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org.xml.sax.SAXParseException: Content is not allowed in prolog.	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:215)	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:386)	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316)	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1438)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(XMLDocumentScannerImpl.java:899)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)	at org.apache.commons.digester.Digester.parse(Digester.java:1666)	at net.sf.jasperreports.engine.xml.JRPrintXmlLoader.loadXML(JRPrintXmlLoader.java:151)	at net.sf.jasperreports.engine.xml.JRPrintXmlLoader.load(JRPrintXmlLoader.java:103)	at net.sf.jasperreports.view.JRViewer.loadReport(JRViewer.java:1376)	at net.sf.jasperreports.view.JRViewer.init(JRViewer.java:243)	at net.sf.jasperreports.view.JRViewer.init(JRViewer.java:214)	at net.sf.jasperreports.view.JasperViewer.init(JasperViewer.java:140)	at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:397)	at net.sf.jasperreports.view.JasperViewer.viewReport(JasperViewer.java:328)	at br.com.abril.contratos.Gerar.geraRelatorio(Gerar.java:38)	at br.com.abril.contratos.Gerar.main(Gerar.java:47)