[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-443) JRE incompatibility, gives no persister for : java.lang.Boolean

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Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Fri, 31 Oct 2003 6:31 PM

This occurs because your get/set pair is overloaded, and diff JVMs return reflected methods in diff orders. Hibernate does not support overloaded get/set pairs. If it is a problem consider using access="direct" in 2.1.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-443


Here is an overview of the issue:
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        Key: HB-443
    Summary: JRE incompatibility, gives no persister for : java.lang.Boolean
       Type: Bug

     Status: Closed
   Priority: Critical
 Resolution: WON'T FIX

    Project: Hibernate2
   Versions:
             2.0.3

   Assignee: 
   Reporter: Sunil Reddy

    Created: Fri, 31 Oct 2003 1:26 PM
    Updated: Fri, 31 Oct 2003 6:31 PM
Environment: Windows 2000, going against DB2 7.0, Hibernate 2.0.3, Websphere 5.0, Sun JDK 1.3.1_01.

Description:
Topic: JRE incompatibility, gives no persister for : java.lang.Long

Hi Gavin,
Thanks for your reply, i think Hibernate is excellent, i am struggling with this problem whole week, i have tried everything from recompile hibernate to traversing trees but the bug exists whenever i switch from Ibm jre to Sun jre. I don't know where i am making a mistake, here is a recreation of the problem :

Classes : 
"Derivation" is a choice of "Aggregation" or "Formula", which are lists of "Item". "Aggregation" has method attribute of type min or max. "Item" can be a "Constant" or "Operator". DTD is as follows : 

<!ELEMENT Derivation (Formula | Aggregation)>
<!ATTLIST Derivation
	Type (aggregation | formula) #REQUIRED
>
<!ELEMENT Aggregation (Item+)>
<!ATTLIST Aggregation
	Method (max | min) #REQUIRED
>
<!ELEMENT Formula (Item+)>
<!ELEMENT Item EMPTY>
<!ATTLIST Item
	Type (constant | operator | reference) #REQUIRED
	Value CDATA #REQUIRED
>

Derivation.java :
public String getType ()			//can be aggregation or formula
public void setType (String enumValue) 
public Formula getFormula ()
public void setFormula (Formula obj)
public void setFormula (XmlElement xml)
public Aggregation getAggregation () 
public void setAggregation (Aggregation obj) 
public void setAggregation (XmlElement xml)

Aggregation.java :
public String getMethod () 			//can be max or min
public void setMethod (String enumValue) 
public java.util.List getItem () 
public void setItem (java.util.List newList) 

Formula.java
public java.util.List getItem () 
public void setItem (java.util.List newList) 

Item.java
public String getType ()			//can be constant or operator
public void setType (String enumValue) 

//building session factory
	Properties prop = new Properties();
	prop.load( new FileInputStream("hibernate.properties") );
	Configuration cfg = new Configuration();
	cfg.addClass(example.Aggregation.class);
	cfg.addClass(example.Derivation.class);
	cfg.addClass(example.Formula.class);
	cfg.addClass(example.Item.class);
	cfg.setProperties(prop);
	sessionFactory = cfg.buildSessionFactory();
//main
	SampleApp sa = new SampleApp();
	sa.session = sessionFactory.openSession();
	Derivation d = (Derivation) obj;	//created this object with sample data shown below
	sa.session.save(d);		
	sa.session.flush();
	sa.session.connection().commit();
	sa.session.close();
//sample data 
<Derivation Type="aggregation">
	<Aggregation Method="max">
		<Item Type="constant" Value="5"/>
		<Item Type="constant" Value="24"/>
		<Item Type="constant" Value="18"/>
	</Aggregation>
</Derivation>

//exception i get with Sun 1.3.1_01 or 1.3.1_09 or 1.4.2 versions but not with Ibm jre is
13:59:37,846 DEBUG SessionImpl:413 - opened session
13:59:37,846 DEBUG SessionImpl:656 - saving [example.Derivation#<null>]
13:59:37,846 DEBUG Cascades:336 - processing cascades for: example.Derivation
13:59:37,846 DEBUG Cascades:87 - cascading to saveOrUpdate()
net.sf.hibernate.MappingException: No persister for: java.lang.Boolean
	at net.sf.hibernate.impl.SessionFactoryImpl.getPersister(SessionFactoryImpl.java:420)
	at net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2302)
	at net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2309)
	at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1195)
	at net.sf.hibernate.engine.Cascades$4.cascade(Cascades.java:88)
	at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:258)
	at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:341)
	at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:693)
	at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:605)
	at example.SampleApp.main(SampleApp.java:89)


//Mappings for the above classes are :
<hibernate-mapping>
    <class name="example.Derivation" table="ex_derivation">
        <id name="id" type="long" column="id" unsaved-value="0">
             <generator class="native"/>
        </id>
        <property name="type"/>
        <many-to-one name="formula" class="example.Formula" column="formula_id" cascade="all"/>
        <many-to-one name="aggregation" class="example.Aggregation" column="aggregation_id" cascade="all"/>
    </class>
    <class name="example.Formula" table="ex_formula">
		<id name="id" type="long" column="id" unsaved-value="0">
			<generator class="native"/>
		</id>
		<list name="item" table="ex_item" cascade="all">
			<key column="formula_id"/>
			<index column="formula_index"/>
			<one-to-many class="example.Item"/>
		</list>
    </class>
    <class name="example.Aggregation" table="ex_aggregation">
		<id name="id" type="long" column="id" unsaved-value="0">
			<generator class="native"/>
		</id>
		<property name="method"/>
		<list name="item" table="ex_item" cascade="all">
			<key column="aggregation_id"/>
			<index column="aggregation_index"/>
			<one-to-many class="example.Item"/>
		</list>
    </class>
    <class name="example.Item" table="ex_item">
        <id name="id" type="long" column="id" unsaved-value="0">
             <generator class="native"/>
        </id>
        <property name="type"/>
        <property name="value"/>
    </class>
</hibernate-mapping>



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