Hi ,
I get this error when starting my tomcat server . Pls help .My tables_hbm.xml looks like this :

tables_hbm.xml


<class name="com.liferay.portal.model.impl.ReleaseImpl" table="Release_">
<cache usage="read-write" />
<id name="releaseId" type="java.lang.String">
<generator class="assigned" />
</id>
<property name="createDate" />
<property name="modifiedDate" />
<property name="buildNumber" type="com.liferay.util.dao.hibernate.IntegerType" />
<property name="buildDate" />
</class>


and we have the same data types in java also .

Pls help


ERROR :

Caught HibernateException. Unknown entity: com.liferay.portal.model.impl.ReleaseImpl
08:20:11,591 ERROR [MainServlet:145] com.liferay.portal.struts.ActionException: com.liferay.portal.struts.ActionException: com.liferay.portal.SystemEx
ception: org.hibernate.MappingException: Unknown entity: com.liferay.portal.model.impl.ReleaseImpl
at com.liferay.portal.events.EventsProcessor._process(EventsProcessor.java:155)
at com.liferay.portal.events.EventsProcessor.process(EventsProcessor.java:76)
at com.liferay.portal.servlet.MainServlet.init(MainServlet.java:138)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:608)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Caused by: com.liferay.portal.struts.ActionException: com.liferay.portal.SystemException: org.hibernate.MappingException: Unknown entity: com.liferay.
portal.model.impl.ReleaseImpl
at com.liferay.portal.events.StartupAction.run(StartupAction.java:155)
at com.liferay.portal.events.EventsProcessor._process(EventsProcessor.java:152)
... 29 more

Chandra .

You have to specify the column names of your table with each <property> tag just like:

<property name="createDate">
<column name="col_name"/>
</property>

Also you have to specify column name with <id> tag:

<id name="releaseId" column="col_name" >
.
.
</id>

And I guess you have corresponding java class having these properties.
Please try this.