為什么 @Transactional 對於具有 EAP 7.2.x 和 7.3.x 的應用程序管理的 EntityManager 會失敗，而 7.1.x 卻完美無缺？

Question

下面的簡單示例確實適用於JBoss EAP 7.1.6 （及之前），但它在EAP 7.2.x和最新的7.3.0中失敗。

我創建了一個簡單的可重現示例並將其推送到https://github.com/da3x/JBoss-EAP-EntityManager-Problem 。 我也在與 Red Hat 支持人員聯系......但有人可能已經解決了這個問題。

#save1()和#save2()兩種方法對不同的EntityManager執行相同的操作。 第一個是應用程序管理的，第二個是容器管理的。

使用 EAP 7.1.x 都可以正確加入事務...使用 EAP 7.2.x 和 7.3.x，應用程序管理的刷新失敗。

package eu.ecg.test;

import java.io.Serializable;

import javax.inject.Inject;
import javax.inject.Named;
import javax.persistence.EntityManager;
import javax.transaction.Transactional;

@Named
public class MyBean implements Serializable {

    private static final long serialVersionUID = 1L;

    private static final String VIEW_ID = "/Transactional.xhtml?faces-redirect=true";

    @Inject
    @ApplicationManaged
    private EntityManager em1;

    @Inject
    @ContainerManaged
    private EntityManager em2;

    @Transactional
    public String save1() {
        System.out.println("MyBean.save1()");
        this.em1.flush(); // NOTE: needs Transaction!
        System.out.println("OK!");
        return VIEW_ID;
    }

    @Transactional
    public String save2() {
        System.out.println("MyBean.save2()");
        this.em2.flush(); // NOTE: needs Transaction!
        System.out.println("OK!");
        return VIEW_ID;
    }
}

兩個EntityManager均由以下 class 生成：

package eu.ecg.test;

import java.io.Serializable;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.persistence.PersistenceUnit;

@ApplicationScoped
public class Persistence implements Serializable {

    private static final long serialVersionUID = 1L;

    @PersistenceUnit(unitName = "example")
    private EntityManagerFactory factory;

    @PersistenceContext(unitName = "example")
    private EntityManager em;

    /**
     * @see PersistenceContextType#EXTENDED
     */
    @Produces
    @ApplicationManaged
    public EntityManager applicationManaged() {
        System.out.println("Persistence.applicationManaged()");
        return this.factory.createEntityManager();
    }

    /**
     * @see PersistenceContextType#TRANSACTION
     */
    @Produces
    @ContainerManaged
    public EntityManager containerManaged() {
        System.out.println("Persistence.containerManaged()");
        return this.em;
    }

}

這個精簡的例子展示了我現在遇到的核心問題。 真正的應用程序要復雜得多，並帶有超過 300k 行代碼——但它表現出相同的行為。 雖然它與 EAP 7.0.x 和 7.1.x 一起正常工作，但它在 7.2.x 和 7.3.0 上失敗。

我也知道我可以通過將em.joinTransaction()添加到#save1() ) 來解決這個問題——但據我所知，這不是必需的。 @Transactional注釋應該在這里發揮作用......不是嗎？

我們使用應用程序管理的 EntityManager 是因為有效的PersistenceContextType#EXTENDED允許我們通過在事務上下文之外使用托管實體進行延遲加載——同時僅讀取數據。

以下是相關的LOG：

08:33:14,501 INFO  [stdout] (default task-1) Persistence.applicationManaged()
08:33:14,607 INFO  [stdout] (default task-1) Persistence.containerManaged()
08:33:14,639 INFO  [stdout] (default task-1) MyBean.save2()
08:33:14,648 INFO  [stdout] (default task-1) OK!

08:33:22,113 INFO  [stdout] (default task-1) Persistence.applicationManaged()
08:33:22,113 INFO  [stdout] (default task-1) Persistence.containerManaged()
08:33:22,114 INFO  [stdout] (default task-1) MyBean.save1()
08:33:22,122 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (default task-1) #{myBean.save1()}: javax.persistence.TransactionRequiredException: no transaction is in progress: javax.faces.FacesException: #{myBean.save1()}: javax.persistence.TransactionRequiredException: no transaction is in progress
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:96)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:71)
    at javax.faces.api@3.0.0.SP01-redhat-00001//javax.faces.component.UICommand.broadcast(UICommand.java:222)
    at javax.faces.api@3.0.0.SP01-redhat-00001//javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:847)
    at javax.faces.api@3.0.0.SP01-redhat-00001//javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1396)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:58)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177)
    at javax.faces.api@3.0.0.SP01-redhat-00001//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:707)
    at javax.faces.api@3.0.0.SP01-redhat-00001//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
    at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
    at org.wildfly.extension.undertow@7.3.0.GA-redhat-00004//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
    at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.Connectors.executeRootHandler(Connectors.java:376)
    at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
    at org.jboss.threads@2.3.3.Final-redhat-00001//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
    at org.jboss.threads@2.3.3.Final-redhat-00001//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
    at org.jboss.threads@2.3.3.Final-redhat-00001//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
    at org.jboss.threads@2.3.3.Final-redhat-00001//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: javax.faces.el.EvaluationException: javax.persistence.TransactionRequiredException: no transaction is in progress
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:76)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:82)
    ... 57 more
Caused by: javax.persistence.TransactionRequiredException: no transaction is in progress
    at org.hibernate@5.3.14.Final-redhat-00001//org.hibernate.internal.AbstractSharedSessionContract.checkTransactionNeededForUpdateOperation(AbstractSharedSessionContract.java:398)
    at org.hibernate@5.3.14.Final-redhat-00001//org.hibernate.internal.SessionImpl.checkTransactionNeededForUpdateOperation(SessionImpl.java:3578)
    at org.hibernate@5.3.14.Final-redhat-00001//org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1462)
    at org.hibernate@5.3.14.Final-redhat-00001//org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1458)
    at deployment.A1E-3061.war//eu.ecg.test.MyBean.save1(MyBean.java:28)
    at deployment.A1E-3061.war//eu.ecg.test.MyBean$Proxy$_$$_WeldSubclass.save1$$super(Unknown Source)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.proxy.TerminalAroundInvokeInvocationContext.proceedInternal(TerminalAroundInvokeInvocationContext.java:51)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.proxy.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:78)
    at org.jboss.jts//com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.invokeInOurTx(TransactionalInterceptorBase.java:174)
    at org.jboss.jts//com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorRequired.doIntercept(TransactionalInterceptorRequired.java:53)
    at org.jboss.jts//com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.intercept(TransactionalInterceptorBase.java:88)
    at org.jboss.jts//com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorRequired.intercept(TransactionalInterceptorRequired.java:47)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:73)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68)
    at deployment.A1E-3061.war//eu.ecg.test.MyBean$Proxy$_$$_WeldSubclass.save1(Unknown Source)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at javax.el.api@2.0.0.Final-redhat-00001//javax.el.ELUtil.invokeMethod(ELUtil.java:245)
    at javax.el.api@2.0.0.Final-redhat-00001//javax.el.BeanELResolver.invoke(BeanELResolver.java:338)
    at javax.el.api@2.0.0.Final-redhat-00001//javax.el.CompositeELResolver.invoke(CompositeELResolver.java:198)
    at org.glassfish.jakarta.el@3.0.2.redhat-00001//com.sun.el.parser.AstValue.invoke(AstValue.java:261)
    at org.glassfish.jakarta.el@3.0.2.redhat-00001//com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:280)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
    at org.jboss.weld.core@3.1.2.Final-redhat-00001//org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:65)
    at com.sun.jsf-impl@2.3.9.SP05-redhat-00001//com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:66)
    ... 58 more

Answer 1

Red Hat 支持已打開 EAP 7.2 和 7.3 的拉取請求：

• https://issues.redhat.com/browse/JBEAP-19508 （公開）
• https://issues.redhat.com/browse/JBEAP-19509 （公開）
• https://access.redhat.com/solutions/5087381 （紅帽客戶門戶）

在那之前，解決方法是在flush() EntityManger.joinTransaction() ) 。