jasper report

[mischa01]

@RequestMapping(value = "/ImprimirContrato", method = RequestMethod.GET)
public String Imprimir(HttpServletRequest req){
String mReturn="ContratoIngreso";

List<Contrato> mContratos = Contrato.findContratoEntries(0, 1);

String mNombre = "miSCha";
HttpServletRequestWrapper srw = new HttpServletRequestWrapper(req);
String path = srw.getRealPath("") + "\\WEB-INF\\views\\MntContrato\\Reportes\\Arrendamiento_C ontrato.jrxml";
// String path = srw.getRealPath("") + "\\WEB-INF\\views\\MntContrato\\Reportes\\Arrendamiento_C ontrato.jasper";
// String path = "D:\\miSCha\\Jasper\\Arrendamiento_Contrato.jrxml" ;

Map<String, String> mParametros = new HashMap<String, String>();
//mParametros.put("Nombre", mNombre);
System.out.println("3");
JRBeanCollectionDataSource ds = new JRBeanCollectionDataSource(mContratos);
System.out.println("4 DS = >" + ds.getRecordCount());
JasperReport report =null ;
JasperPrint jasperPrint=null ;
try {
// File reportFile = new File(path);
// System.out.println("ruta => "+ reportFile.getPath());

//report=(JasperReport) JRLoader.loadObject(reportFile.getPath());
report = JasperCompileManager.compileReport(path);


jasperPrint = JasperFillManager.fillReport (report,mParametros,ds);

} catch (JRException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}


JasperViewer jviewer = new JasperViewer(jasperPrint,false);
//jviewer.setTitle("Reporte de Contrato");

jviewer.setVisible(true);
return "redirect:/"+mReturn;
}

Me sale el siguiente error ... a la hora de compilar report = JasperCompileManager.compileReport(path);


12/12/2010 11:16:19 AM org.apache.catalina.core.ApplicationDispatcher invoke
GRAVE: El Servlet.service() para servlet SistemaArrendamiento lanzó una excepción
java.lang.IllegalArgumentException: When using array of Objects as the value of SCHEMA_SOURCE property , no two Schemas should share the same targetNamespace.
at org.apache.xerces.impl.xs.XMLSchemaLoader.processJ AXPSchemaSource(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadSche ma(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.findS chemaGrammar(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.handl eStartElement(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.start Element(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.sc anStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NS ContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse (Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(U nknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse( Unknown Source)
at org.apache.commons.digester.Digester.parse(Digeste r.java:1764)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXM L(JRXmlLoader.java:241)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXM L(JRXmlLoader.java:228)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(J RXmlLoader.java:216)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(J RXmlLoader.java:170)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(J RXmlLoader.java:154)
at net.sf.jasperreports.engine.JasperCompileManager.c ompileReport(JasperCompileManager.java:146)
at mpfn.gob.pe.sa.controller.ReportesController.Impri mir(ReportesController.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.bind.annotation.support.Ha ndlerMethodInvoker.invokeHandlerMethod(HandlerMeth odInvoker.java:174)
at org.springframework.web.servlet.mvc.annotation.Ann otationMethodHandlerAdapter.invokeHandlerMethod(An notationMethodHandlerAdapter.java:421)
at org.springframework.web.servlet.mvc.annotation.Ann otationMethodHandlerAdapter.handle(AnnotationMetho dHandlerAdapter.java:409)
at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:771)
at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:716)
at org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.d oGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:717)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.inv oke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.pro cessRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doF orward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.for ward(ApplicationDispatcher.java:302)
at org.tuckey.web.filters.urlrewrite.NormalRewrittenU rl.doRewrite(NormalRewrittenUrl.java:195)
at org.tuckey.web.filters.urlrewrite.RuleChain.handle Rewrite(RuleChain.java:159)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRule s(RuleChain.java:141)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.proc essRequest(UrlRewriter.java:90)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter .doFilter(UrlRewriteFilter.java:417)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFil ter.doFilterInternal(HiddenHttpMethodFilter.java:7 7)
at org.springframework.web.filter.OncePerRequestFilte r.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFi lter.doFilterInternal(CharacterEncodingFilter.java :88)
at org.springframework.web.filter.OncePerRequestFilte r.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.springframework.orm.jpa.support.OpenEntityMana gerInViewFilter.doFilterInternal(OpenEntityManager InViewFilter.java:113)
at org.springframework.web.filter.OncePerRequestFilte r.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProce ssor.run(JIoEndpoint.java:396)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)