Я получаю NPE, используя NULL в довольно простом JPQL-запросе, см. Трассировку стека ниже:
15:25:46,724 ERROR [net.bbstats.framework.cdi.BaseCdiBean] (default task-1) CompetitionProvider.loadEntities() threw RetrieveException: net.bbstats.framework.exception.RetrieveException: java.lang.IllegalArgumentException: Exception [EclipseLink-6168] (Eclipse Persistence Services - 2.7.5.v20191016-ea124dd158): 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="Competition.findDtosBySeason" referenceClass=Group jpql="
SELECT NEW net.bbstats.dto.CompetitionListDto(
gr,
gl.name,
se.startYear,
NULL, <--
SIZE(rd.groups),
sc.level,
scl.code,
scl.name,
tt.code,
tt.ageGroup,
tt.gender,
cm.type,
cm.name,
gc,
CASE WHEN COUNT(pa.roster.id) > 0 THEN TRUE ELSE FALSE END
)
FROM Group gr
LEFT JOIN gr.groupLabel gl
LEFT JOIN gr.participations pa
JOIN gr.round rd
JOIN rd.season se
JOIN rd.subCompetition sc
JOIN sc.subCompetitionLabels scl
JOIN sc.teamType tt
JOIN sc.competition cm
JOIN cm.geoContext gc
WHERE se.startYear = :seasonStartYear
")
at net.bbstats.view.domain.CompetitionProvider.loadEntities(CompetitionProvider.java:32)
at net.bbstats.framework.management.BaseProvider.getEntities(BaseProvider.java:77)
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:498)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:241)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:180)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:208)
at com.sun.el.parser.AstValue.getValue(AstValue.java:139)
at com.sun.el.parser.AstValue.getValue(AstValue.java:203)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
at org.jboss.weld.module.web.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at org.jboss.weld.module.web.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:115)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:200)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:187)
at javax.faces.component.UIData.getValue(UIData.java:766)
at org.primefaces.component.api.UIData.getDataModel(UIData.java:824)
at javax.faces.component.UIData.getRowCount(UIData.java:371)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:1187)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:1166)
at org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:452)
at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:383)
at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:96)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:949)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1912)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:918)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1905)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1908)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1908)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:491)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:194)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:151)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:151)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:151)
at org.omnifaces.viewhandler.OmniViewHandler.renderView(OmniViewHandler.java:121)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:126)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:223)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:671)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:55)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:360)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378)
at java.lang.Thread.run(Thread.java:748)
Замена NULL фактическим идентификатором / значением позволяет получить значения NPE.
РЕДАКТИРОВАТЬ:
2-й пример:
Caused by: Exception [EclipseLink-6168] (Eclipse Persistence Services - 2.7.5.v20191016-ea124dd158): 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="Competition.findDtosBySeason" referenceClass=Group jpql="
SELECT NEW net.bbstats.dto.TestDto(
NULL
)
FROM Group gr
")
at org.eclipse.persistence.exceptions.QueryException.prepareFailed(QueryException.java:1598)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:692)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:968)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:622)
at org.eclipse.persistence.internal.jpa.QueryImpl.getDatabaseQueryInternal(QueryImpl.java:346)
... 96 more
Caused by: java.lang.NullPointerException
at org.eclipse.persistence.queries.ConstructorReportItem.initialize(ConstructorReportItem.java:187)
at org.eclipse.persistence.queries.ReportQuery.prepare(ReportQuery.java:1105)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:673)
... 99 more
DTO:
import java.io.Serializable;
public class TestDto implements Serializable
{
private static final long serialVersionUID = 1L;
public TestDto( String test )
{
}
}
РЕДАКТИРОВАНИЕ # 2:
Caused by: Exception [EclipseLink-6168] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): 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="Competition.findDtosBySeason" referenceClass=Group jpql="
SELECT NEW net.bbstats.dto.TestDto(
NULL
)
FROM Group gr
")
at org.eclipse.persistence.exceptions.QueryException.prepareFailed(QueryException.java:1590)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:680)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:901)
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:1124)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:1144)
at org.jboss.as.jpa.container.AbstractEntityManager.createNamedQuery(AbstractEntityManager.java:99)
at net.bbstats.framework.service.Repository.findByNamedQuery(Repository.java:173)
at net.bbstats.framework.service.Repository.findByNamedQuery(Repository.java:166)
at net.bbstats.framework.service.Repository.findByNamedQuery(Repository.java:159)
at net.bbstats.framework.service.Repository.findByNamedQuery(Repository.java:140)
at net.bbstats.view.domain.CompetitionProvider.loadEntities(CompetitionProvider.java:28)
... 88 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:1059)
at org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:661)
... 99 more
ВОПРОС :
Это ошибка?
Использование EclipseLink 2.7.5
РЕДАКТИРОВАНИЕ # 2: EclipseLink версия 2.5.2 тоже не получается.