
      
   @Override
    public void destroy() {  
    }  
  
}

Alguém poderia me ajudar?

Obrigado

#2