两种部署方式：
1、用MyEclipse部署。部署正常，在后台监控可以查看 Process Image。
2、代码部署。部署后，提示成功，数据库也一样有记录。可在后台监控时查看Process Image，没有流程图，只显示Process Image Available。

控制台报错如下：

2008-6-30 15:49:14 com.sun.faces.lifecycle.LifecycleImpl phase
警告: phase(RENDER_RESPONSE 6,com.sun.faces.context.FacesContextImpl@e08edd) threw exception: java.lang.NullPointerException null
org.jbpm.jsf.core.phase.ProcessFilePhaseListener.beforePhase(ProcessFilePhaseListener.java:102)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:218)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
java.lang.Thread.run(Thread.java:595)