activiti 工作流初始化失败了，错误信息在下边！

q496749021 2014-12-23 05:17:36

Dec 23, 2014 5:08:47 PM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Dec 23, 2014 5:08:47 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [/QianDaiFuOA] startup failed due to previous errors
Dec 23, 2014 5:08:47 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: The web application [/QianDaiFuOA] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@26a150e]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@28c4b5f]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
Dec 23, 2014 5:08:47 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: The web application [/QianDaiFuOA] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@20e64795]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@6e659812]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
Dec 23, 2014 5:08:48 PM org.activiti.engine.ProcessEngines initProcessEnginFromResource
INFO: initializing process engine for resource file:/home/workdisk/apache-tomcat-6.0.35/webapps/QianDaiFuOA/WEB-INF/classes/activiti.cfg.xml
Dec 23, 2014 5:08:48 PM org.activiti.engine.ProcessEngines initProcessEnginFromResource
SEVERE: Exception while initializing process engine :null
java.lang.NullPointerException
at org.apache.commons.logging.LogFactory.getCachedFactory(LogFactory.java:489)
at org.apache.commons.logging.LogFactory.getFactory(LogFactory.java:227)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.<init>(DefaultSingletonBeanRegistry.java:83)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.<init>(FactoryBeanRegistrySupport.java:43)
at org.springframework.beans.factory.support.AbstractBeanFactory.<init>(AbstractBeanFactory.java:175)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.<init>(AbstractAutowireCapableBeanFactory.java:157)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.<init>(DefaultListableBeanFactory.java:159)
at org.activiti.engine.impl.cfg.BeansConfigurationHelper.parseProcessEngineConfiguration(BeansConfigurationHelper.java:32)
at org.activiti.engine.impl.cfg.BeansConfigurationHelper.parseProcessEngineConfigurationFromInputStream(BeansConfigurationHelper.java:43)
at org.activiti.engine.ProcessEngineConfiguration.createProcessEngineConfigurationFromInputStream(ProcessEngineConfiguration.java:164)
at org.activiti.engine.ProcessEngineConfiguration.createProcessEngineConfigurationFromInputStream(ProcessEngineConfiguration.java:160)
at org.activiti.engine.ProcessEngines.buildProcessEngine(ProcessEngines.java:191)
at org.activiti.engine.ProcessEngines.initProcessEnginFromResource(ProcessEngines.java:165)
at org.activiti.engine.ProcessEngines.init(ProcessEngines.java:97)
at org.activiti.engine.ProcessEngines.getProcessEngine(ProcessEngines.java:222)
at org.activiti.engine.ProcessEngines.getDefaultProcessEngine(ProcessEngines.java:215)
at com.qdf.jbpmservice.JbpmServiceUtil.ActivitiBase.<clinit>(ActivitiBase.java:20)
at com.qdf.jbpmservice.JbpmServiceInterfaceImpl.ActivitiCommonServiceImpl.<init>(ActivitiCommonServiceImpl.java:34)
at com.qdf.serviceImpl.OGDocumentServiceImpl.OGDocTodoServiceImpl.<clinit>(OGDocTodoServiceImpl.java:77)
at com.qdf.sysServlet.PostgrantAutoCheck.<clinit>(PostgrantAutoCheck.java:30)
at sun.misc.Unsafe.ensureClassInitialized(Native Method)
at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:25)
at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:122)
at java.lang.reflect.Field.acquireFieldAccessor(Field.java:918)
at java.lang.reflect.Field.getFieldAccessor(Field.java:899)
at java.lang.reflect.Field.set(Field.java:657)
at org.apache.catalina.loader.WebappClassLoader.clearReferencesStaticFinal(WebappClassLoader.java:2069)
at org.apache.catalina.loader.WebappClassLoader.clearReferences(WebappClassLoader.java:1929)
at org.apache.catalina.loader.WebappClassLoader.stop(WebappClassLoader.java:1833)
at org.apache.catalina.loader.WebappLoader.stop(WebappLoader.java:740)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4920)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4750)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

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