title: Could not initialize proxy - No Session again
body: <p>I get these error log when viewing a page</p>
  
  <pre>
  ERROR [TP-Processor11] (LazyInitializationException.java:42) - could not initialize proxy - no Session
  org.hibernate.LazyInitializationException: could not initialize proxy - no Session
      at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:132)
      at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:174)
      at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
      at org.osmoz.contents.model.enm.ContentType_$$_javassist_71.getDefaultShortMode(ContentType_$$_javassist_71.java)
      at org.osmoz.contents.web.tapestry.components.EnmContentZone.getTemplate(EnmContentZone.java:67)
      at org.osmoz.contents.web.tapestry.base.AbstractRawContentZone.getContent(AbstractRawContentZone.java:67)
      at $PropertyConduit_1276091af82.get($PropertyConduit_1276091af82.java)
      at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.java:58)
      at org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl$1.read(InternalComponentResourcesImpl.java:510)
      at org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl$1.read(InternalComponentResourcesImpl.java:496)
      at org.apache.tapestry5.corelib.components.OutputRaw._$read_parameter_value(OutputRaw.java)
      at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputRaw.java:43)
      at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputRaw.java)
      at
  </pre>
  
  <p>I know the problem is Session has been closed. But I really don't know why this error occur not so often that why I don't know the root cause is.</p>
  
  <p><strong>Enviroment:</strong> </p>
  
  <p>Tapestry5, JPA, Hibernate 3.3.2.GA</p>
  
  <p>I've set</p>
  
  <pre><code>&lt;filter-class&gt;org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter&lt;/filter-class&gt;
  </code></pre>
  
  <p>in web.xml 
  also</p>