[Data] Erreur non détérminé: java.lang.NullPointerException + Vidage des tables ?

Bonjour à tous,
Je suis novice dans Spring et voila mon problème:
J'ai une appli avec:
Java 1.6
MySQL 5.5.8
Hibernate 3
Spring 3.0.5
Tomcat 6
Eclipse Helios Service Release 2
Maven

Voici mes fichiers de conf:
ApplicationContext.xml

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
 
   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="hibernateProperties">
      <props>
        <prop key="hibernate.hbm2ddl.auto">create</prop>
        <prop key="hibernate.connection.pool_size">1</prop>
        <prop key="hibernate.show_sql">true</prop>
        <prop key="hibernate.connection.autocommit">true</prop>
 
        <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
        <prop key="hibernate.connection.driver_class">com.mysql.jdbc.Driver</prop>
        <prop key="hibernate.connection.url">jdbc:mysql://localhost:3306/my_db</prop>
        <prop key="hibernate.connection.username">user</prop>
        <prop key="hibernate.connection.password">password</prop>		
 
      </props>
    </property>
    <property name="annotatedClasses">
      <list>
        <value>com.clinique.entity.Article</value>
        <value>com.clinique.entity.Bloc</value>
		....
        <value>com.clinique.entity.Roles</value>
        <value>com.clinique.entity.Session</value>
        <value>com.clinique.entity.Stock</value>
        <value>com.clinique.entity.Users</value>
      </list>
    </property>
  </bean>
 
  <bean id="hibernateInterceptor" class="org.springframework.orm.hibernate3.HibernateInterceptor" autowire="byName" /><!--sessionFactory will get autowired-->
 
  <bean id="amirDaoTarget" class="com.clinique.dao.AmirDAOHibernateImpl" autowire="byName" /><!--sessionFactory will get autowired-->
 
  <bean id="amirDAO" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="proxyInterfaces">
      <value>com.clinique.dao.AmirDAO</value>
    </property>
    <property name="interceptorNames">
      <list>
        <value>hibernateInterceptor</value>
        <value>amirDaoTarget</value>
      </list>
    </property>
  </bean>
 
</beans>

applicationContext-security.xml

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<beans:beans 	xmlns="http://www.springframework.org/schema/security"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:beans="http://www.springframework.org/schema/beans"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-2.5.xsd
    http://www.springframework.org/schema/security
    http://www.springframework.org/schema/security/spring-security.xsd">
 
  <context:annotation-config/>
  <global-method-security jsr250-annotations="enabled" />
    <beans:bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<beans:property name="url" value="jdbc:mysql://localhost/my_db" />
		<beans:property name="username" value="user" />
		<beans:property name="password" value="password" />
	</beans:bean>
 
  <http auto-config="true">
  	<intercept-url pattern="/myapp/login" access="ROLE_ANONYMOUS,ROLE_USER,ROLE_ADMIN" />
    <intercept-url pattern="/myapp/**" access="ROLE_USER" />
    <form-login login-page="/myapp/login"
    			default-target-url="/myapp/tdb"
    			always-use-default-target="true"
    			authentication-failure-url="/myapp/login?login_error=1" />
     <logout logout-url="/myapp/logout" />
  </http>
 
	<authentication-manager alias="authenticationManager">
		<authentication-provider>
			<jdbc-user-service data-source-ref="dataSource"
			users-by-username-query="SELECT username, password, enabled FROM users WHERE username = ?"
			authorities-by-username-query="SELECT username, role FROM roles WHERE username = ?" />
		</authentication-provider>
	</authentication-manager >
</beans:beans>

dispatcher-servlet.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
	<bean id="viewResolver"	class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />
	<context:component-scan base-package="com.clinique.controller" />
	<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
	<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
</beans>

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_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>MyApp</display-name>
 
  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
 
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/myapp/*</url-pattern>
  </servlet-mapping>
 
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext.xml
                 /WEB-INF/applicationContext-security.xml</param-value>
  </context-param>
 
  <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
  </listener>
  
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
 
  <filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  </filter>
 
  <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

1. Mon premier soucis est que à chaque fois que je lance mon serveur TomCat sur Eclipse, le contenu des tables "users" et "roles" se vide: voici les logs du démarrage:

Code:

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21 nov. 2011 14:19:25 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_24\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Windows Live\Shared;C:\Program Files\WIDCOMM\Bluetooth Software\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Apache Software Foundation\apache-maven-3.0.3\bin;C:\Program Files\Java\jdk1.6.0_24\bin;C:\jboss\jboss403\bin;C:\silverpeas\silverpeas-5.5.2\bin;C:\Program Files\SSH Communications Security\SSH Secure Shell;D:\wamp\bin\php\php5.3.5\PEAR;D:\wamp\bin\php\php5.2.11\PEAR;C:\Program Files\OpenVPN\bin;D:\Work\Eclipse2;
21 nov. 2011 14:19:25 org.apache.tomcat.util.digester.SetPropertiesRule begin
ATTENTION: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:MyApp' did not find a matching property.
21 nov. 2011 14:19:25 org.apache.coyote.http11.Http11Protocol init
INFO: Initialisation de Coyote HTTP/1.1 sur http-8080
21 nov. 2011 14:19:25 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 402 ms
21 nov. 2011 14:19:25 org.apache.catalina.core.StandardService start
INFO: Démarrage du service Catalina
21 nov. 2011 14:19:25 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.26
21 nov. 2011 14:19:26 org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Users\Portable\workspace2\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps\MyApp\WEB-INF\lib\servlet-api-2.3.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
21 nov. 2011 14:19:26 org.apache.catalina.core.ApplicationContext log
INFO: Set web app root system property: 'webapp.root' = [C:\Users\Portable\workspace2\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps\MyApp\]
21 nov. 2011 14:19:26 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
INFO  ContextLoader                   - Root WebApplicationContext: initialization started
INFO  XmlWebApplicationContext        - Refreshing Root WebApplicationContext: startup date [Mon Nov 21 14:19:26 GMT+01:00 2011]; root of context hierarchy
INFO  XmlBeanDefinitionReader         - Loading XML bean definitions from ServletContext resource [/WEB-INF/applicationContext.xml]
INFO  XmlBeanDefinitionReader         - Loading XML bean definitions from ServletContext resource [/WEB-INF/applicationContext-security.xml]
INFO  SpringSecurityCoreVersion       - You are running with Spring Security Core 3.0.5.RELEASE
INFO  SecurityNamespaceHandler        - Spring Security 'config' module version is 3.0.5.RELEASE
INFO  tpSecurityBeanDefinitionParser  - Checking sorted filter chain: [Root bean: class [org.springframework.security.web.context.SecurityContextPersistenceFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 300, Root bean: class [org.springframework.security.web.authentication.logout.LogoutFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 400, Root bean: class [org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 800, Root bean: class [org.springframework.security.web.authentication.www.BasicAuthenticationFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1200, Root bean: class [org.springframework.security.web.savedrequest.RequestCacheAwareFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1300, Root bean: class [org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1400, Root bean: class [org.springframework.security.web.authentication.AnonymousAuthenticationFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1600, Root bean: class [org.springframework.security.web.session.SessionManagementFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1700, Root bean: class [org.springframework.security.web.access.ExceptionTranslationFilter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null, order = 1800, <org.springframework.security.web.access.intercept.FilterSecurityInterceptor#0>, order = 1900]
INFO  XmlWebApplicationContext        - Bean '(inner bean)' of type [class org.springframework.security.access.annotation.Jsr250MethodSecurityMetadataSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
INFO  XmlWebApplicationContext        - Bean 'org.springframework.security.access.method.DelegatingMethodSecurityMetadataSource#0' of type [class org.springframework.security.access.method.DelegatingMethodSecurityMetadataSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
INFO  XmlWebApplicationContext        - Bean 'org.springframework.security.methodSecurityMetadataSourceAdvisor' of type [class org.springframework.security.access.intercept.aopalliance.MethodSecurityMetadataSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
INFO  DefaultListableBeanFactory      - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@827968: defining beans [sessionFactory,hibernateInterceptor,amirDaoTarget,amirDAO,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.security.access.method.DelegatingMethodSecurityMetadataSource#0,org.springframework.security.access.vote.AffirmativeBased#0,org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor#0,org.springframework.security.methodSecurityMetadataSourceAdvisor,org.springframework.aop.config.internalAutoProxyCreator,dataSource,org.springframework.security.web.PortMapperImpl#0,org.springframework.security.web.context.HttpSessionSecurityContextRepository#0,org.springframework.security.web.authentication.session.SessionFixationProtectionStrategy#0,org.springframework.security.authentication.ProviderManager#0,org.springframework.security.access.vote.AffirmativeBased#1,org.springframework.security.web.access.intercept.FilterSecurityInterceptor#0,org.springframework.security.web.access.DefaultWebInvocationPrivilegeEvaluator#0,org.springframework.security.authentication.AnonymousAuthenticationProvider#0,org.springframework.security.web.savedrequest.HttpSessionRequestCache#0,org.springframework.security.web.authentication.www.BasicAuthenticationEntryPoint#0,org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter#0,org.springframework.security.config.http.UserDetailsServiceInjectionBeanPostProcessor#0,org.springframework.security.filterChainProxy,org.springframework.security.provisioning.JdbcUserDetailsManager#0,org.springframework.security.authentication.dao.DaoAuthenticationProvider#0,org.springframework.security.authentication.DefaultAuthenticationEventPublisher#0,org.springframework.security.authenticationManager]; root of factory hierarchy
INFO  Version                         - Hibernate Annotations 3.2.0.CR2
INFO  Environment                     - Hibernate 3.2 cr4
INFO  Environment                     - loaded properties from resource hibernate.properties: {hibernate.bytecode.use_reflection_optimizer=false}
INFO  Environment                     - Bytecode provider name : cglib
INFO  Environment                     - using JDK 1.4 java.sql.Timestamp handling
INFO  AnnotationBinder                - Binding entity from annotated class: com.clinique.entity.Article
INFO  EntityBinder                    - Bind entity com.clinique.entity.Article on table Article
INFO  AnnotationBinder                - Binding entity from annotated class: com.clinique.entity.Bloc
INFO  EntityBinder                    - Bind entity com.clinique.entity.Bloc on table Bloc
INFO  AnnotationBinder                - Binding entity from annotated class: com.clinique.entity.Roles
INFO  EntityBinder                    - Bind entity com.clinique.entity.Roles on table Roles
INFO  AnnotationBinder                - Binding entity from annotated class: com.clinique.entity.Users
INFO  QueryBinder                     - Binding Named query: Users.usernameLike => select r from Users r where r.username like ?
INFO  EntityBinder                    - Bind entity com.clinique.entity.Users on table Users
INFO  AnnotationSessionFactoryBean    - Building new Hibernate SessionFactory
INFO  riverManagerConnectionProvider  - Using Hibernate built-in connection pool (not for production use!)
INFO  riverManagerConnectionProvider  - Hibernate connection pool size: 1
INFO  riverManagerConnectionProvider  - autocommit mode: true
INFO  riverManagerConnectionProvider  - using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://localhost:3306/my_db
INFO  riverManagerConnectionProvider  - connection properties: {user=user, password=****, autocommit=true}
INFO  SettingsFactory                 - RDBMS: MySQL, version: 5.5.8-log
INFO  SettingsFactory                 - JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.0 ( $Date: 2007-04-05 23:56:05 +0200 (Thu, 05 Apr 2007) $, $Revision: 6376 $ )
INFO  Dialect                         - Using dialect: org.hibernate.dialect.MySQLDialect
INFO  TransactionFactoryFactory       - Transaction strategy: org.springframework.orm.hibernate3.SpringTransactionFactory
INFO  ransactionManagerLookupFactory  - No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
INFO  SettingsFactory                 - Automatic flush during beforeCompletion(): disabled
INFO  SettingsFactory                 - Automatic session close at end of transaction: disabled
INFO  SettingsFactory                 - JDBC batch size: 15
INFO  SettingsFactory                 - JDBC batch updates for versioned data: disabled
INFO  SettingsFactory                 - Scrollable result sets: enabled
INFO  SettingsFactory                 - JDBC3 getGeneratedKeys(): enabled
INFO  SettingsFactory                 - Connection release mode: auto
INFO  SettingsFactory                 - Maximum outer join fetch depth: 2
INFO  SettingsFactory                 - Default batch fetch size: 1
INFO  SettingsFactory                 - Generate SQL with comments: disabled
INFO  SettingsFactory                 - Order SQL updates by primary key: disabled
INFO  SettingsFactory                 - Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
INFO  ASTQueryTranslatorFactory       - Using ASTQueryTranslatorFactory
INFO  SettingsFactory                 - Query language substitutions: {}
INFO  SettingsFactory                 - JPA-QL strict compliance: disabled
INFO  SettingsFactory                 - Second-level cache: enabled
INFO  SettingsFactory                 - Query cache: disabled
INFO  SettingsFactory                 - Cache provider: org.hibernate.cache.NoCacheProvider
INFO  SettingsFactory                 - Optimize cache for minimal puts: disabled
INFO  SettingsFactory                 - Structured second-level cache entries: disabled
INFO  SettingsFactory                 - Echoing all SQL to stdout
INFO  SettingsFactory                 - Statistics: disabled
INFO  SettingsFactory                 - Deleted entity synthetic identifier rollback: disabled
INFO  SettingsFactory                 - Default entity-mode: pojo
INFO  SessionFactoryImpl              - building session factory
INFO  SessionFactoryObjectFactory     - Not binding factory to JNDI, no JNDI name configured
INFO  SchemaExport                    - Running hbm2ddl schema export
INFO  SchemaExport                    - exporting generated schema to database
ERROR SchemaExport                    - Unsuccessful: create table Bloc (attribute integer not null auto_increment, nomBloc varchar(255), primary key (attribute))
ERROR SchemaExport                    - Table 'bloc' already exists
INFO  SchemaExport                    - schema export complete
INFO  MethodSecurityInterceptor       - Validated configuration attributes
INFO  DriverManagerDataSource         - Loaded JDBC driver: com.mysql.jdbc.Driver
INFO  JdbcUserDetailsManager          - No authentication manager set. Reauthentication of users when changing passwords will not be performed.
INFO  FilterSecurityInterceptor       - Validated configuration attributes
INFO  ContextLoader                   - Root WebApplicationContext: initialization completed in 3869 ms
21 nov. 2011 14:19:30 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'dispatcher'
INFO  DispatcherServlet               - FrameworkServlet 'dispatcher': initialization started
INFO  XmlWebApplicationContext        - Refreshing WebApplicationContext for namespace 'dispatcher-servlet': startup date [Mon Nov 21 14:19:30 GMT+01:00 2011]; parent: Root WebApplicationContext
INFO  XmlBeanDefinitionReader         - Loading XML bean definitions from ServletContext resource [/WEB-INF/dispatcher-servlet.xml]
INFO  DefaultListableBeanFactory      - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@fd4662: defining beans [viewResolver,comptabiliteController,homeController,loginController,TDBController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0,org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@827968
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/comptabilite] onto handler 'comptabiliteController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/comptabilite.*] onto handler 'comptabiliteController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/comptabilite/] onto handler 'comptabiliteController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/home] onto handler 'homeController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/home.*] onto handler 'homeController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/home/] onto handler 'homeController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/home/home.*] onto handler 'homeController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/home/home/] onto handler 'homeController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/login] onto handler 'loginController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/login.*] onto handler 'loginController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/login/] onto handler 'loginController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/tdb] onto handler 'TDBController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/tdb.*] onto handler 'TDBController'
INFO  efaultAnnotationHandlerMapping  - Mapped URL path [/tdb/] onto handler 'TDBController'
INFO  DispatcherServlet               - FrameworkServlet 'dispatcher': initialization completed in 405 ms
21 nov. 2011 14:19:30 org.apache.coyote.http11.Http11Protocol start
INFO: Démarrage de Coyote HTTP/1.1 sur http-8080
21 nov. 2011 14:19:30 org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
21 nov. 2011 14:19:30 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/24  config=null
21 nov. 2011 14:19:30 org.apache.catalina.startup.Catalina start
INFO: Server startup in 5120 ms

2. Après ça l'appli se lance, et lorsque le controller TDBController s'execute:

Code:

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@Controller
public class TDBController {
	private AmirDAO amirDAO;
 
	@RequestMapping("/tdb")
	   public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException,
       IOException {
		Authentication auth = SecurityContextHolder.getContext().getAuthentication();
	    String name = auth.getName();
            //Et voici la ligne 43
	    Users user = amirDAO.findByUsername(name);
 
	    System.out.println("Je suis dans le controlleur avec le user : "+user.getNom());
  return new ModelAndView("tdb/index");
}
}

Le fichier d’implémentation Hibernate:

Code:

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@Override
public Users findByUsername(String username){
	List list = getHibernateTemplate().find("from Users where username=?",username);
	return (Users)list.get(0);
}}

Je reçois ce code d'erreur:

Code:

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21 nov. 2011 15:32:59 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: "Servlet.service()" pour la servlet dispatcher a généré une exception
java.lang.NullPointerException
	at com.clinique.controller.TDBController.handleRequest(TDBController.java:43)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:662)

Et je suis bloqué depuis un bon moment, votre aide me sera vraiment précieuse.
Merci d'avance.