5:07 a.m.
What is the default scope of a jpa entity manager in Seam? My experience is that it is
CONVERSATION. Is that correct?
I often get an error message on the console that the transaction can not be started, when
I access a page, which contains no component reference in the cnversation scope. The
reason is somehow the component lookup for entityManager in default scope (CONVERSATION)
fails, because no conversation has started yet. As soon as a conversation has been started
in my application, the exception disappears.
java.lang.IllegalStateException: Could not start transaction
| at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:571
| )
| at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsBeforePhase(Se
| amPhaseListener.java:307)
| at org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseList
| ener.java:142)
| at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.ja
| va:116)
| at org.ajax4jsf.resource.ResourceLifecycle.invokePhaseListener(ResourceL
| ifecycle.java:201)
| at org.ajax4jsf.resource.ResourceLifecycle.processPhaseListeners(Resourc
| eLifecycle.java:177)
| at org.ajax4jsf.resource.ResourceLifecycle.send(ResourceLifecycle.java:1
| 47)
| at org.ajax4jsf.resource.InternetResourceService.load(InternetResourceSe
| rvice.java:336)
| at org.ajax4jsf.cache.LRUMapCache.load(LRUMapCache.java:116)
| at org.ajax4jsf.cache.LRUMapCache.get(LRUMapCache.java:87)
| at org.ajax4jsf.resource.InternetResourceService.serviceResource(Interne
| tResourceService.java:198)
| at org.ajax4jsf.resource.InternetResourceService.serviceResource(Interne
| tResourceService.java:144)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:265)
| at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
| .java:69)
| at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
| .java:69)
| at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
| icationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
| ilterChain.java:206)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
| lter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
| icationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
| ilterChain.java:206)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
| alve.java:230)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
| alve.java:175)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
| yAssociationValve.java:179)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
| e.java:84)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
| ava:127)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
| ava:102)
| at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC
| onnectionValve.java:157)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
| ve.java:109)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
| a:262)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
| :844)
| at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
| ss(Http11Protocol.java:583)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
| 6)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: org.springframework.transaction.CannotCreateTransactionException: Cou
| ld not open JPA EntityManager for transaction; nested exception is java.lang.Ill
| egalArgumentException: Instance must not be null
| at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransact
| ionManager.java:374)
| at org.springframework.transaction.support.AbstractPlatformTransactionMa
| nager.getTransaction(AbstractPlatformTransactionManager.java:350)
| at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.j
| ava:74)
| at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:566
| )
| ... 35 more
| Caused by: java.lang.IllegalArgumentException: Instance must not be null
| at org.springframework.util.Assert.notNull(Assert.java:112)
| at org.springframework.util.ClassUtils.getAllInterfaces(ClassUtils.java:
| 703)
| at org.jboss.seam.ioc.spring.SeamManagedEntityManagerFactory.createEntit
| yManager(SeamManagedEntityManagerFactory.java:61)
| at org.springframework.orm.jpa.JpaTransactionManager.createEntityManager
| ForTransaction(JpaTransactionManager.java:391)
| at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransact
| ionManager.java:315)
| ... 38 more
| 12:02:31,191 ERROR [SeamPhaseListener] swallowing exception
| java.lang.IllegalStateException: Could not start transaction
| at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:571
| )
| at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsBeforePhase(Se
| amPhaseListener.java:307)
| at org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseList
| ener.java:142)
| at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.ja
| va:116)
| at org.ajax4jsf.resource.ResourceLifecycle.invokePhaseListener(ResourceL
| ifecycle.java:201)
| at org.ajax4jsf.resource.ResourceLifecycle.processPhaseListeners(Resourc
| eLifecycle.java:177)
| at org.ajax4jsf.resource.ResourceLifecycle.send(ResourceLifecycle.java:1
| 47)
| at org.ajax4jsf.resource.InternetResourceService.load(InternetResourceSe
| rvice.java:336)
| at org.ajax4jsf.cache.LRUMapCache.load(LRUMapCache.java:116)
| at org.ajax4jsf.cache.LRUMapCache.get(LRUMapCache.java:87)
| at org.ajax4jsf.resource.InternetResourceService.serviceResource(Interne
| tResourceService.java:198)
| at org.ajax4jsf.resource.InternetResourceService.serviceResource(Interne
| tResourceService.java:144)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:265)
| at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
| .java:69)
| at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
| .java:69)
| at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
| icationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
| ilterChain.java:206)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
| lter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
| icationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
| ilterChain.java:206)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
| alve.java:230)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
| alve.java:175)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
| yAssociationValve.java:179)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
| e.java:84)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
| ava:127)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
| ava:102)
| at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC
| onnectionValve.java:157)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
| ve.java:109)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
| a:262)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
| :844)
| at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
| ss(Http11Protocol.java:583)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
| 6)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: org.springframework.transaction.CannotCreateTransactionException: Cou
| ld not open JPA EntityManager for transaction; nested exception is java.lang.Ill
| egalArgumentException: Instance must not be null
| at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransact
| ionManager.java:374)
| at org.springframework.transaction.support.AbstractPlatformTransactionMa
| nager.getTransaction(AbstractPlatformTransactionManager.java:350)
| at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.j
| ava:74)
| at org.jboss.seam.jsf.SeamPhaseListener.begin(SeamPhaseListener.java:566
| )
| ... 35 more
| Caused by: java.lang.IllegalArgumentException: Instance must not be null
| at org.springframework.util.Assert.notNull(Assert.java:112)
| at org.springframework.util.ClassUtils.getAllInterfaces(ClassUtils.java:
| 703)
| at org.jboss.seam.ioc.spring.SeamManagedEntityManagerFactory.createEntit
| yManager(SeamManagedEntityManagerFactory.java:61)
| at org.springframework.orm.jpa.JpaTransactionManager.createEntityManager
| ForTransaction(JpaTransactionManager.java:391)
| at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransact
| ionManager.java:315)
| ... 38 more
I am using Seam together with Spring. application-context.xml
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
| <!-- <property name="dataSource" ref="dataSource"/>
-->
| <property name="persistenceUnitName" value="asap"/>
| </bean>
|
| <bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
| <!-- Be sure to specify the SeamManagedEntityManagerFactory since that will
manage the EM that will be
| beginning and ending transactions.-->
| <property name="entityManagerFactory"
ref="seamEntityManagerFactory" />
| </bean>
|
| <tx:annotation-driven proxy-target-class="true" />
|
| <seam:configure-scopes />
| <bean
|
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor">
| <!-- Because we have multiple EntityManagerFactories in this applicaitonContext
identify the
| SeamManagedEntityManagerFactory as the default -->
| <property name="defaultPersistenceUnitName"
value="persistenceContextName" />
| </bean>
|
| <!-- EMF that wraps a Seam Managed EM instance for use in Spring -->
| <bean id="seamEntityManagerFactory"
class="org.jboss.seam.ioc.spring.SeamManagedEntityManagerFactoryBean">
| <!-- The Seam managed-persistence-context component name. -->
| <property name="persistenceContextName" value="entityManager"
/>
| <!-- Optionally provide a unit name. If not specified the default would be the
persistenceContextName -->
| <property name="persistenceUnitName"
value="persistenceContextName" />
| </bean>
components.xml
<core:init debug="true" />
|
| <core:manager conversation-timeout="120000"
| concurrent-request-timeout="500" conversation-id-parameter="cid"
/>
|
| <persistence:managed-persistence-context name="entityManager"
| auto-create="true"
entity-manager-factory="#{entityManagerFactory}" />
|
|
| <spring:context-loader>
| <spring:config-locations>
| <value>classpath:/META-INF/web-context.xml</value>
| <value>classpath:/META-INF/core-custom-context.xml</value>
| <value>classpath:/META-INF/application-context.xml</value>
| </spring:config-locations>
| </spring:context-loader>
|
| <spring:spring-transaction
| platform-transaction-manager="#{transactionManager}" />
|
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