[#5256] - Error when generate a PDF

Hello,

I'm using jasper reports 3.7 and my aplication server is Jboss 5.0.1 java version is 1.6.0.65

I don't have any problem until now. Now when the pdf is generate i've the following error: org.apache.xerces.util.XMLGrammarPoolImpl cannot be cast to com.sun.org.apache.xerces.internal.xni.grammars. XMLGrammarPool

The print stack is:

java.lang.ClassCastException: org.apache.xerces.util.XMLGrammarPoolImpl cannot be cast to com.sun.org.apache.xerces.internal.xni.grammars. XMLGrammarPool
at com.sun.org.apache.xerces.internal.impl.xs. XMLSchemaLoader.reset(XMLSchemaLoader.java:990)
at com.sun.org.apache.xerces.internal.impl.xs. XMLSchemaValidator.reset(XMLSchemaValidator.java:1274)
at com.sun.org.apache.xerces.internal.parsers. XML11Configuration.configurePipeline(XML11Configuration.java:1160)
at com.sun.org.apache.xerces.internal.parsers. XIncludeAwareParserConfiguration.configurePipeline(XIncludeAwareParserConfiguration.java:151)
at com.sun.org.apache.xerces.internal.parsers. XML11Configuration.parse(XML11Configuration.java:785)
at com.sun.org.apache.xerces.internal.parsers. XML11Configuration.parse(XML11Configuration.java:744)
at com.sun.org.apache.xerces.internal.parsers. XMLParser.parse(XMLParser.java:128)
at com.sun.org.apache.xerces.internal.parsers. AbstractSAXParser.parse(AbstractSAXParser.java:1208)
at com.sun.org.apache.xerces.internal.jaxp. SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:543)
at org.apache.commons.digester.Digester. parse(Digester.java:1647)
at net.sf.jasperreports.engine.xml.JRXmlLoader. loadXML(JRXmlLoader.java:235)
at net.sf.jasperreports.engine.xml.JRXmlLoader. loadXML(JRXmlLoader.java:222)
at net.sf.jasperreports.engine.xml.JRXmlLoader. load(JRXmlLoader.java:210)
at net.sf.jasperreports.engine.xml.JRXmlLoader. load(JRXmlLoader.java:164)
at net.sf.jasperreports.engine.xml.JRXmlLoader. load(JRXmlLoader.java:148)
at net.sf.jasperreports.engine.JasperCompileManager. compileReport(JasperCompileManager.java:146)
at outsystems.nosreporting.actions.ActReportToPDF. mosReportToPDF(Unknown Source)
at ospem.referencesproxy.rssextensionreporting. actions.ActReportToPDF.mosReportToPDF(Unknown Source)
at ospem.actions.ActReportToPDF. executeReportToPDF(Unknown Source)
at ospem.actions.ActReceitaTmc_ObterReport. executeReceitaTmc_ObterReport(Unknown Source)
at ospem.managedbea

Every time that we call the extension to generate pdf we are forcing the propertie with this value: System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "org.apache.xerces.jaxp.DocumentBuilderFactoryImpl");

When error occurs the only way to generate pds is restart Jboss.

Thanks,

Francisco