Seam and query cache error

[mgrouch]

I'm trying to get Seam to use query cache (ehcache). I've changed
action (which was initially generated by seamGen) to the code below

(extend HibernateEntityQuery and override getCacheable())

Now I'm getting "Session is null" exception. What am I missing?

Thanks

import org.jboss.seam.annotations.Name;
import org.jboss.seam.framework.EntityQuery;
import org.jboss.seam.framework.HibernateEntityQuery;

import java.util.List;
import java.util.Arrays;

@Name("emailList")
public class EmailList extends HibernateEntityQuery {

 private static final String[] RESTRICTIONS = {};

 private Email email = new Email();

 @Override
 public String getEjbql() {
 return "select email from Email email";
 }

 @Override
 public Integer getMaxResults() {
 return 25;
 }

 public Email getEmail() {
 return email;
 }

 @Override
 public List<String> getRestrictions() {
 return Arrays.asList(RESTRICTIONS);
 }

 @Override
 protected Boolean getCacheable() {
 return true;
 }
}

Caused by: java.lang.IllegalStateException: session is null
at org.jboss.seam.framework.HibernateEntityQuery.validate(HibernateEntityQuery.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:20)
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
at org.jboss.seam.interceptors.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:34)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
at org.jboss.seam.interceptors.TransactionInterceptor$1.work(TransactionInterceptor.java:32)
at org.jboss.seam.util.Work.workInTransaction(Work.java:37)
at org.jboss.seam.interceptors.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:27)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
at com.lehman.primeserv.pilotapp.data.entity.PmdbFailCommentList_$$_javassist_1.validate(PmdbFailCommentList_$$_javassist_1.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:20)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:123)
at org.jboss.seam.Component.callComponentMethod(Component.java:1834)
at org.jboss.seam.Component.callCreateMethod(Component.java:1757)
at org.jboss.seam.Component.newInstance(Component.java:1746)
at org.jboss.seam.Component.getInstance(Component.java:1643)
at org.jboss.seam.Component.getInstance(Component.java:1610)
at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:53)
at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:574)
at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383)