Depuis que j'essaie de migrer mon application web de Vista à Linux j'ai une exception lors de la connexion à la db qui m'empêche de m'y connecter.

Voici la trace complète de l'exception:
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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13-avr.-2010 5:51:40 org.apache.coyote.http11.Http11Protocol init
INFO: Initialisation de Coyote HTTP/1.1 sur http-8080
13-avr.-2010 5:51:40 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1347 ms
13-avr.-2010 5:51:40 org.apache.catalina.core.StandardService start
INFO: Démarrage du service Catalina
13-avr.-2010 5:51:40 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.20
13-avr.-2010 5:51:43 org.apache.catalina.startup.HostConfig deployDescriptor
ATTENTION: A docBase /var/lib/tomcat6/webapps/ste-emploi inside the host appBase has been specified, and will be ignored
13-avr.-2010 5:51:45 security.ContextParam contextInitialized
INFO: Locale = fr
13-avr.-2010 5:51:52 org.apache.coyote.http11.Http11Protocol start
INFO: Démarrage de Coyote HTTP/1.1 sur http-8080
13-avr.-2010 5:51:52 org.apache.catalina.startup.Catalina start
INFO: Server startup in 11864 ms
13-avr.-2010 5:52:12 steemploi.persistance.DBConnection getInstance
INFO: DBConnection.dbconnection = new DBConnection();
13-avr.-2010 5:52:12 steemploi.persistance.DBConnection getConnection
INFO: Connection == null
13-avr.-2010 5:52:12 steemploi.persistance.DBConnection getInstance
INFO: DBConnection.dbconnection = new DBConnection();
13-avr.-2010 5:52:12 steemploi.persistance.DBConnection getConnection
INFO: Connection == null
13-avr.-2010 5:52:12 steemploi.persistance.DBConnection getConnection
INFO: Connection == null
13-avr.-2010 5:52:12 security.JSPAccess doFilter
INFO: URL: Login.do
13-avr.-2010 5:52:12 security.JSPAccess doFilter
ATTENTION: OK
13-avr.-2010 5:52:13 steemploi.persistance.DBConnection getConnection
INFO: Connection == null
13-avr.-2010 5:52:13 steemploi.persistance.Table <init>
GRAVE: Echec de la connection DB
13-avr.-2010 5:52:13 com.myapp.struts.Login execute
ATTENTION: NullPointerException dans Login
13-avr.-2010 5:52:13 com.myapp.struts.Login execute
ATTENTION: NullPointerException
java.lang.NullPointerException
	at steemploi.persistance.TableUtilisateurs.login(TableUtilisateurs.java:106)
	at com.myapp.struts.Login.execute(Login.java:45)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	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.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:301)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283)
	at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
	at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
	at security.Character.doFilter(Character.java:30)
	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.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:301)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
	at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
	at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
	at security.JSPAccess.doFilter(JSPAccess.java:305)
	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.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:301)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
	at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
	at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
	at java.lang.Thread.run(Thread.java:619)
13-avr.-2010 5:52:13 security.Character doFilter
INFO: Character UTF-8 : UTF-8 url : /ste-emploi/Login.do

S'agit-il d'un problème de permissions? J'arrive à me connecter à la db en root en cli sous Linux. Mais la webapp ne fonctionne pas.

Merci pour toute aide.

Manuel;