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com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '????????????????' at line 1
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1026)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3536)
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3468)
   at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957)
   at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107)
   at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642)
   at com.mysql.jdbc.ConnectionImpl.configureClientCharacterSet(ConnectionImpl.java:1818)
   at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3546)
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2156)
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:773)
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:348)
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
   at java.sql.DriverManager.getConnection(libgcj.so.90)
   at ocs.Singleton.<init>(Singleton.java:32)
   at ocs.Singleton.getInstance(Singleton.java:45)
   at ocs.login.doPost(login.java:41)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
   at java.lang.Thread.run(libgcj.so.90)
13-aoû-09 11:02:28  org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: "Servlet.service()" pour la servlet login a généré une exception
java.lang.NullPointerException
   at ocs.login.doPost(login.java:42)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
   at java.lang.Thread.run(libgcj.so.90)