duplicate Mapping Exception : duplicate collection role mapping

[Songezo Nkukwana]

Hi, i get this strange error and i have double checked that i don't have duplicates

ERROR

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
%%%% Error Creating SessionFactory %%%%
org.hibernate.MappingException: Association references unmapped class: apps.navy.profiles.dto.RankProfile
	at org.hibernate.cfg.HbmBinder.bindCollectionSecondPass(HbmBinder.java:2380)
	at org.hibernate.cfg.HbmBinder$CollectionSecondPass.secondPass(HbmBinder.java:2662)
	at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43)
	at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1130)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1286)
	at apps.navy.profiles.hibernate.HibernateSessionFactory.<clinit>(HibernateSessionFactory.java:31)
	at apps.navy.profiles.dao.HibernateUtil.getSession(HibernateUtil.java:14)
	at apps.navy.profiles.testapp.HibTest01.init(HibTest01.java:24)
	at apps.navy.profiles.testapp.HibTest01.main(HibTest01.java:18)
%%%% Error Creating SessionFactory %%%%
org.hibernate.InvalidMappingException: Could not parse mapping document from resource apps/navy/profiles/dto/Ranks.hbm.xml
	at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)
	at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
	at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
	at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
	at apps.navy.profiles.hibernate.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:69)
	at apps.navy.profiles.hibernate.HibernateSessionFactory.getSession(HibernateSessionFactory.java:53)
	at apps.navy.profiles.dao.HibernateUtil.getSession(HibernateUtil.java:14)
	at apps.navy.profiles.testapp.HibTest01.init(HibTest01.java:24)
	at apps.navy.profiles.testapp.HibTest01.main(HibTest01.java:18)
Caused by: org.hibernate.DuplicateMappingException: Duplicate collection role mapping apps.navy.profiles.dto.Ranks.rankProfiles
	at org.hibernate.cfg.Mappings.addCollection(Mappings.java:124)
	at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2066)
	at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2041)
	at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:359)
	at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:273)
	at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:144)
	at org.hibernate.cfg.Configuration.add(Configuration.java:669)
	at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:504)
	at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
	... 10 more
---- Exception occurred : java.lang.NullPointerException : null

My hbm.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="apps.navy.profiles.dto.Ranks" table="RANKS" schema="LOCNAVY">
    
        <id name="rankId" type="java.lang.String">
            <column name="RANK_ID" length="2" />
            <generator class="assigned" />
        </id>
        
        <property name="description" type="java.lang.String">
            <column name="DESCRIPTION" length="20" not-null="true" />
        </property>
        
        <component name="auditInfo" class="Auditable" >
	        <property name="crtDat" type="java.util.Date">
	            <column name="CRT_DAT" length="7" />
	        </property>
	        <property name="crtId" type="java.lang.String">
	            <column name="CRT_ID" length="15" />
	        </property>
	        <property name="chgDat" type="java.util.Date">
	            <column name="CHG_DAT" length="7" />
	        </property>
	        <property name="chgId" type="java.lang.String">
	            <column name="CHG_ID" length="15" />
	        </property>        
        </component>       
        
        <set name="rankProfiles" inverse="true">
            <key>
                <column name="RANK_ID" length="2" not-null="true" />
            </key>
            <one-to-many class="apps.navy.profiles.dto.RankProfile" />
        </set>

    </class>
</hibernate-mapping>

My Rank Class

package apps.navy.profiles.dto;

import java.util.Date;
import java.util.HashSet;
import java.util.Set;

/**
 * AbstractRanks entity provides the base persistence definition of the Ranks
 * entity.
 * 
 * @author MyEclipse Persistence Tools
 */

public class Ranks implements java.io.Serializable {

	// Fields

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private String rankId;
	private String description;
	private Auditable auditInfo;
	private Set rankProfiles = new HashSet(0);

	// Constructors

	/** default constructor */
	public Ranks() {
	}

	/** minimal constructor */
	public Ranks(String rankId, String description) {
		this.rankId = rankId;
		this.description = description;
	}

	/** full constructor */
	public Ranks(String rankId, String description, Date crtDat,
			Auditable auditInfo,
			Set memVerifBiogDetsForRankNew, Set jobProfiles,
			Set rankSalaryGrades, Set rankProfiles,
			Set memVerifBiogDetsForRankOld, Set memContracts, Set postses,
			Set salaryLevelses, Set rnksAdmPerCrses, Set memberses) {
		this.auditInfo = auditInfo; 
		this.rankId = rankId;
		this.description = description;
		this.rankProfiles = rankProfiles;

	}

	// Property accessors

	public String getRankId() {
		return this.rankId;
	}

	public void setRankId(String rankId) {
		this.rankId = rankId;
	}

	public String getDescription() {
		return this.description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public Auditable getAuditInfo() {
		return auditInfo;
	}

	public void setAuditInfo(Auditable auditInfo) {
		this.auditInfo = auditInfo;
	}

	public Set getRankProfiles() {
		return this.rankProfiles;
	}

	public void setRankProfiles(Set rankProfiles) {
		this.rankProfiles = rankProfiles;
	}
}

and hibernate config

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>

<session-factory>
	<property name="connection.username">locnavy</property>
	<property name="connection.url">
		jdbc:oracle:thin:@11.11.8111:111:pppp
	</property>
	<property name="dialect">
		org.hibernate.dialect.Oracle9Dialect
	</property>
	<property name="myeclipse.connection.profile">xxxx</property>
	<property name="connection.password">xxxx</property>
	<property name="connection.driver_class">
		oracle.jdbc.driver.OracleDriver
	</property>

	<mapping resource="apps/navy/profiles/dto/RankProfile.hbm.xml" />	
	<mapping resource="apps/navy/profiles/dto/Ranks.hbm.xml" />

</session-factory>

</hibernate-configuration>

[Paul Sturrock]

Your first error means you have not mapped the class RankProfile.

Your second error means exactly what it says: you have mapped the collection rankProfiles more than once.

Given the configuration files you've posted look OK, I'd check what is actually deployed in your application because it looks like that's not what you think it is.