I am not able to solve this problem
I am using sun one app server to run my jbpm apllication
Can anybody help me out in solving this problem

org.xml.sax.SAXNotRecognizedException: Property: http://apache.org/xml/properties/schema/external-schemaLocation
at org.apache.crimson.parser.XMLReaderImpl.setProperty(XMLReaderImpl.java:272)
at org.apache.crimson.jaxp.SAXParserImpl.setProperty(SAXParserImpl.java:190)
at org.jbpm.jpdl.xml.JpdlParser.createXmlReader(JpdlParser.java:83)
at org.jbpm.jpdl.xml.JpdlParser.createSaxReader(JpdlParser.java:62)
at org.jbpm.jpdl.xml.JpdlParser.parse(JpdlParser.java:56)
at org.jbpm.jpdl.xml.JpdlXmlReader.readProcessDefinition(JpdlXmlReader.java:138)
at org.jbpm.graph.def.ProcessDefinition.parseXmlInputStream(ProcessDefinition.java:172)
at com.mot.gama.siepoc.common.requesthandler.RequestHandlerBean.onMessage(RequestHandlerBean.java:198)
at com.sun.ejb.containers.MessageBeanContainer.onMessage(MessageBeanContainer.java:857)
at com.sun.ejb.containers.MessageBeanListenerConcurrent.onMessage(MessageBeanListenerConcurrent.java:20)
at com.sun.messaging.jmq.jmsclient.ServerSessionRunner.onMessage(ServerSessionRunner.java:139)
at com.sun.messaging.jmq.jmsclient.ServerSessionRunner.run(ServerSessionRunner.java:105)
at com.sun.messaging.jmq.jmsclient.SessionImpl.run(SessionImpl.java:2313)
at com.sun.enterprise.jms.SessionWrapperBase.run(SessionWrapperBase.java:199)
at com.iplanet.ias.ejb.containers.IASServerSessionImpl.run(IASServerSessionImpl.java:191)
at java.lang.Thread.run(Thread.java:534)