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POEntityManagerFactory error on Websphere
 

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    <p>I have a very weird problem. Have an application using Hibernate and spring.I have an entitymanger defined which uses a JNDI lookup .It looks something like this</p> <pre><code>&lt;bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="persistenceUnitName" value="ConfigAPPPersist" /&gt; &lt;property name="jpaVendorAdapter"&gt; &lt;bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"&gt; &lt;property name="showSql" value="true" /&gt; &lt;property name="generateDdl" value="false" /&gt; &lt;property name="databasePlatform" value="org.hibernate.dialect.Oracle9Dialect" /&gt; &lt;/bean&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="dataSource" class="org.springframework.jdbc.datasource.WebSphereDataSourceAdapter"&gt; &lt;property name="targetDataSource"&gt; &lt;bean class="org.springframework.jndi.JndiObjectFactoryBean"&gt; &lt;property name="jndiName" value="jdbc/pmp" /&gt; &lt;/bean&gt; &lt;/property&gt; &lt;/bean&gt; </code></pre> <p>This application runs fine in DEV. But when we move to higher envs the team that deploys this application does it successfully initially but after a few restarts of the application the entitymanager starts giving this problem</p> <pre> Caused by: javax.persistence.PersistenceException: [PersistenceUnit: ConfigAPPPersist] Unable to build EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:132) at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:224) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:291) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334) ... 32 more Caused by: org.hibernate.MappingException: **property mapping has wrong number of columns**: com.***.***.jpa.marketing.entity.MarketBrands.$performasure_j2eeInfo type: object </pre> <p>Now you would say this is pretty obvious the entity MarketBrands is incorrect. But its not it maps to the table just fine. And the same code works on DEV.</p> <p>Also the jndi cannot be incorrect since it deploys and works fine initially but throws uo this error after a restart.</p> <p>This is weird and not very logical. But if someone has faced this or has any idea on what might be causing this Please!! help</p> <p>The persistence.xml for the persitence unit has very little</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"&gt; &lt;persistence-unit name="ConfigAPPPersist"&gt; &lt;!-- commented code --&gt; &lt;/persistence-unit&gt; &lt;/persistence&gt; </code></pre>
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