Query q = getSession().createQuery("from "+getGenericClassName()+" as c where c in (:subList)");
      q.setParameterList("subList", subList);
      System.out.println(q.toString());
      [b]return q.list();[/b]

package app.persist;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name=DBBook.tablename)
public class DBBook {
   
   public static final String tablename ="books";
   
   private Long id;
   private String name;
   private String type;
   private Integer nr_pages;
   private Float price;
   @Id
   @GeneratedValue
   public Long getId() {
      return id;
   }
   
   public String getType() {
      return type;
   }
   
   @Column(nullable = false)
   public Float getPrice() {
      return price;
   }
   
   
   public Integer getNr_pages() {
      return nr_pages;
   }
   
   @Column(nullable= false, unique=true)
   public String getName() {
      return name;
   }
   
   public void setType(String type) {
      this.type = type;
   }
   public void setPrice(Float price) {
      this.price = price;
   }
   public void setNr_pages(Integer nr_pages) {
      this.nr_pages = nr_pages;
   }
   public void setName(String name) {
      this.name = name;
   }
   public void setId(Long id) {
      this.id = id;
   }
   
}

QueryImpl(from app.persist.DBBook as c where c in (:subList))
Hibernate:
    /*
from
    app.persist.DBBook as c
where
    c in (
        :subList
    ) */ select
        dbbook0_.id as id2_,
        dbbook0_.name as name2_,
        dbbook0_.nr_pages as nr3_2_,
        dbbook0_.price as price2_,
        dbbook0_.type as type2_
    from
        books dbbook0_
    where
        dbbook0_.id in (
            ? , ? , ? , ? , ? , ? , ? , ? , ? , ?
        )
Sep 9, 2011 12:13:40 PM com.sun.faces.context.ExceptionHandlerImpl log
SEVERE: JSF1073: javax.faces.event.AbortProcessingException caught during processing of PROCESS_VALIDATIONS 3 : UIComponent-ClientId=j_idt30:j_idt32, Message=/app/cat/books.xhtml @17,51 valueChangeListener="#{books.changeSize}": org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of app.persist.DBBook.id
Sep 9, 2011 12:13:40 PM com.sun.faces.context.ExceptionHandlerImpl log
SEVERE: /app/cat/books.xhtml @17,51 valueChangeListener="#{books.changeSize}": org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of app.persist.DBBook.id
javax.faces.event.AbortProcessingException: /app/cat/books.xhtml @17,51 valueChangeListener="#{books.changeSize}": org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of app.persist.DBBook.id
   at javax.faces.event.MethodExpressionValueChangeListener.processValueChange(MethodExpressionValueChangeListener.java:157)
   at javax.faces.event.ValueChangeEvent.processListener(ValueChangeEvent.java:134)
   at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:777)
   at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:752)
   at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1167)
   at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
   at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
   at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
   at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:383)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
   at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
   at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of app.persist.DBBook.id
   at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:198)
   at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:227)
   at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3875)
   at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3583)
   at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:203)
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:242)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:456)
   at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:130)
   at org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:67)
   at org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:571)
   at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1716)
   at org.hibernate.loader.Loader.doQuery(Loader.java:801)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
   at org.hibernate.loader.Loader.doList(Loader.java:2533)
   at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
   at org.hibernate.loader.Loader.list(Loader.java:2271)
   at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:452)
   at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363)
   at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
   at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1268)
   at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
   at app.dao.ResultPager.nextPage(ResultPager.java:31)
   at app.BooksBean.getNext(BooksBean.java:41)
   at app.BooksBean.changeSize(BooksBean.java:53)
   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.el.parser.AstValue.invoke(AstValue.java:262)
   at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
   at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
   at javax.faces.event.MethodExpressionValueChangeListener.processValueChange(MethodExpressionValueChangeListener.java:144)
   ... 23 more
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
   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.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
   ... 54 more