JPA NamedQuery 不在 Glassfish4 中（但在 Glassfish3 中有效）

Question

我正在将使用 EJB 和 JPA (EclipseLink) 的应用程序从 Glassfish3 迁移到 Glassfish4。大多数都在新服务器上工作，但由于某种原因，这个命名查询（其中一个对象在 JPQL 语句中实例化）不起作用：

@NamedQuery(
    name = "countByUserType", 
    query = "SELECT new org.util.CountBean(ev.user.type, count(ev.user.id)) 
             FROM Event ev WHERE ev.idTs = :idTs GROUP BY ev.user.type"
)

我的 class CountBean 是一个简单的 POJO class

public class CountBean{
    String label;
    Long count;
    public CountBean(String label, Long count) {
        this.label = label;
        this.count = count;
    }
}

我收到的错误信息如下：

 Caused by: Exception [EclipseLink-6168] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.QueryException
 Exception Description: Query failed to prepare, unexpected error occurred: [java.lang.NullPointerException].
 Internal Exception: java.lang.NullPointerException
 Query: ReportQuery(name="countByUserType" referenceClass=Event jpql="SELECT new org.util.CountBean(ev.user.type, count(ev.user.idU), 0l) FROM Event ev WHERE ev.idTs = :idTs GROUP BY ev.user.type")
    at org.eclipse.persistence.exceptions.QueryException.prepareFailed(QueryException.java:1584)
    at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:680)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:888)
    at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:613)
    at org.eclipse.persistence.internal.jpa.QueryImpl.getDatabaseQueryInternal(QueryImpl.java:341)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:1107)
    at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createNamedQuery(EntityManagerWrapper.java:522)
    at org.un.sers.repository.EventFacade.countRoomsBooked(EventFacade.java:37)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:46)
    at sun.reflect.GeneratedMethodAccessor90.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
    at sun.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
    ... 35 more
 Caused by: java.lang.NullPointerException
    at org.eclipse.persistence.queries.ConstructorReportItem.initialize(ConstructorReportItem.java:167)
    at org.eclipse.persistence.queries.ReportQuery.prepare(ReportQuery.java:1058)
    at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:661)
    ... 69 more

如果我能从遇到过类似问题的人那里得到一些见解，或者我发布的代码中是否有问题，我将不胜感激。同样，当我在 Glassfish 3 上部署应用程序但在 Glassfish 4 上部署应用程序并且它连接到的数据库是 Oracle 11g 时，这仍然有效。

Answer 1

这是旧版本 eclipselink 中的错误，请检查：

解决方案

最好的解决方法是升级到最新版本2.7.1 Latest Release

此外，我想使用 Payara Server 而不是 GlassFish 4 Server，修复了很多错误我对这个服务器有很好的体验，它更现在性能比 GlassFish 更快。

JPA NamedQuery 不在 Glassfish4 中（但在 Glassfish3 中有效）

JPA NamedQuery not in Glassfish4 (but works in Glassfish3)

java

oracle

jpa

glassfish

eclipselink