Hi Ben,
Exception got fixed after
<cache usage=""transactional"/>
tag in one of the hibernate class
was removed from hibernate mapping file . and after application was deploed in tomcat 5.0:
Also please not that, if
hibernate.cache.provider_class=net.sf.hibernate.cache.TreeCacheProvider is replaced with following(coherence caching), everything works without need to change mapping file. And I was able to see cache keys(coherence) on web console(weblogic):
hibernate.cache.provider_class=net.sf.hibernate.cache.CoherenceCacheProvider I am using hibernate 2.1.8 & JBossCache 1.2.
Here are the files:
treecache.xml(don't know whether this correct at all): <?xml version="1.0" encoding="UTF-8"?>
<server>
<classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar"/><mbean code="org.jboss.cache.TreeCache" name="jboss.cache:service=TreeCache">
<depends>jboss:service=Naming</depends>
<depends>jboss:service=TransactionManager</depends>
<!-- <attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>-->
<attribute name="IsolationLevel">REPEATABLE_READ</attribute>
<attribute name="ClusterName">TreeCache-Cluster</attribute>
<attribute name="CacheMode">REPL_SYNC</attribute>
<attribute name="SyncReplTimeout">10000</attribute>
<attribute name="LockAcquisitionTimeout">15000</attribute>
<attribute name="FetchStateOnStartup">true</attribute>
<attribute name="EvictionPolicyClass">
org.jboss.cache.eviction.LRUPolicy
</attribute>
<attribute name="EvictionPolicyConfig">
<config>
<attribute name="wakeUpIntervalSeconds">5</attribute>
</config>
</attribute>
<attribute name="ClusterConfig">
<config>
<UDP mcast_addr="224.10.10.10" mcast_port="45566"
ip_ttl="64" ip_mcast="true"
mcast_send_buf_size="150000" mcast_recv_buf_size="80000"
ucast_send_buf_size="150000" ucast_recv_buf_size="80000"
loopback="false" bind_addr="127.0.0.1"/>
<PING timeout="2000" num_initial_members="3"
up_thread="false" down_thread="false"/>
<MERGE2 min_interval="10000" max_interval="20000"/>
<FD_SOCK/>
<VERIFY_SUSPECT timeout="1500"
up_thread="false" down_thread="false"/>
<pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800"
max_xmit_size="8192" up_thread="false" down_thread="false"/>
<UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10"
down_thread="false"/>
<pbcast.STABLE desired_avg_gossip="20000"
up_thread="false" down_thread="false"/>
<FRAG frag_size="8192"
down_thread="false" up_thread="false"/>
<pbcast.GMS join_timeout="5000" join_retry_timeout="2000"
shun="true" print_local_addr="true"/>
<pbcast.STATE_TRANSFER up_thread="true" down_thread="true"/>
</config>
</attribute>
</mbean>
</server>
jdbc.properties which is used to initialize hibernate configuration with spring: jdbc.driverClassName=org.hsqldb.jdbcDriver
jdbc.url=jdbc:hsqldb:hsql://localhost:1476
jdbc.username=sa
jdbc.password=
hibernate.show_sql=true
hibernate.dialect=net.sf.hibernate.dialect.HSQLDialect
hibernate.cache.provider_class=net.sf.hibernate.cache.TreeCacheProvider
#hibernate.cache.provider_class=net.sf.hibernate.cache.CoherenceCacheProvider
hibernate.c3p0.minPoolSize=5
hibernate.c3p0.maxPoolSize=20
hibernate.c3p0.timeout=1800
hibernate.c3p0.max_statement=50
applicationContext.xml of spring: <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<!--
- Application context definition for Petclinic on Apache OJB.
-->
<beans>
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location"><value>/WEB-INF/jdbc.properties</value></property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"><value>${jdbc.driverClassName}</value></property>
<property name="url"><value>${jdbc.url}</value></property>
<property name="username"><value>${jdbc.username}</value></property>
<property name="password"><value>${jdbc.password}</value></property>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
<property name="dataSource"><ref local="dataSource"/></property>
<property name="mappingResources">
<value>vz/esm/vcm/core/vcm-core.hbm.xml</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.c3p0.minPoolSize">${hibernate.c3p0.minPoolSize}</prop>
<prop key="hibernate.c3p0.maxPoolSize">${hibernate.c3p0.maxPoolSize}</prop>
<prop key="hibernate.c3p0.timeout">${hibernate.c3p0.timeout}</prop>
<prop key="hibernate.c3p0.max_statement">${hibernate.c3p0.max_statement}</prop>
<prop key="hibernate.cache.provider_class">${hibernate.cache.provider_class}</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
<property name="sessionFactory"><ref local="sessionFactory"/></property>
</bean>
<bean id="DMS" class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target"><ref local="compDMSTarget"/></property>
<property name="interceptorNames" >
<list>
<value>pmTransactionInterceptor</value>
<value>hibernateInterceptor</value>
</list>
</property>
</bean>
<bean id="compDMS" parent="DMS" >
<property name="target"><ref local="compDMSTarget"/></property>
</bean>
<bean id="compDMSTarget" class="vz.esm.vcm.service.ComponentDMS">
<property name="sessionFactory"><ref local="sessionFactory"/></property>
</bean>
<bean id="pmTransactionInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor">
<property name="transactionManager"><ref bean="transactionManager"/></property>
<property name="transactionAttributes">
<props>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<bean id="hibernateInterceptor" class="org.springframework.orm.hibernate.HibernateInterceptor">
<property name="sessionFactory"><ref bean="sessionFactory"/></property>
</bean>
</beans>
part of hibernate mapping file is here: <class name="Component" table="Component" discriminator-value="base">
<cache usage="transactional" />
<id name="uuid" column="uuid" type="java.lang.String">
<generator class="uuid.string"/>
</id>
<discriminator column="type"/>
.......
<set name="contacts" table="contact" lazy="true" cascade="all">
<key column="component_uuid"/>
<one-to-many class="Contact"/>
</set>
</class>
........
........
<class name="Contact" table="Contact">
<!--following line commented out for jbosscache. But works in coherence cache-->
<!--<cache usage="transactional" /> -->
<id name="uuid" column="uuid" type="java.lang.String">
<generator class="uuid.string"/>
</id>
........
</class>
"Component" class has multiple "Contact"s (one to many relation)
Does this one to many relationship has anything to do with nullpointer exception? Also I am not able to view contents of cache by running: build run.aop.demo Also in tomcat nullpointerexception stacktrace was different from weblogic with same mapping file (note:I am not sure whether, I tried different verion of jbosscache & hibernate in weblogic 8.1. ).
here it is:
ct contacts0_ where contacts0_.role_uuid=?
net.sf.hibernate.cache.CacheException: org.jboss.util.NestedRuntimeException: -
nested throwable: (java.lang.NullPointerException)
at net.sf.hibernate.cache.TreeCache.put(TreeCache.java:70)
at net.sf.hibernate.cache.TransactionalCache.put(TransactionalCache.java
:44)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:2
227)
at net.sf.hibernate.loader.Loader.initializeEntitiesAndCollections(Loade
r.java:315)
at net.sf.hibernate.loader.Loader.doQuery(Loader.java:305)
at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections
(Loader.java:133)
at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:990)
at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:965)
at net.sf.hibernate.loader.OneToManyLoader.initialize(OneToManyLoader.ja
va:93)
at net.sf.hibernate.collection.AbstractCollectionPersister.initialize(Ab
stractCollectionPersister.java:288)
at net.sf.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.ja
va:3303)
at net.sf.hibernate.collection.PersistentCollection.forceInitialization(
PersistentCollection.java:336)
at net.sf.hibernate.impl.SessionImpl.initializeNonLazyCollections(Sessio
nImpl.java:3156)
at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections
(Loader.java:138)
at net.sf.hibernate.loader.Loader.doList(Loader.java:1033)
at net.sf.hibernate.loader.Loader.list(Loader.java:1024)
at net.sf.hibernate.hql.QueryTranslator.list(QueryTranslator.java:854)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1553)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:39)
at vz.esm.vcm.service.ComponentDMS.executeNamedQuery(ComponentDMS.java:1
29)
at vz.esm.vcm.service.ComponentDMS.getSMETitleList(ComponentDMS.java:153
)
at vz.esm.vcm.web.CreateAtomicElement.populateSMETitleList(CreateAtomicE
lement.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:255)
at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:553)
at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:54)
at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:577)
at ognl.ASTMethod.getValueBody(ASTMethod.java:84)
at ognl.SimpleNode.getValue(SimpleNode.java:129)
at ognl.Ognl.getValue(Ognl.java:335)
at ognl.Ognl.getValue(Ognl.java:310)
at org.apache.tapestry.binding.ExpressionBinding.resolveProperty(Express
ionBinding.java:201)
at org.apache.tapestry.binding.ExpressionBinding.getObject(ExpressionBin
ding.java:194)
at org.apache.tapestry.binding.AbstractBinding.getObject(AbstractBinding
.java:208)
at org.apache.tapestry.param.AbstractParameterConnector.getBindingValue(
AbstractParameterConnector.java:105)
at org.apache.tapestry.param.ObjectParameterConnector.setParameter(Objec
tParameterConnector.java:53)
at org.apache.tapestry.param.ParameterManager.setParameters(ParameterMan
ager.java:105)
at org.apache.tapestry.AbstractComponent.prepareForRender(AbstractCompon
ent.java:898)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:8
53)
at org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.ja
va:624)
at org.apache.tapestry.components.Foreach.renderComponent(Foreach.java:1
22)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:8
57)
at org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.ja
va:624)
at org.apache.tapestry.form.Form.renderComponent(Form.java:362)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:8
57)
at org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.ja
va:624)
at org.apache.tapestry.html.Body.renderComponent(Body.java:269)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:8
57)
at org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:
118)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:8
57)
at org.apache.tapestry.AbstractPage.renderPage(AbstractPage.java:300)
at org.apache.tapestry.engine.RequestCycle.renderPage(RequestCycle.java:
371)
at org.apache.tapestry.engine.AbstractEngine.renderResponse(AbstractEngi
ne.java:732)
at org.apache.tapestry.engine.PageService.service(PageService.java:77)
at org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java
:872)
at org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.j
ava:197)
at org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:
158)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doF
ilterInternal(OpenSessionInViewFilter.java:117)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
equestFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:186)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(Standard
ContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:16
0)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:683)
at java.lang.Thread.run(Thread.java:534)
Caused by: org.jboss.util.NestedRuntimeException: - nested throwable: (java.lang
.NullPointerException)
at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:3083)
at org.jboss.cache.TreeCache.put(TreeCache.java:1758)
at net.sf.hibernate.cache.TreeCache.put(TreeCache.java:67)
... 89 more
Caused by: java.lang.NullPointerException
at org.jboss.cache.eviction.LRUPolicy.nodeAdded(LRUPolicy.java:54)
at org.jboss.cache.eviction.LRUPolicy.nodeCreated(LRUPolicy.java:92)
at org.jboss.cache.TreeCache.notifyNodeCreated(TreeCache.java:3129)
at org.jboss.cache.interceptors.CreateIfNotExistsInterceptor.createNode(
CreateIfNotExistsInterceptor.java:71)
at org.jboss.cache.interceptors.CreateIfNotExistsInterceptor.invoke(Crea
teIfNotExistsInterceptor.java:43)
at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:40)
at org.jboss.cache.interceptors.ReplicationInterceptor.invoke(Replicatio
nInterceptor.java:51)
at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:3078)
... 91 more
(web.FlushingSpringSessionInViewFilter 134 ) Using SessionFactory 'sessionFactor
y' for OpenSessionInViewFilter
Thanks in Advance,
Hari
