同样的环境，新系统能正常跑。

老系统做改造就报这个错误，求JBPM4大牛帮助。 也可以发邮件xiao303178394@gmail.com探讨

2013-07-19 13:44:24,501  INFO [http-8022-9] (Log4jLog.java:50) - errors during deployment of deployment(1):
  error: failed to parse xml : org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource
2013-07-19 13:44:24,501  INFO [http-8022-9] (Log4jLog.java:54) - exception while executing command org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd@19b18e4
org.jbpm.api.JbpmException:
  error: failed to parse xml : org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource
at org.jbpm.pvm.internal.xml.ProblemList.getJbpmException(ProblemList.java:175)
at org.jbpm.pvm.internal.xml.ProblemList.getJbpmException(ProblemList.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
at org.jbpm.pvm.internal.repository.DeploymentImpl$$EnhancerByCGLIB$$b6cbaf8d.getJbpmException(<generated>)
at org.jbpm.pvm.internal.repository.DeployerManager.deploy(DeployerManager.java:50)
at org.jbpm.pvm.internal.repository.RepositorySessionImpl.getObject(RepositorySessionImpl.java:130)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.getProcessDefinition(ProcessDefinitionQueryImpl.java:92)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.execute(ProcessDefinitionQueryImpl.java:72)
at org.jbpm.pvm.internal.query.AbstractQuery.untypedUniqueResult(AbstractQuery.java:77)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.uniqueResult(ProcessDefinitionQueryImpl.java:161)
at org.jbpm.pvm.internal.repository.RepositorySessionImpl.findProcessDefinitionByKey(RepositorySessionImpl.java:154)
at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:56)
at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:36)
at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:127)
at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:49)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:56)
at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServiceImpl.java:71)
at service.JbpmServiceImp.startFlow(JbpmServiceImp.java:95)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
at $Proxy55.startFlow(Unknown Source)
at com.dragonsoft.qbglyp.web.action.CjAction.saveForm(CjAction.java:1411)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.dragonsoft.commons.sys.CommonAction.execute(CommonAction.java:42)
at com.dragonsoft.commons.sys.GatherServlet.service(GatherServlet.java:49)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.dragonsoft.qbglyp.sys.LoginFilter.doFilter(LoginFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:475)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:475)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at org.jbpm.pvm.internal.xml.Parser.buildDocument(Parser.java:455)
at org.jbpm.pvm.internal.xml.Parser.execute(Parser.java:425)
at org.jbpm.pvm.internal.xml.Parse.execute(Parse.java:158)
at org.jbpm.pvm.internal.repository.ProcessDeployer.deploy(ProcessDeployer.java:68)
at org.jbpm.pvm.internal.repository.DeployerManager.deploy(DeployerManager.java:46)
... 57 more
org.jbpm.api.JbpmException:
  error: failed to parse xml : org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource
at org.jbpm.pvm.internal.xml.ProblemList.getJbpmException(ProblemList.java:175)
at org.jbpm.pvm.internal.xml.ProblemList.getJbpmException(ProblemList.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
at org.jbpm.pvm.internal.repository.DeploymentImpl$$EnhancerByCGLIB$$b6cbaf8d.getJbpmException(<generated>)
at org.jbpm.pvm.internal.repository.DeployerManager.deploy(DeployerManager.java:50)
at org.jbpm.pvm.internal.repository.RepositorySessionImpl.getObject(RepositorySessionImpl.java:130)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.getProcessDefinition(ProcessDefinitionQueryImpl.java:92)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.execute(ProcessDefinitionQueryImpl.java:72)
at org.jbpm.pvm.internal.query.AbstractQuery.untypedUniqueResult(AbstractQuery.java:77)
at org.jbpm.pvm.internal.query.ProcessDefinitionQueryImpl.uniqueResult(ProcessDefinitionQueryImpl.java:161)
at org.jbpm.pvm.internal.repository.RepositorySessionImpl.findProcessDefinitionByKey(RepositorySessionImpl.java:154)
at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:56)
at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:36)
at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:127)
at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:49)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:56)
at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServiceImpl.java:71)
at service.JbpmServiceImp.startFlow(JbpmServiceImp.java:95)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
at $Proxy55.startFlow(Unknown Source)
at com.dragonsoft.qbglyp.web.action.CjAction.saveForm(CjAction.java:1411)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.dragonsoft.commons.sys.CommonAction.execute(CommonAction.java:42)
at com.dragonsoft.commons.sys.GatherServlet.service(GatherServlet.java:49)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.dragonsoft.qbglyp.sys.LoginFilter.doFilter(LoginFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:475)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:475)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at org.jbpm.pvm.internal.xml.Parser.buildDocument(Parser.java:455)
at org.jbpm.pvm.internal.xml.Parser.execute(Parser.java:425)
at org.jbpm.pvm.internal.xml.Parse.execute(Parse.java:158)
at org.jbpm.pvm.internal.repository.ProcessDeployer.deploy(ProcessDeployer.java:68)
at org.jbpm.pvm.internal.repository.DeployerManager.deploy(DeployerManager.java:46)
... 57 more

error: failed to parse xml : org.xml.sax.SAXException 比较明显了吧。jpdl.xml 文件有问题

要是那么简单就好了，看清楚后面还有 org.xml.sax.SAXException: http://java.sun.com/xml/jaxp/properties/schemaSource 。记得最后解决是和公司的一个引用jar包冲突，导致scheme错误了，后来把该jar包冲突的部分结构去掉就不会出问题了。

总之是由于schemeSouce错误造成的解析错误。