JBPM 堆栈溢出，查了2天了，没有结果

Question

只要程序运行到taskService.getVariable的各种形式，就是如下错误,快崩溃了，有没有人遇到过,我用的是JBPM+s2sh, 程序运行半年了没出问题，最近就过不去了，求解啊
tacktraces
java.lang.reflect.InvocationTargetException 
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:441)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:280)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:243)
    com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252)
    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:306)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)
    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
    org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.ecside.filter.ECSideFilter.doFilter(ECSideFilter.java:188)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    com.agdagl.view.struts2.bean.SecurityFilter.doFilter(SecurityFilter.java:42)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    java.lang.Thread.run(Thread.java:619)
    
java.lang.StackOverflowError 
    org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:361)
    org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:108)
    org.hibernate.collection.AbstractPersistentCollection.readElementByIndex(AbstractPersistentCollection.java:183)
    org.hibernate.collection.PersistentMap.get(PersistentMap.java:169)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariableObject(ScopeInstanceImpl.java:205)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.setVariable(ScopeInstanceImpl.java:161)
    sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.setVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.setVariable(ScopeInstanceImpl.java:178)
    sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.setVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.setVariable(ScopeInstanceImpl.java:178)
    sun.reflect.GeneratedMethodAccessor65.invoke(Unknown So
 

Answer 1

自己查看了JBPM的源代码，发现感觉应该是他的迭代次数太多了，我已经自己通过taskServer获取了任务，结果我再获取variable的时候，底层又通过我传过去的taskId又找了一遍task对象，我就感觉这点东西反复在找导致的堆栈溢出，不知道有没有高人能帮帮我，如何解决

Answer 2

所谓StackOverflow，就是方法嵌套的太深，如深层递归

Answer 3

什么嘛 这错误跟JBPM有毛线关系 明明是你那S2的问题你那S2的com.agdagl.view.struts2.bean.SecurityFilter.doFilter 有什么问题你注释掉看看。DEBUG

Answer 4

主要问题是，我自己的方法都没问题的，就是调用JBPM的时候，出这错误，难道是我调用的方法有问题？调试JBPM有什么好办法么？

Answer 5

在JBPMUtil中，我定义了这个方法
public List getAllToDos(String iduser) {
List<Task> l = taskService.createTaskQuery().assignee(iduser).page(0, 100)
.orderDesc("createTime").list();
return l;
}
然后在action中 我如下调用
List<Task> tasks = jbpmUtil.getAllToDos(user.getIduser());
for (Iterator iterator = tasks.iterator(); iterator.hasNext();) {
Task task = (Task) iterator.next();
    Set<String> strSet = new HashSet<String>();
strSet.add("publish");
strSet.add("idKey");
strSet.add("nameKey");
strSet.add("actionKey");
    Map<String, Object> m = jbpmService.getJbpmUtil().getTaskService().getVariables(taskId, strSet);
}
调试运行到
Map<String, Object> m = jbpmService.getJbpmUtil().getTaskService().getVariables(taskId, strSet);的时候报错，StackOverflow。
做如下调试
String idKey = (String)jbpmService.getJbpmUtil().getTaskService().getVariable(taskId, "idKey");
报错。
修改为如下
String publish= (String)jbpmService.getJbpmUtil().getTaskService().getVariable(taskId, "publish");
得到了publish，区别就是publish就是一个1位的字符，idKey为32位的字符串

Answer 6

org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
求高人帮看看这个错误，其中这段错误，一直出现20多次
org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
    org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_35.getVariable(ExecutionImpl_$$_javassist_35.java)
    org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:198)
    sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)这TM 到底是怎么回事啊，求高人给点建议啊