SELECT l FROM Lote l
WHERE l.numero is not null
AND l.fechaCierre >= :fechaDesde)
AND l.fechaCierre <= :fechaHasta)
AND (:clasificaciones is empty OR l.clasificacion in (:clasificaciones))
AND (:grados is empty OR l.grado in (:grados))
AND (:tipos_grado is empty OR l.grado.tipo in (:tipos_grado))

Caused by: java.lang.NullPointerException
   at org.hibernate.hql.ast.ParameterTranslationsImpl.getNamedParameterExpectedType(ParameterTranslationsImpl.java:63)
   at org.hibernate.engine.query.HQLQueryPlan.buildParameterMetadata(HQLQueryPlan.java:296)
   at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:97)
   at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:56)
   at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:72)
   at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133)
   at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112)
   at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1623)
   at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:93)
   at org.jboss.seam.persistence.EntityManagerProxy.createQuery(EntityManagerProxy.java:81)
   at ptk.resina.bean.produccion.ReporteProduccionBean.getLotesCerrados(ReporteProduccionBean.java:47)
   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.jboss.seam.util.Reflections.invoke(Reflections.java:22)
   at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32)
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
   at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
   at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77)
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
   at org.jboss.seam.core.ConversationalInterceptor.aroundInvoke(ConversationalInterceptor.java:43)
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
   at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
   at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
   at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
   at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
   at ptk.resina.bean.produccion.ReporteProduccionBean_$$_javassist_seam_9.getLotesCerrados(ReporteProduccionBean_$$_javassist_seam_9.java)
   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 javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
   at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
   at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
   at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
   at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
   at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
   at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)