# Java heap space byte\[\] / Lob

**URL:** <https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449>\
**Category:** Hibernate ORM\
**Created:** [March 27, 2023, 6:03pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449 "2023-03-27T18:03:01Z")\
**Posts on this page:** 11\
**Page:** 1

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 27, 2023, 6:03pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/1 "2023-03-27T18:03:01Z")

</div>

Hi,

I´m trying to load many pictures on my web application.  
I´m using Omnifaces for my Web Application to show the picture.

But it seems loading the pictures takes a lot of time and sometimes I got also a Java heap space error

I store the picture content in this field in my entity:

```auto
||@Lob|
|---|---|
||@Basic(fetch=FetchType.LAZY)|
||@Column(name = file_content)|
||private byte[] fileContent;|

```

Is this correct?

---

<div class="post-metadata">

**Author:** ![beikov](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.hibernate.org/beikov/32/258_2.png) [@beikov](https://discourse.hibernate.org/u/beikov)\
**Post date:** [March 27, 2023, 9:28pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/2 "2023-03-27T21:28:55Z")

</div>

If you use a `byte[]`, your Object will contain the whole object in memory. `@Basic(fetch=FetchType.LAZY)` only works if you enable byte code enhancement. Try using `java.sql.Blob` instead to stream content only when you need to.

---

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 28, 2023, 9:01am UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/3 "2023-03-28T09:01:41Z")

</div>

Thanks - I´ve changed it to:

```auto
@Lob
@Basic(fetch = FetchType.LAZY)
@Column(name = file_content, columnDefinition = LONGBLOB)|
private Blob fileContent;

```

But I got also this exception:  
` Could not read entity state from ResultSet : EntityKey[com.mycompany.MyEntity`

---

<div class="post-metadata">

**Author:** ![beikov](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.hibernate.org/beikov/32/258_2.png) [@beikov](https://discourse.hibernate.org/u/beikov)\
**Post date:** [March 28, 2023, 9:19am UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/4 "2023-03-28T09:19:24Z")

</div>

You’ll have to show me the full stack trace

---

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 30, 2023, 2:01pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/5 "2023-03-30T14:01:29Z")

</div>

Sure…

```auto
15:52:03,321 WARN [org.jboss.jca.core.connectionmanager.listener.TxConnectionListener] (default task-3) IJ000305: Connection error occured: org.jboss.jca.core.connectionmanager.listener.TxConnectionListener@10b6c818[state=NORMAL managed connection=org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@289281c2 connection handles=1 lastReturned=1680184319066 lastValidated=1680184292698 lastCheckedOut=1680184319609 trackByTx=false pool=org.jboss.jca.core.connectionmanager.pool.strategy.OnePool@1bb05c1f mcp=SemaphoreConcurrentLinkedQueueManagedConnectionPool@170f40[pool=gixxpicgallery] xaResource=LocalXAResourceImpl@fed98b0[connectionListener=10b6c818 connectionManager=62c6a09d warned=false currentXid=null productName=MySQL productVersion=8.0.16 jndiName=java:jboss/datasources/gixxpicgallery] txSync=null]: javax.resource.spi.ResourceAdapterInternalException: Unexpected error
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.broadcastConnectionError(BaseWrapperManagedConnection.java:682)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.connectionError(BaseWrapperManagedConnection.java:648)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedConnection.checkException(WrappedConnection.java:2041)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedStatement.checkException(WrappedStatement.java:1436)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedResultSet.checkException(WrappedResultSet.java:5986)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedResultSet.getBlob(WrappedResultSet.java:785)
	at org.hibernate@5.3.28.Final//org.hibernate.type.descriptor.sql.BlobTypeDescriptor$1.doExtract(BlobTypeDescriptor.java:48)
	at org.hibernate@5.3.28.Final//org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329)
	at org.hibernate@5.3.28.Final//org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:3026)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.loadFromResultSet(EntityReferenceInitializerImpl.java:333)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.hydrateEntityState(EntityReferenceInitializerImpl.java:261)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:109)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:254)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:122)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:107)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:191)
	at org.hibernate@5.3.28.Final//org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4290)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:604)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:572)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:226)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:350)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:127)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:93)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.fireLoadNoChecks(SessionImpl.java:1277)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1149)
	at org.hibernate@5.3.28.Final//org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:682)
	at org.hibernate@5.3.28.Final//org.hibernate.type.EntityType.resolve(EntityType.java:464)
	at org.hibernate@5.3.28.Final//org.hibernate.type.ManyToOneType.resolve(ManyToOneType.java:239)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:205)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:160)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1172)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.processResultSet(Loader.java:1022)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doQuery(Loader.java:960)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:351)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doList(Loader.java:2787)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doList(Loader.java:2770)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2604)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.list(Loader.java:2599)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:505)
	at org.hibernate@5.3.28.Final//org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:395)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:220)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.list(SessionImpl.java:1526)
	at org.hibernate@5.3.28.Final//org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1598)
	at org.hibernate@5.3.28.Final//org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1566)
	at org.hibernate@5.3.28.Final//org.hibernate.query.Query.getResultList(Query.java:132)
	at org.hibernate@5.3.28.Final//org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:74)
	at org.jboss.as.jpa@26.1.3.Final//org.jboss.as.jpa.container.TypedQueryNonTxInvocationDetacher.getResultList(TypedQueryNonTxInvocationDetacher.java:58)
	at deployment.myproject.war//com.myproject.gallery.controller.portal.PicAlbumForPortalShowTestController$1.load(PicAlbumForPortalShowTestController.java:216)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.loadLazyData(DataScrollerRenderer.java:239)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.loadChunk(DataScrollerRenderer.java:202)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeList(DataScrollerRenderer.java:162)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeMarkup(DataScrollerRenderer.java:142)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeEnd(DataScrollerRenderer.java:66)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:600)
	at deployment.myproject.war//org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:85)
	at deployment.myproject.war//org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:67)
	at deployment.myproject.war//org.primefaces.component.outputpanel.OutputPanelRenderer.encodeEnd(OutputPanelRenderer.java:57)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:600)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1655)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:628)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:159)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1457)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIForm.visitTree(UIForm.java:355)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:413)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:321)
	at deployment.myproject.war//org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:65)
	at javax.faces.api@3.1.0.SP01//javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:228)
	at deployment.myproject.war//org.omnifaces.context.OmniPartialViewContext.processPartial(OmniPartialViewContext.java:122)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1102)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1648)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:442)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:170)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at deployment.myproject.war//org.omnifaces.viewhandler.OmniViewHandler.renderView(OmniViewHandler.java:151)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:102)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:199)
	at javax.faces.api@3.1.0.SP01//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:708)
	at javax.faces.api@3.1.0.SP01//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
	at deployment.myproject.war//org.omnifaces.filter.CacheControlFilter.doFilter(CacheControlFilter.java:239)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:183)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.websocket@2.2.19.Final//io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:173)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:183)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:123)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
	at deployment.myproject.war//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at deployment.myproject.war//org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at deployment.myproject.war//org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at deployment.myproject.war//org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at deployment.myproject.war//org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at deployment.myproject.war//org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at deployment.myproject.war//org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at org.wildfly.security.elytron-web.undertow-server@1.10.1.Final//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.lambda$handleRequest$1(ElytronRunAsHandler.java:68)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.FlexibleIdentityAssociation.runAsFunctionEx(FlexibleIdentityAssociation.java:103)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.Scoped.runAsFunctionEx(Scoped.java:161)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.Scoped.runAs(Scoped.java:73)
	at org.wildfly.security.elytron-web.undertow-server@1.10.1.Final//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.handleRequest(ElytronRunAsHandler.java:67)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.core@2.2.19.Final//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.core@2.2.19.Final//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at org.wildfly.security.elytron-web.undertow-server-servlet@1.10.1.Final//org.wildfly.elytron.web.undertow.server.servlet.CleanUpHandler.handleRequest(CleanUpHandler.java:38)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:275)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:255)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100)
	at io.undertow.core@2.2.19.Final//io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
	at io.undertow.core@2.2.19.Final//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at org.jboss.xnio@3.8.7.Final//org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1282)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.OutOfMemoryError: Java heap space

```

---

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 30, 2023, 2:02pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/6 "2023-03-30T14:02:00Z")

</div>

```auto
15:52:03,324 INFO [org.jboss.jca.core.connectionmanager.listener.TxConnectionListener] (default task-3) IJ000302: Unregistered handle that was not registered: org.jboss.jca.adapters.jdbc.jdk8.WrappedConnectionJDK8@1d3be8a9 for managed connection: org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@289281c2
15:52:03,325 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-3) SQL Error: 0, SQLState: null
15:52:03,325 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-3) Error
15:52:03,326 INFO [org.hibernate.event.internal.DefaultLoadEventListener] (default task-3) HHH000327: Error performing load command : org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet : EntityKey[com.myproject.sharedEntity.model.normal.StorageAttachment#2173]
15:52:03,327 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-3) Error Rendering View[/public/picgallery/picAlbumPageTest.xhtml]: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet : EntityKey[com.myproject.sharedEntity.model.normal.StorageAttachment#2173]
	at org.hibernate@5.3.28.Final//org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
	at org.hibernate@5.3.28.Final//org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1575)
	at org.hibernate@5.3.28.Final//org.hibernate.query.Query.getResultList(Query.java:132)
	at org.hibernate@5.3.28.Final//org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:74)
	at org.jboss.as.jpa@26.1.3.Final//org.jboss.as.jpa.container.TypedQueryNonTxInvocationDetacher.getResultList(TypedQueryNonTxInvocationDetacher.java:58)
	at deployment.myproject.war//com.myproject.gallery.controller.portal.PicAlbumForPortalShowTestController$1.load(PicAlbumForPortalShowTestController.java:216)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.loadLazyData(DataScrollerRenderer.java:239)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.loadChunk(DataScrollerRenderer.java:202)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeList(DataScrollerRenderer.java:162)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeMarkup(DataScrollerRenderer.java:142)
	at deployment.myproject.war//org.primefaces.component.datascroller.DataScrollerRenderer.encodeEnd(DataScrollerRenderer.java:66)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:600)
	at deployment.myproject.war//org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:85)
	at deployment.myproject.war//org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:67)
	at deployment.myproject.war//org.primefaces.component.outputpanel.OutputPanelRenderer.encodeEnd(OutputPanelRenderer.java:57)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:600)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1655)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:628)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:159)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1457)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIForm.visitTree(UIForm.java:355)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.visitTree(UIComponent.java:1469)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:413)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:321)
	at deployment.myproject.war//org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:65)
	at javax.faces.api@3.1.0.SP01//javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:228)
	at deployment.myproject.war//org.omnifaces.context.OmniPartialViewContext.processPartial(OmniPartialViewContext.java:122)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1102)
	at javax.faces.api@3.1.0.SP01//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1648)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:442)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:170)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at deployment.myproject.war//org.omnifaces.viewhandler.OmniViewHandler.renderView(OmniViewHandler.java:151)
	at javax.faces.api@3.1.0.SP01//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:102)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76)
	at com.sun.jsf-impl@2.3.17.SP01//com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:199)
	at javax.faces.api@3.1.0.SP01//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:708)
	at javax.faces.api@3.1.0.SP01//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
	at deployment.myproject.war//org.omnifaces.filter.CacheControlFilter.doFilter(CacheControlFilter.java:239)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:183)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.websocket@2.2.19.Final//io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:173)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:183)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:123)
	at deployment.myproject.war//org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
	at deployment.myproject.war//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at deployment.myproject.war//org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at deployment.myproject.war//org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at deployment.myproject.war//org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at deployment.myproject.war//org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at deployment.myproject.war//org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at deployment.myproject.war//org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
	at deployment.myproject.war//org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at deployment.myproject.war//org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at org.wildfly.security.elytron-web.undertow-server@1.10.1.Final//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.lambda$handleRequest$1(ElytronRunAsHandler.java:68)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.FlexibleIdentityAssociation.runAsFunctionEx(FlexibleIdentityAssociation.java:103)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.Scoped.runAsFunctionEx(Scoped.java:161)
	at org.wildfly.security.elytron-base@1.19.1.Final//org.wildfly.security.auth.server.Scoped.runAs(Scoped.java:73)
	at org.wildfly.security.elytron-web.undertow-server@1.10.1.Final//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.handleRequest(ElytronRunAsHandler.java:67)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.core@2.2.19.Final//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.core@2.2.19.Final//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at org.wildfly.security.elytron-web.undertow-server-servlet@1.10.1.Final//org.wildfly.elytron.web.undertow.server.servlet.CleanUpHandler.handleRequest(CleanUpHandler.java:38)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
	at io.undertow.core@2.2.19.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:275)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at org.wildfly.extension.undertow@26.1.3.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1544)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:255)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79)
	at io.undertow.servlet@2.2.19.Final//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100)
	at io.undertow.core@2.2.19.Final//io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
	at io.undertow.core@2.2.19.Final//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at org.jboss.xnio@3.8.7.Final//org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1282)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet : EntityKey[com.myproject.sharedEntity.model.normal.StorageAttachment#2173]
	at org.hibernate@5.3.28.Final//org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.loadFromResultSet(EntityReferenceInitializerImpl.java:348)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.hydrateEntityState(EntityReferenceInitializerImpl.java:261)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:109)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:254)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:122)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:107)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:191)
	at org.hibernate@5.3.28.Final//org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4290)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:604)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:572)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:226)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:350)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:127)
	at org.hibernate@5.3.28.Final//org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:93)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.fireLoadNoChecks(SessionImpl.java:1277)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1149)
	at org.hibernate@5.3.28.Final//org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:682)
	at org.hibernate@5.3.28.Final//org.hibernate.type.EntityType.resolve(EntityType.java:464)
	at org.hibernate@5.3.28.Final//org.hibernate.type.ManyToOneType.resolve(ManyToOneType.java:239)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:205)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:160)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1172)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.processResultSet(Loader.java:1022)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doQuery(Loader.java:960)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:351)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doList(Loader.java:2787)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.doList(Loader.java:2770)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2604)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.Loader.list(Loader.java:2599)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:505)
	at org.hibernate@5.3.28.Final//org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:395)
	at org.hibernate@5.3.28.Final//org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:220)
	at org.hibernate@5.3.28.Final//org.hibernate.internal.SessionImpl.list(SessionImpl.java:1526)
	at org.hibernate@5.3.28.Final//org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1598)
	at org.hibernate@5.3.28.Final//org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1566)
	... 132 more
Caused by: java.sql.SQLException: Error
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedConnection.checkException(WrappedConnection.java:2049)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedStatement.checkException(WrappedStatement.java:1436)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedResultSet.checkException(WrappedResultSet.java:5986)
	at org.jboss.ironjacamar.jdbcadapters@1.5.3.Final//org.jboss.jca.adapters.jdbc.WrappedResultSet.getBlob(WrappedResultSet.java:785)
	at org.hibernate@5.3.28.Final//org.hibernate.type.descriptor.sql.BlobTypeDescriptor$1.doExtract(BlobTypeDescriptor.java:48)
	at org.hibernate@5.3.28.Final//org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243)
	at org.hibernate@5.3.28.Final//org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329)
	at org.hibernate@5.3.28.Final//org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:3026)
	at org.hibernate@5.3.28.Final//org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.loadFromResultSet(EntityReferenceInitializerImpl.java:333)
	... 166 more

```

---

<div class="post-metadata">

**Author:** ![beikov](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.hibernate.org/beikov/32/258_2.png) [@beikov](https://discourse.hibernate.org/u/beikov)\
**Post date:** [March 30, 2023, 2:44pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/7 "2023-03-30T14:44:55Z")

</div>

Looks like a transaction timeout or something like that. The exception is thrown by Ironjacamar, but there are no details about why it can’t fetch the data. If the first exception you posted is part of your problem, then you have your answer already `java.lang.OutOfMemoryError: Java heap space`

You are simply out of memory. Increase your heap size.

---

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 30, 2023, 2:47pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/8 "2023-03-30T14:47:37Z")

</div>

```auto
You are simply out of memory. Increase your heap size.

```

This is always the easiest solution.  
This is correct for the property?

```auto
@Lob
@Basic(fetch = FetchType.LAZY)
@Column(name = file_content, columnDefinition = LONGBLOB)|
private Blob fileContent;

```

---

<div class="post-metadata">

**Author:** ![beikov](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.hibernate.org/beikov/32/258_2.png) [@beikov](https://discourse.hibernate.org/u/beikov)\
**Post date:** [March 30, 2023, 3:00pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/9 "2023-03-30T15:00:03Z")

</div>

I don’t understand your question. There is no right or wrong. It depends on your needs. Create a heap dump on error and look into the heap dump to understand what data is in your heap and why you ran into this situation.

---

<div class="post-metadata">

**Author:** ![vished2000](https://avatars.discourse-cdn.com/v4/letter/v/ba8739/32.png) [@vished2000](https://discourse.hibernate.org/u/vished2000)\
**Post date:** [March 30, 2023, 3:04pm UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/10 "2023-03-30T15:04:11Z")

</div>

My question is, if this the right implementation for blobs?  
I never used with Blobs before 🙂

---

<div class="post-metadata">

**Author:** ![beikov](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.hibernate.org/beikov/32/258_2.png) [@beikov](https://discourse.hibernate.org/u/beikov)\
**Post date:** [March 31, 2023, 6:15am UTC](https://discourse.hibernate.org/t/java-heap-space-byte-lob/7449/11 "2023-03-31T06:15:26Z")

</div>

Blobs are always lazy, so you don’t need to use `@Basic(fetch = FetchType.LAZY)`. Other than that, it is a correct mapping.