Caused by: java.lang.IllegalArgumentException: Parameter value [java.util.GregorianCalendar[time=1382561831603,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="America/Chicago",offset=-21600000,dstSavings=3600000,useDaylight=true,transitions=235,lastRule=java.util.SimpleTimeZone[id=America/Chicago,offset=-21600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]],firstDayOfWeek=1,minimalDaysInFirstWeek=1,ERA=1,YEAR=2013,MONTH=9,WEEK_OF_YEAR=43,WEEK_OF_MONTH=4,DAY_OF_MONTH=23,DAY_OF_YEAR=296,DAY_OF_WEEK=4,DAY_OF_WEEK_IN_MONTH=4,AM_PM=1,HOUR=3,HOUR_OF_DAY=15,MINUTE=57,SECOND=11,MILLISECOND=603,ZONE_OFFSET=-21600000,DST_OFFSET=3600000]] did not match expected type [java.util.Date]
at org.hibernate.ejb.AbstractQueryImpl.validateParameterBinding(AbstractQueryImpl.java:375) [hibernate-entitymanager-4.2.0.SP1-redhat-1.jar:4.2.0.SP1-redhat-1]
at org.hibernate.ejb.AbstractQueryImpl.registerParameterBinding(AbstractQueryImpl.java:348) [hibernate-entitymanager-4.2.0.SP1-redhat-1.jar:4.2.0.SP1-redhat-1]
at org.hibernate.ejb.QueryImpl.setParameter(QueryImpl.java:419) [hibernate-entitymanager-4.2.0.SP1-redhat-1.jar:4.2.0.SP1-redhat-1]
at org.hibernate.ejb.QueryImpl.setParameter(QueryImpl.java:73) [hibernate-entitymanager-4.2.0.SP1-redhat-1.jar:4.2.0.SP1-redhat-1]
at org.jboss.as.jpa.container.QueryNonTxInvocationDetacher.setParameter(QueryNonTxInvocationDetacher.java:142) [jboss-as-jpa-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]

// With GregorianCalendar the execution failed in EAP6.1, but NOT in EAP5!
// GregorianCalendar date = new GregorianCalendar();
// With Date the execution successes in EAP6.1!
Date date = new Date();
Query query = this.manager.createQuery("from xxx where maketime <= :_maketime");
query.setParameter("_maketime", date, TemporalType.TIMESTAMP);
return query.getResultList();
@Entity
public class xxx implements Serializable {
...
private Date maketime;
public Date getMaketime()
{ return maketime; }
public void setMaketime(Date maketime)
{ this.maketime = maketime; }
}

private void validateParameterBinding(Parameter parameter, Object value) {
if ( value == null || parameter.getParameterType() == null )
{ // nothing we can check return; }
if ( Collection.class.isInstance( value )
&& ! Collection.class.isAssignableFrom( parameter.getParameterType() ) )
{ // we have a collection passed in where we are expecting a non-collection. // NOTE : this can happen in Hibernate's notion of "parameter list" binding // NOTE2 : the case of a collection value and an expected collection (if that can even happen) //	 will fall through to the main check. validateCollectionValuedParameterMultiBinding( parameter, (Collection) value ); }
else if ( value.getClass().isArray() )
{ validateArrayValuedParameterBinding( parameter, value ); }
else {
if ( ! parameter.getParameterType().isInstance( value ) )
{ throw new IllegalArgumentException( String.format( "Parameter value [%s] did not match expected type [%s]", value, parameter.getParameterType().getName() ) ); }
}
}