String hql = "select distinct order from" + " Order order "
            + "join order.Customer customer "
            + "where customer.customerID=:customerId";

      Query orderQuary = session.createQuery(hql);
      query.setParameter("customerId", customerId);

      List<Order> orderList = orderQuary.list();

Hibernate: select customer0_.customerId as customerId0_, customer0_.customerName as customer2_0_, customer0_.customerAddress as customer3_0_, customer0_.customerDelivaryAddress as customer4_0_, customer0_.customerTPNumber as customer5_0_, customer0_.persontoAtten as personto6_0_, customer0_.customeremail as customer7_0_, customer0_.persontoAttanTPNumber as personto8_0_ from customer customer0_
Exception in thread "AWT-EventQueue-0" org.hibernate.hql.ast.QuerySyntaxException: unexpected token: order near line 1, column 17 [select distinct order from com.pearledge.domain.Order order join order.Customer customer where customer.customerID=:customerId]
   at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:31)
   at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:24)
   at org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:59)
   at org.hibernate.hql.ast.QueryTranslatorImpl.parse(QueryTranslatorImpl.java:258)
   at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:157)
   at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:111)
   at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:77)
   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 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.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
   at $Proxy0.createQuery(Unknown Source)
   at com.pearledge.UI.CreateOrderPanel.getCustomerPreviousOrderNumber(CreateOrderPanel.java:407)
   at com.pearledge.UI.CreateOrderPanel.actionPerformed(CreateOrderPanel.java:258)
   at javax.swing.JComboBox.fireActionEvent(Unknown Source)
   at javax.swing.JComboBox.setSelectedItem(Unknown Source)
   at javax.swing.JComboBox.setSelectedIndex(Unknown Source)
   at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(Unknown Source)
   at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
   at java.awt.Component.processMouseEvent(Unknown Source)
   at javax.swing.JComponent.processMouseEvent(Unknown Source)
   at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(Unknown Source)
   at java.awt.Component.processEvent(Unknown Source)
   at java.awt.Container.processEvent(Unknown Source)
   at java.awt.Component.dispatchEventImpl(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Window.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
   at java.awt.EventQueue.access$000(Unknown Source)
   at java.awt.EventQueue$1.run(Unknown Source)
   at java.awt.EventQueue$1.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
   at java.awt.EventQueue$2.run(Unknown Source)
   at java.awt.EventQueue$2.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
   at java.awt.EventQueue.dispatchEvent(Unknown Source)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.run(Unknown Source)

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.pearledge.domain">

<class name="Order" table="orders">
        <id name="ourOrderId" column="ourOrderID">
            <generator class="native" />
        </id>

        <property name="ourOrderName" column="ourOrderName" />
        <property name="orderDate" type="date"  column="orderdate" />
        <property name="delivaryDate" type="date" column="delivaryDate" />
        <property name="customerPONumber" column="customerPONumber" />

        <many-to-one name="customer" class="com.pearledge.domain.Customer" fetch="select">
            <column name="customerId" not-null="true" />
        </many-to-one>

    </class>
</hibernate-mapping>

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.pearledge.domain">
   <class name="Customer" table="customer">
      <id name="customerID" column="customerId">
         <generator class="increment"></generator>
      </id>
      <property name="customerName" column="customerName"></property>
      <property name="customerAddress" column="customerAddress"></property>
      <property name="customerDelivaryAddress" column="customerDelivaryAddress"></property>
      <property name="customerTPNumber" column="customerTPNumber"></property>
      <property name="personToAtten" column="persontoAtten"></property>
      <property name="customerEmailAddress" column="customeremail"></property>
      <property name="personToAttenTPNumber" column="persontoAttanTPNumber"></property>
      
      <set name="orderList" table="orders" inverse="true" lazy="true"
         fetch="select">
         <key>
            <column name="customerID" not-null="true" />
         </key>
         <one-to-many class="com.pearledge.domain.Order" />
      </set>
   </class>
</hibernate-mapping>

String hql = "from" + " Order order "
            + "join order.Customer customer "
            + "where customer.customerID=:customerId";
...