[Spring / Maven / GWT / Hibernate] Erreur "org.hibernate.dialect.MySQLDialect cannot be cast to org.hibernate"

**PhilippeGibault** · 13/02/2012, 12h01

Bonjour, je suis en train de faire des tests pour savoir si il vaut mieux utiliser le couple (Hibernate/Spring/JSF/Maven) ou le couple (Hibernate/Spring/GWT/Maven).
Sur le test avec GWT, j'ai un problème d’instanciation de classes pour les dialectes Hibernate avec la BDD (que je n'ai pas avec le projet de test avec JSF).
Comment j'en suis arrivé là, c'est un peu compliqué donc je me permets juste de mettre le lien des problèmes précédents (ici).

Bon, en ce moment, le POM ressemble à ça:

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<?xml version="1.0" encoding="UTF-8"?>
<project
  xmlns="http://maven.apache.org/POM/4.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 
  <!-- POM file generated with GWT webAppCreator -->
  <modelVersion>4.0.0</modelVersion>
  <groupId>projet</groupId>
  <artifactId>projet</artifactId>
  <packaging>war</packaging>
  <version>0.1</version>
  <name>GWT Maven Archetype</name>
 
  <properties>
    <!-- Convenience property to set the GWT version -->
    <gwtVersion>2.0.0</gwtVersion>
    <!-- GWT needs at least java 1.5 -->
    <webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
    <!-- Les versions pour les libs projets -->
    <!-- JUnit -->
	<org.junit.bom.version>4.8.1</org.junit.bom.version>
 
	<!-- Hibernate version -->
	<org.hibernate.bom.version>4.1.0.Final</org.hibernate.bom.version>
	<!-- Hibernate annotations -->
	<org.hibernate.bom.version.annotations>3.5.6.Final</org.hibernate.bom.version.annotations>
 
	<!-- Commmon dbcp -->
	<org.commons.dbcp.bon.version>20030825.184428</org.commons.dbcp.bon.version>
 
	<!-- Common pools -->
	<org.commons.dbcp.pools.version>20030825.183949</org.commons.dbcp.pools.version>
 
	<!-- Driver JDBC MYSQL -->
	<org.jdbc.driver.mysql.bom.version>5.1.18</org.jdbc.driver.mysql.bom.version>
 
	<!-- spring general -->
	<org.spring.bom.version>3.1.0.RELEASE</org.spring.bom.version>
	<!-- Spring ORM -->
	<org.spring.orm.bom.version>3.1.0.RELEASE</org.spring.orm.bom.version>
 
	<!-- Validation -->
	<org.validation.bom.version>1.0.0.GA</org.validation.bom.version>
	<!-- Lib server (JSF...) compile for Tomcat, provided for JBoss -->
	<com.lib.scope>compile</com.lib.scope>	
  </properties>
 
 
  <repositories>
		<!-- JBoss-->
		<repository>
			<id>jboss richfaces</id>
			<name>jboss repository</name>
			<url>http://repository.jboss.org/nexus/content/groups/public-jboss/</url>
		</repository>
	</repositories>
 
  <dependencies>
    <dependency>
      <groupId>com.google.gwt</groupId>
      <artifactId>gwt-servlet</artifactId>
      <version>${gwtVersion}</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>com.google.gwt</groupId>
      <artifactId>gwt-user</artifactId>
      <version>${gwtVersion}</version>
      <scope>provided</scope>
    </dependency>
 
    <!-- Librairies du projet -->
    <!-- Junit -->
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>${org.junit.bom.version}</version>
		<scope>test</scope>
	</dependency>
 
	<!-- Hibernate -->
	<dependency> 
		<groupId>org.hibernate</groupId> 
		<artifactId>hibernate-core</artifactId> 
		<version>${org.hibernate.bom.version}</version> 
		<scope>${com.lib.scope}</scope> 
		<exclusions>
			<exclusion>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-api</artifactId>
			</exclusion>
		</exclusions>		
	</dependency>
 
	<dependency> 
		<groupId>org.hibernate</groupId> 
		<artifactId>hibernate-entitymanager</artifactId> 
		<version>${org.hibernate.bom.version}</version> 
		<scope>${com.lib.scope}</scope> 
	</dependency>  
 
	<dependency> 
		<groupId>org.hibernate</groupId> 
		<artifactId>hibernate-validator</artifactId> 
		<version>4.2.0.Final</version> 
		<scope>${com.lib.scope}</scope> 
	</dependency>  
 
	<!-- Validation  -->
	<dependency>
        <groupId>javax.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>${org.validation.bom.version}</version>
        <scope>${com.lib.scope}</scope> 
	</dependency>
 
	<!-- SLF4J Log -->
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-log4j12</artifactId>
		<version>1.6.4</version>
		<scope>compile</scope> 
	</dependency>
 
	<!-- Common dbcp -->
	<dependency>
		<groupId>commons-dbcp</groupId>
		<artifactId>commons-dbcp</artifactId>
		<version>${org.commons.dbcp.bon.version}</version>
		<scope>compile</scope>
	</dependency>
 
	<!-- MySQL driver -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>${org.jdbc.driver.mysql.bom.version}</version>
		<scope>compile</scope>
	</dependency>
 
	<!-- Commons pools -->
	<dependency>
		<groupId>commons-pool</groupId>
		<artifactId>commons-pool</artifactId>
		<version>${org.commons.dbcp.pools.version}</version>
		<scope>compile</scope>
	</dependency>
 
	 <!-- Java injection (JSR-330) -->
	<dependency>
		<groupId>javax.inject</groupId>
		<artifactId>javax.inject</artifactId>
		<version>1</version>
		<scope>${com.lib.scope}</scope>
	</dependency>
 
	<!-- Spring core -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${org.spring.bom.version}</version>
			<scope>compile</scope>
			<optional>false</optional>
		</dependency>
		<!-- Spring context -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${org.spring.bom.version}</version>
			<scope>compile</scope>
			<optional>false</optional>
		</dependency>
 
		<!-- Spring JDBC -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${org.spring.bom.version}</version>
			<scope>compile</scope>
			<optional>false</optional>
		</dependency>
 
 
		<!-- Spring ORM -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-orm</artifactId> 
			<version>${org.spring.orm.bom.version}</version>
			<scope>compile</scope>
			<optional>false</optional>
		</dependency>
 
		<!-- spring web -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${org.spring.bom.version}</version>
			<scope>compile</scope>
			<optional>false</optional>
		</dependency>
 
		<!-- spring test -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${org.spring.bom.version}</version>
			<scope>test</scope>
		</dependency>
 
  </dependencies>
 
  <build>
    <!-- Generate compiled stuff in the folder used for developing mode -->
    <outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
 
    <plugins>
 
      <!-- GWT Maven Plugin -->
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>gwt-maven-plugin</artifactId>
        <version>2.4.0</version>
        <executions>
          <execution>
            <goals>
              <goal>compile</goal>
              <goal>test</goal><!-- 
              <goal>i18n</goal>
              <goal>generateAsync</goal>-->
            </goals>
          </execution>
        </executions>
        <!-- Plugin configuration. There are many available options, see 
          gwt-maven-plugin documentation at codehaus.org -->
        <configuration>
          <runTarget>projet.html</runTarget>
          <hostedWebapp>${webappDirectory}</hostedWebapp>
          <i18nMessagesBundle>com.projet.client.Messages</i18nMessagesBundle>
        </configuration>
      </plugin>
 
      <!-- Copy static web files before executing gwt:run -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.1.1</version>
        <executions>
          <execution>
            <phase>compile</phase>
            <goals><!-- 
              <goal>exploded</goal>-->
            </goals>
          </execution>
        </executions>
        <configuration>
          <webappDirectory>${webappDirectory}</webappDirectory>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>      
    </plugins>
  </build>
 
</project>

Et le fichier Spring pour les accès à la BDD à ça:

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
     http://www.springframework.org/schema/context 
     http://www.springframework.org/schema/context/spring-context-2.5.xsd
     http://www.springframework.org/schema/context 
     http://www.springframework.org/schema/context/spring-context.xsd">
 
   <context:annotation-config />
 
   <context:component-scan base-package="com.projet.server.hibernate.service.impl" /> 
   <context:component-scan base-package="com.projet.server.jdbc.service.impl" /> 	
 
   <!-- Data source -->
   <bean id="dataSource" scope="singleton"
   		class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
   		<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
		<property name="url" value="jdbc:mysql://localhost/datbase_1"/>
		<property name="username" value="root"/>
		<property name="password" value="admin"/>
   </bean>   
 
   <!-- Hibernate Session Factory -->
   <bean id="sessionFactory" scope="singleton" 
   		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
   		<property name="dataSource" ref="dataSource"/>
   		<property name="hibernateProperties">
	        <props>
	            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
	            <prop key="hibernate.show_sql">true</prop>
	        </props>
	    </property>
	    <property name="annotatedPackages">
	    	<list>
	    		<value>com.projet.server.persistance.entity.impl</value>
	    	</list>
	    </property>
   </bean>
 
   <!-- Hibernate Template -->
   <bean id="hibernateTemplate" scope="singleton"
   		class="org.springframework.orm.hibernate3.HibernateTemplate">
   		<property name="sessionFactory" ref="sessionFactory"/>
   </bean>
 
   <!-- JDBC Template -->
   <bean id="jdbcTempate" scope="singleton"
   		class="org.springframework.jdbc.core.JdbcTemplate">
   		<property name="dataSource" ref="dataSource"/>
   </bean>
 
 
 
</beans>

Je ne sais pas si c'est utile, mais je donne au cas où le web.xml:

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
 
  <!-- Servlets -->
  <servlet>
  	<servlet-name>GlobalisService</servlet-name>
  	<servlet-class>com.projet.server.gwt.service.CCMGlobalisServiceServlet</servlet-class>
  </servlet>
 
  <servlet-mapping>
  	<servlet-name>GlobalisService</servlet-name>
  	<url-pattern>/projet/globalisService</url-pattern>
  </servlet-mapping>
 
  <!-- Default page to serve -->
  <welcome-file-list>
    <welcome-file>projet.html</welcome-file>
  </welcome-file-list>
 
  <!-- Spring -->
  <listener>
	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
 
  <listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
  </listener>
 
 <context-param>
    <param-name>contextConfigLocation</param-name>
        <!-- Chargement de tout fichier xml commençant par applicationContext -->
    <param-value>/WEB-INF/applicationContext*.xml</param-value>
 </context-param>
 
</web-app>

Comme il s'agit du mode hosted de google, je donne aussi le jetty-web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<Configure class="org.mortbay.jetty.webapp.WebAppContext">
	<Set name="systemClasses">
		<Array type="java.lang.String">
 
			<!--
				we copied these paths from jetty WebAppContext source code ...
			-->
			<Item>java.</Item>
			<Item>javax.servlet.</Item>
			<Item>javax.xml.</Item>
			<Item>org.mortbay.</Item>
			<Item>org.xml.</Item>
			<Item>org.w3c.</Item>
			<Item>org.apache.commons.logging.</Item>
			<Item>org.apache.log4j.</Item>
 
			<!-- and ... added slf4j -->
			<Item>org.slf4j.</Item>
			<!--
				File to fix hosted mode bug We must promote slf4j to system classes,
				otherwise gwt hosted mode will not allow loading them due to a
				policy that don't allow server classes to be loaded from the outside
				world (see gwt JettyLauncher source code).
 
				http://osdir.com/ml/GoogleWebToolkit/2009-04/msg01034.html Issue :
				http://code.google.com/p/google-web-toolkit/issues/detail?id=3496
			-->
 
		</Array>
	</Set>
</Configure>

El l'erreur: ça ressemble à ça:

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Loading modules
   com.projet.projet
      Validating <servlet> tags for module 'projet'
      For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/servletMappings.html
         [WARN] Module declares a servlet class 'com.google.gwt.junit.server.JUnitHostImpl', but the web.xml has no corresponding declaration; please add the following lines to your web.xml:
<servlet>
  <servlet-name>jUnitHostImpl</servlet-name>
  <servlet-class>com.google.gwt.junit.server.JUnitHostImpl</servlet-class>
</servlet>
<servlet-mapping>
  <servlet-name>jUnitHostImpl</servlet-name>
  <url-pattern>/projet/junithost</url-pattern>
</servlet-mapping>
[WARN] Server class 'org.springframework.web.context.ContextLoaderListener' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-web/3.1.0.RELEASE/spring-web-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.core.io.Resource' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-core/3.1.0.RELEASE/spring-core-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.context.ApplicationContextException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-context/3.1.0.RELEASE/spring-context-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.beans.FatalBeanException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-beans/3.1.0.RELEASE/spring-beans-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[WARN] Server class 'javax.inject.Provider' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/javax/inject/javax.inject/1/javax.inject-1.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.asm.ClassVisitor' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-asm/3.1.0.RELEASE/spring-asm-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'javax.persistence.EntityManagerFactory' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/hibernate/javax/persistence/hibernate-jpa-2.0-api/1.0.1.Final/hibernate-jpa-2.0-api-1.0.1.Final.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-orm/3.1.0.RELEASE/spring-orm-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.expression.PropertyAccessor' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-expression/3.1.0.RELEASE/spring-expression-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.apache.commons.dbcp.BasicDataSource' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/commons-dbcp/commons-dbcp/20030825.184428/commons-dbcp-20030825.184428.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.jdbc.core.JdbcTemplate' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-jdbc/3.1.0.RELEASE/spring-jdbc-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.apache.commons.pool.impl.GenericObjectPool' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/commons-pool/commons-pool/20030825.183949/commons-pool-20030825.183949.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.hibernate.cfg.NamingStrategy' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/hibernate/hibernate-core/4.1.0.Final/hibernate-core-4.1.0.Final.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.dom4j.DocumentException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.hibernate.annotations.common.reflection.ReflectionManager' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/hibernate/common/hibernate-commons-annotations/4.0.1.Final/hibernate-commons-annotations-4.0.1.Final.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.jboss.logging.BasicLogger' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/jboss/logging/jboss-logging/3.1.0.CR2/jboss-logging-3.1.0.CR2.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'javax.transaction.SystemException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/jboss/spec/javax/transaction/jboss-transaction-api_1.1_spec/1.0.0.Final/jboss-transaction-api_1.1_spec-1.0.0.Final.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'com.mysql.jdbc.Driver' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/mysql/mysql-connector-java/5.1.18/mysql-connector-java-5.1.18.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.apache.commons.collections.CursorableLinkedList' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/commons-collections/commons-collections/3.2.1/commons-collections-3.2.1.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.springframework.dao.DataAccessException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/C:/Eclipe_maven_gwt/eclipse/org/springframework/spring-tx/3.1.0.RELEASE/spring-tx-3.1.0.RELEASE.jar' to the web app classpath for this session
   For additional info see: file:/C:/Eclipe_maven_gwt/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201201120043-rel-r37/gwt-2.4.0/doc/helpInfo/webAppClassPath.html
Starting Jetty on port 8888
   [WARN] Failed startup of context com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload@198527{/,C:\dev_nico\GWT\projet\src\main\webapp}
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext-hibernate-jdbc.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Could not instantiate dialect class
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
	at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:543)
	at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
	at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1220)
	at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:513)
	at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
	at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:468)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
	at org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:115)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
	at org.mortbay.jetty.Server.doStart(Server.java:222)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:672)
	at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
	at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068)
	at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811)
	at com.google.gwt.dev.DevMode.main(DevMode.java:311)
Caused by: org.hibernate.HibernateException: Could not instantiate dialect class
	at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:82)
	at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:64)
	at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:146)
	at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
	at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2273)
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2269)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1738)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1778)
	at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:184)
	at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:314)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
	... 30 more
Caused by: java.lang.ClassCastException: org.hibernate.dialect.MySQLDialect cannot be cast to org.hibernate.dialect.Dialect
	at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:73)
	... 44 more
   [WARN] Nested in org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext-hibernate-jdbc.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Could not instantiate dialect class:
java.lang.ClassCastException: org.hibernate.dialect.MySQLDialect cannot be cast to org.hibernate.dialect.Dialect
	at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:73)
	at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:64)
	at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:146)
	at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
	at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2273)
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2269)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1738)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1778)
	at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:184)
	at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:314)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
	at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:543)
	at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
	at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1220)
	at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:513)
	at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
	at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:468)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
	at org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:115)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
	at org.mortbay.jetty.Server.doStart(Server.java:222)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
	at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:672)
	at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
	at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068)
	at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811)
	at com.google.gwt.dev.DevMode.main(DevMode.java:311)

L'exception qui va me rendre chèvre est (à mon avis):

Code :

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java.lang.ClassCastException: org.hibernate.dialect.MySQLDialect cannot be cast to org.hibernate.dialect.Dialect

Or, je ne comprend rien, cette classe est présente car j'ai téléchargé Hibernate-core via Maven.

Si quelqu'un a des idées, merci d'avance.

[Spring / Maven / GWT / Hibernate] Erreur "org.hibernate.dialect.MySQLDialect cannot be cast to org.hibernate" [Data]

Spring Java

Mode arborescent

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