hbm - Duplicate Class Entity Mapping - Why!?

[Brian Riley]

Please help. This is driving me crazy at this point.

I have a very simple class and corresponding hbm.xml file. I had it working this morning perfectly. I added a second hbm.xml file to the mix and everything stopped working. I removed the second hbm.xml and reverted back to the original and it now gives me a "Duplicate Class Entity/Mapping" message on the original hbm.xml.

I'm using spring-security-core and spring-security-cas plugins although they seem to have been causing no issues. I am letting GORM handle the Role and User_Role entities and am using hbm for the User because I need to pull data from my legacy DB during authentication.

I happened to look at my plugins directory and see a 'release 1.0.0.M2' entry that I did not install and is are not a part of any of my other projects. I can uninstall it but when I do a run-app it is redownloaded and installed.

I ran clean and then a refresh Grails Dependencies but it did not help.

I am running STS 2.7.1 RELEASE Build 201107091000. (The current Mac OSX dmg downloads that are out there on the STS download page appear to be corrupted). I mention this because I have been getting random 'Cannot resolve class E' error messages in the STS IDE ever since I download and installed STS tar.gz last week springsource-tool-suite-2.7.1.RELEASE-e3.7-macosx-carbon.tar.gz (I tried both the cocoa and carbon dmgs with no success, it opens disk utility instead of installing the app). My old STS install would have an eclipse-groovy update everyday and this one has none. I am wondering if there is an issue with the IDE itself.


Contents of my /grails-app/conf/hibernate/hibernate.cfg.xml:

<?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'>
	
<hibernate-configuration>
	<session-factory>
		<mapping resource="Person.hbm.xml" />
	</session-factory>
</hibernate-configuration>

Contents of the /grails-app/conf/hibernate/Person.hbm.xml:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
	<class name="edu.conncoll.banner.Person" table="CC_WRKCRD_PERSON_VW"
					dynamic-insert="false" dynamic-update="false">

		<id name="pidm" column="table_pidm" type="long"><generator class="assigned" /></id>

		<property name="bannerId" column="table_id" />
		<property name="thirdPartyId" column="table_external_user" />
		<property name="lastName" column="table_last_name" />
		<property name="firstName" column="table_first_name" />
		<property name="middleInitial" column="table_mi" />
		<property name="preferredName" column="vw_pref_first_name" />
		<property name="email" column="table_email_address" />

		<joined-subclass name="edu.conncoll.banner.User" table="CC_WRKCRD_USER_VW"
						dynamic-insert="false" dynamic-update="false">
			<key column="pidm" />

			<property name="id" column="id" />
			<property name="username" column="username" />
			<property name="password" column="password" />
			<property name="enabled" column="enabled" />
			<property name="accountExpired" column="account_expired" />
			<property name="accountLocked" column="account_locked" />
			<property name="passwordExpired" column="password_expired" />
	
		</joined-subclass>

	</class>

</hibernate-mapping>

Here is the /grails-app/domain/edu/conncoll/banner/Person class:

package edu.conncoll.banner

import java.io.Serializable;

class Person implements Serializable {

	long   pidm
	
	String bannerId
	String thirdPartyId
	
	String lastName
	String firstName
	String middleInitial
	String preferredName
	String email
	
	static constraints = {
		bannerId		nullable: false, unique: true
		pidm			nullable: false, unique: true
		thirdPartyId	        nullable: true, unique: true
		
		lastName		nullable: false
		firstName		nullable: false
		middleInitial	nullable: true
		preferredName	nullable: true		
	}
}

Here is the /grails-app/domain/edu/conncoll/banner/User class:

package edu.conncoll.banner

class User extends Person implements Serializable {

	String username
	String password
	boolean enabled
	boolean accountExpired
	boolean accountLocked
	boolean passwordExpired

	static constraints = {
		username blank: false, unique: true
		password blank: false
	}

	Set<Role> getAuthorities() {
		UserRole.findAllByUser(this).collect { it.role } as Set
	}
}

Here is the stack trace:

Configuring Spring Security ...
2011-08-02 11:21:07,161 [main] ERROR context.GrailsContextLoader  - Error executing bootstraps: Error creating bean with name 'messageSource': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.DuplicateMappingException: Duplicate class/entity mapping edu.conncoll.banner.User
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSource': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.DuplicateMappingException: Duplicate class/entity mapping edu.conncoll.banner.User
	at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:164)
	at grails.web.container.EmbeddableServer$start.call(Unknown Source)
	at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:158)
	at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy)
	at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
	at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
	at _GrailsRun_groovy$_run_closure5.doCall(_GrailsRun_groovy:149)
	at _GrailsRun_groovy$_run_closure5.call(_GrailsRun_groovy)
	at _GrailsRun_groovy.runInline(_GrailsRun_groovy:116)
	at _GrailsRun_groovy.this$4$runInline(_GrailsRun_groovy)
	at _GrailsRun_groovy$_run_closure1.doCall(_GrailsRun_groovy:59)
	at RunApp$_run_closure1.doCall(RunApp.groovy:33)
	at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
	at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
	at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
	at gant.Gant.withBuildListeners(Gant.groovy:427)
	at gant.Gant.this$2$withBuildListeners(Gant.groovy)
	at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
	at gant.Gant.dispatch(Gant.groovy:415)
	at gant.Gant.this$2$dispatch(Gant.groovy)
	at gant.Gant.invokeMethod(Gant.groovy)
	at gant.Gant.executeTargets(Gant.groovy:590)
	at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.DuplicateMappingException: Duplicate class/entity mapping edu.conncoll.banner.User
	... 23 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.DuplicateMappingException: Duplicate class/entity mapping edu.conncoll.banner.User
	... 23 more
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping edu.conncoll.banner.User
	... 23 more