java - 如何找到 javax.transaction.RollbackException 的原因？

Question

我正在使用 Hibernate 4.2.21在 websphere 8.5.5.4 上运行 Java 6

数据库:Microsoft SQL Server 2012

有时，当我尝试使用以下代码更新实体时:

this.transaction.begin();
// lots of lines of code here before the merge
merge(carentrypermitrequest);
this.transaction.commit(); // exception here

我得到以下异常:

javax.transaction.RollbackException
    at com.ibm.tx.jta.impl.TransactionImpl.stage3CommitProcessing(TransactionImpl.java:1268)
    at com.ibm.tx.jta.impl.TransactionImpl.processCommit(TransactionImpl.java:1042)
    at com.ibm.tx.jta.impl.TransactionImpl.commit(TransactionImpl.java:963)
    at com.ibm.ws.tx.jta.TranManagerImpl.commit(TranManagerImpl.java:439)
    at com.ibm.tx.jta.impl.TranManagerSet.commit(TranManagerSet.java:191)
    at com.ibm.ws.tx.jta.UserTransactionImpl.commit(UserTransactionImpl.java:302)
    at com.dataserve.mci.bean.license.CarEntryPermitRequestBean.completeAction(CarEntryPermitRequestBean.java:1525)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:328)
    at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:341)
    at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
    at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)
    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)
    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)
    at javax.faces.component.UICommand.broadcast(Unknown Source)
    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)
    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)
    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)
    at javax.faces.webapp.FacesServlet.service(Unknown Source)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)
    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)

这就是我获取 session 工厂的方式:

protected SessionFactory getSessionFactory() {
        try {
            return (SessionFactory) new InitialContext().lookup("SessionFactory");
        } catch (Exception e) {
            log.error("Could not locate SessionFactory in JNDI", e);
            throw new IllegalStateException("Could not locate SessionFactory in JNDI");
        }
    }

这是我获得交易的方式:

public final UserTransaction transaction = getUserTransaction();

protected UserTransaction getUserTransaction() {
        try {
            return (UserTransaction) new InitialContext().lookup("java:comp/UserTransaction");
        } catch (NamingException e) {
            e.printStackTrace();
            System.err.println("Could not locate UserTransaction in JNDI" + e.getMessage());
            throw new IllegalStateException("Could not locate UserTransaction in JNDI");
        }
    }

合并方法如下:

public CarEntryPermitRequest merge(CarEntryPermitRequest detachedInstance) {
            try {
                CarEntryPermitRequest result = (CarEntryPermitRequest) sessionFactory.getCurrentSession()
                        .merge(detachedInstance);
                return result;
            } catch (RuntimeException re) {
                throw re;
            }
        }

和 completeAction() 方法:

public void completeAction() {

        try {

            Map fields = new HashMap();

            RequestContext requestContext = RequestContext.getCurrentInstance();
            RequestContext.getCurrentInstance().addCallbackParam("isValid", Boolean.valueOf(true));

            
            this.transaction.begin();

            if (stepNumber == null) {

                if (numberOfUploadedFiles < 2) {
                    addErrorMessage("error1", null, true);
                    return;
                }
                requestContext.addCallbackParam("step", new Integer(1));
                requestContext.addCallbackParam("isValid2", true);

                if (carentrypermitrequest == null)
                    carentrypermitrequest = new CarEntryPermitRequest();

                carentrypermitrequest.setRequesterUserName(loggedInUserId);
                carentrypermitrequest.setRequesterName(empName);
                carentrypermitrequest.setRequesterDepartmentName(empDept);
                carentrypermitrequest.setRequesterMobile(empMobile);
                carentrypermitrequest.setRequesterEmail(empEmail);
                carentrypermitrequest.setRequestDate(new Date());
                carentrypermitrequest.setRequestStatus(CarEntryPermitRequestStatusEnum.PENDING.getValue());

                if (destination == null) {

                    addErrorMessage("error2", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                if (empName == null || empName.equals("")) {

                    addErrorMessage("error3", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                if (empMobile == null || empMobile.equals("")) {

                    addErrorMessage("error4", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                if (empBuild.equals("error5")) {
                    addErrorMessage("error6", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                try {
                    if (carcategoryvalue == -1 || carcategoryvalue == null || cartypevalue == null
                            || cartypevalue == 0) {
                        addErrorMessage("error7", null,
                                true);
                        requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                        requestContext.addCallbackParam("isValid2", false);
                        this.transaction.commit();
                        return;
                    }
                } catch (Exception e) {
                    AppLogger.Log(e);
                    addErrorMessage("error8", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    this.transaction.commit();
                    return;
                }

                if (plateNumerSplited[0].trim().equals("") || plateNumerSplited[1].trim().equals("")) {
                    addErrorMessage("error9", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                platenumber = getPlateString(plateNumerSplited);

                if (carentrypermitrequesthome.isPlateHasPendingRequest(platenumber)) {
                    addErrorMessage("error10", null,
                            true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);
                    this.transaction.commit();
                    return;
                }

                if (destination.equals(DESTINATION_EMPLOYEE)) {

                    IoEmployees employee = ioemployeeHome.findByUserId(loggedInUserId);
                    if (employee != null) {
                        if (employee.getEmpMobile() == null || employee.getEmpMobile().trim().length() == 0) {
                            employee.setEmpMobile(empMobile);
                            ioemployeeHome.merge(employee);
                        }
                        carentrypermitrequest.setEmployee(employee);
                    }
                    carentrypermitrequest.setPlatenumber(platenumber);
                    if (StringUtils.isNotBlank(employeeNumber))
                        carentrypermitrequest.setEmployeeNumber(Integer.parseInt(employeeNumber.trim()));
                    if (StringUtils.isNotBlank(empExt))
                        carentrypermitrequest.setExt(Integer.parseInt(empExt.trim()));

                    CarType cartypeobj = cartypehome.findById(cartypevalue);
                    carentrypermitrequest.setCartypeId(cartypeobj);
                    carentrypermitrequest.setPermissioncase("under process");
                    CarCategory carcategoryobj = carcategoryehome.findById(carcategoryvalue);
                    carentrypermitrequest.setCarcategoryId(carcategoryobj);

                    CarColor carcolorobj = carcolorhome.findById(carcolorvalue);
                    carentrypermitrequest.setCarcolorId(carcolorobj);
                    carentrypermitrequest.setCarmodel(model);
                    carentrypermitrequest.setNotes(notes);
                    permitRequestDate = permitRequestDate.replace("/", "");
                    carentrypermitrequest.setPermitRequestDate(new Integer(permitRequestDate));

                    carentrypermitrequest.setEmpbuilding(empBuild);

                    carentrypermitrequesthome.attachDirty(carentrypermitrequest);
                    this.transaction.commit();
                    requestId = carentrypermitrequest.getCarentrypermitrequestId();
                    String subject = "aaaaaaaa  " + empName + " - bbbbbbbb : " + empMobile;

                    fields.put("F_Subject", subject);
                    fields.put("processType", PageCodeBase.PROCCESS_TYPES.CARENTRY.getCode());
                    fields.put("processID", carentrypermitrequest.getCarentrypermitrequestId());
                    fields.put("sendto", DESTINATION_EMPLOYEE);
                    fields.put("carentrypermitrequestID", carentrypermitrequest.getCarentrypermitrequestId());
                    fields.put("Building", empBuild.equals("المبنى الرئيسي") ? 1 : 2);
                    empMobileDisable = true;
                }

                if (destination.equals(DESTINATION_NOT_EMPLOYEE)) {

                    if (empDept == null || empDept.equals("")) {
                        addErrorMessage("aaaaaaaaaaa", null, true);
                        requestContext.addCallbackParam("isValid2", false);
                        this.transaction.commit();
                        return;
                    }
                    if (empNumber == null || empNumber.equals("")) {
                        addErrorMessage("vvvvvvvvvv ", null, true);
                        requestContext.addCallbackParam("isValid2", false);
                        this.transaction.commit();
                        return;
                    }

                    IoDepartments deptid = new IoDepartmentsHome().findByName(empDept);

                    carentrypermitrequest.setEmpdeptoutministry(deptid);
                    carentrypermitrequest.setEmpnameoutministry(empName);
                    carentrypermitrequest.setEmpnumoutministry(empNumber);
                    carentrypermitrequest.setEmpmobileoutministry(empMobile);
                    carentrypermitrequest.setEmpemailoutministry(empEmail);
                    carentrypermitrequest.setPlatenumber(platenumber);
                    CarType cartypeobj = cartypehome.findById(cartypevalue);
                    carentrypermitrequest.setCartypeId(cartypeobj);
                    carentrypermitrequest.setPermissioncase("تحت الأجراء");
                    CarCategory carcategoryobj = carcategoryehome.findById(carcategoryvalue);
                    carentrypermitrequest.setCarcategoryId(carcategoryobj);
                    CarColor carcolorobj = carcolorhome.findById(carcolorvalue);
                    carentrypermitrequest.setCarcolorId(carcolorobj);
                    carentrypermitrequest.setCarmodel(model);
                    carentrypermitrequest.setNotes(notes);
                    permitRequestDate = permitRequestDate.replace("/", "");
                    carentrypermitrequest.setPermitRequestDate(new Integer(permitRequestDate));

                    carentrypermitrequest.setEmpbuilding(empBuild);

                    carentrypermitrequesthome.attachDirty(carentrypermitrequest);
                    this.transaction.commit();
                    requestId = carentrypermitrequest.getCarentrypermitrequestId();
                    String subject = "gggggggggg  " + empName + " - tttttttttt: " + empMobile;

                    fields.put("F_Subject", subject);
                    fields.put("processType", PageCodeBase.PROCCESS_TYPES.CARENTRY.getCode());
                    fields.put("processID", carentrypermitrequest.getCarentrypermitrequestId());
                    fields.put("sendto", DESTINATION_NOT_EMPLOYEE);
                    fields.put("carentrypermitrequestID", carentrypermitrequest.getCarentrypermitrequestId());
                    fields.put("Building", empBuild.equals("المبنى الرئيسي") ? 1 : 2);

                    empMobileDisable = true;
                }
                processHandler.doLaunch(fields);

                String queueName = "";
                if (empBuild.equals(MAIN_BUILDING_VALUE)) {
                    queueName = MAIN_BUILDING_QUEUE;
                } else if (empBuild.equals(BUSINESS_BUILDING_VALUE)) {
                    queueName = BUSINESS_BUILDING_QUEUE;
                }
                List<String> toList = getPublicInboxUsersEmails(queueName);
                String mailSubject = "eeeeeeeeeeeee";
                String mailBody = createMailBodyForNewRequest();
                String imageName = "moamalatIcon.jpg";
                String bannerPath = NotificationThread.class.getResource(imageName).getPath();
                NotificationThread thread = new NotificationThread(toList, mailSubject, mailBody, configs, bannerPath);
                thread.start();

                String[] paramsArray = { carentrypermitrequest.getPlatenumber(), requestId.toString(),
                        GeneralUtils.getConfig("CAR_INQUIRE_URL") };
                sendSMSNotificaiton(empMobile, ProcessConstant.SMS_CODE_CAR_PASS_RECEIVED, paramsArray);

            }

            else if (stepNumber == STEP_NUMBER_EMPLOYEE_ACTION) { // security manager step
                requestContext.addCallbackParam("isValid2", true);

                Integer carentrypermitrequestID = (Integer) processHandler.getStepElement()
                        .getParameterValue("carentrypermitrequestID");

                if (dManaSecurityApprove == null || dManaSecurityApprove == 0) {

                    addErrorMessage("yyyyyyyyyy", null, true);
                    requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                    requestContext.addCallbackParam("isValid2", false);

                    return;
                }

                if ((permissiondate == null || permissiondate.trim().length() == 0 || permissionenumber == null
                        || permissionenumber.trim().length() == 0) && (dManaSecurityApprove == 1)) {

                    Boolean test = false;
                    addErrorMessage(" oooooooooooo", null, true);
                    requestContext.addCallbackParam("isValid", test);
                    requestContext.addCallbackParam("isValid2", false);
                    return;

                }

                carentrypermitrequest.setSecuritymanagernotes(securityManagerNotes);

                securityManager = new IoDepartmentsHome()
                        .findById(Integer.parseInt((configs.getProperty(ProcessConstant.DEP_Security_DEP))))
                        .getIoEmployeesByManagerid();

                carentrypermitrequest.setSecuritymanager(securityManager);

                IoEmployees actionEmployee = ioemployeeHome.findByUserId(getUserName());
                carentrypermitrequest.setActionEmployee(actionEmployee);

                if (dManaSecurityApprove.equals(1)) {

                    platenumber = getPlateString(plateNumerSplited);
                    carentrypermitrequest.setPlatenumber(platenumber);
                    CarType cartypeobj = cartypehome.findById(cartypevalue);
                    carentrypermitrequest.setCartypeId(cartypeobj);
                    CarCategory carcategoryobj = carcategoryehome.findById(carcategoryvalue);
                    carentrypermitrequest.setCarcategoryId(carcategoryobj);
                    CarColor carcolorobj = carcolorhome.findById(carcolorvalue);
                    carentrypermitrequest.setCarcolorId(carcolorobj);
                    carentrypermitrequest.setCarmodel(model);

                    carentrypermitrequest.setPermissioncase(permissioncase);
                    permissiondate = permissiondate.replace("/", "");
                    carentrypermitrequest.setPermissiondate(new Integer(permissiondate));
                    carentrypermitrequest.setPermissionenumber(new Integer(permissionenumber));
                    carentrypermitrequest.setVersionnumber(new Integer(versionnumber));
                    carentrypermitrequest.setLicenseVersion(licenseVersion);
                    carentrypermitrequest.setAccepted(1);
                    carentrypermitrequest.setAcceptDate(new Date());
                    carentrypermitrequest.setAcceptedBy(loggedInUserId);
                    carentrypermitrequest.setRequestStatus(CarEntryPermitRequestStatusEnum.ACCEPTED.getValue());
                    if (isexpireDate == true || permissioncase.equals(PERMIT_TYPE_TEMPORARY)) {
                        if (expireDate == null || expireDate.length() == 0) {
                            addErrorMessage("mmmmmmmmmmmm", null, true);
                            requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                            return;
                        }
                        String expireDatestr = expireDate.replace("/", "");
                        carentrypermitrequest.setExpiredate(new Integer(expireDatestr));

                        String hijriYear = expireDate.substring(0, 4);
                        String hijriMonth = expireDate.substring(5, 7);
                        String hijriDay = expireDate.substring(8);
                        String expireDateGreg = convertFromHijriToGreg(hijriYear, hijriMonth, hijriDay);

                        fields.put("expire", true);
                        fields.put("expireDate", expireDateGreg);

                    }

                    fields.put("decisionManaSecurityNum", 1);
                    fields.put("carentrypermitrequestID", carentrypermitrequestID);

                    processHandler.doComplete(fields);
                    sendSMSNotificaiton(empMobile, ProcessConstant.SMS_CODE_CAR_PASS, new String[] {});

                }
                if (dManaSecurityApprove.equals(2)) {

                    if (showSecurityManSec && StringUtils.isBlank(securityManagerNotes)) {
                        addErrorMessage("qqqqqqqqqq", null, true);
                        requestContext.addCallbackParam("isValid", Boolean.valueOf(false));
                        requestContext.addCallbackParam("isValid2", false);
                        return;
                    }
                    carentrypermitrequest.setRejectDate(new Date());
                    carentrypermitrequest.setRejectedBy(loggedInUserId);
                    carentrypermitrequest.setRejectReason(securityManagerNotes.trim());
                    carentrypermitrequest.setRequestStatus(CarEntryPermitRequestStatusEnum.REJECTED.getValue());
                    fields.put("refusedfrom", 1);
                    fields.put("decisionManaSecurityNum", 2);
                    fields.put("carentrypermitrequestID", carentrypermitrequestID);
                    processHandler.doComplete(fields);
                    String rejectReason = securityManagerNotes;
                    if (securityManagerNotes.length() > 20) {
                        rejectReason = securityManagerNotes.substring(0, 20) + "...";
                    }
                    String[] paramsArray = { carentrypermitrequest.getPlatenumber(), rejectReason };
                    sendSMSNotificaiton(empMobile, ProcessConstant.SMS_CODE_CAR_PASS_REJECTED, paramsArray);
                }

                if (dManaSecurityApprove.equals(3)) {

                    if (selectedEmp != null) {

                        fields.put("SecurityEmp", new String[] { selectedEmp });
                    }
                    fields.put("decisionManaSecurityNum", 3);
                    fields.put("carentrypermitrequestID", carentrypermitrequestID);
                    processHandler.doComplete(fields);
                }

                loadCredentials(
                        (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest());

                // sometimes this throws rollbackexception
                carentrypermitrequesthome.merge(carentrypermitrequest);
                // carentrypermitrequesthome.attachDirty(carentrypermitrequest);
                this.transaction.commit();
            }

        } catch (Exception e) {
            AppLogger.Log("######### EXCEPTION WITH CAR ENTRY REQUEST NUMBER: "
                    + carentrypermitrequest.getCarentrypermitrequestId() + " WITH USER: " + loggedInUserId
                    + ",stepNumber: " + stepNumber + ",permissionNumber: " + permissionenumber
                    + ",getTranscationStatus: " + getTranscationStatus());
            AppLogger.Log(e);
            RequestContext.getCurrentInstance().addCallbackParam("isValid", Boolean.valueOf(false));
            RequestContext.getCurrentInstance().addCallbackParam("error", true);
        }
    }

我想知道是什么导致了 RollbackException，因为抛出的异常不包含除上述内容之外的任何详细信息。

Answer 1

过去，我一直在为同样的问题而苦苦挣扎:我试图用一些新数据更新一个实体，但一直收到此 RollBackException 而没有任何痕迹。

在对 Hibernate 的源代码进行数小时的调试之后，我发现 另一个完全不同的异常在之前从 Hibernate 的源代码中抛出并被吞没在一个空的 catch block 中并消失了从任何外部角度来看。这破坏了我用来合并数据的 EntityManager。

特别是，Hibernate 试图实例化过程中所需的另一个实体，但找不到默认的公共(public)构造函数。

我仍然不知道 Hibernate 的代码如何让代码行包含空的 catch block 。我使用的版本是 4.3.5.Final。

我猜你遇到了同样的问题:一些异常，可能与我遇到的异常性质不同(缺少公共(public)默认构造函数)，是从 hibernate 层抛出的，在那里被捕获然后没有被管理无论如何。

我建议你操作相同的进程:

下载 Hibernate 的源代码并在其中迭代整个过程调用的方法，尤其要留意空的 catch block 。请注意，在我的例子中，空的 catch block 不属于 RollBackException 堆栈跟踪中可见的方法!

---

这是我当时在 CodeRanch 上创建的讨论我的问题的帖子的链接:

CodeRanch - RollbackException thrown when adding ManyToOne relationship