[#5511] - Driver class not found

Hi

I have two istances of jasper server 6.1 installed on windows 2008 r2. The report repository is a postgres database installed on a centos machine.
The configurations of the windows machine are the same (same drivers, same installation folders,...).
I've random errors during the scheduling process (see below), but the reports work correctly using the web interface of jasper server.

Job: ordiniportafoglioedi (ID: 11615)
Report unit: /Reports/Prod/report1
Quartz Job: ReportJobs.job_11615
Quartz Trigger: ReportJobs.trigger_11611_6
Exceptions:

Impossibile completare il report. Si è verificato un errore durante la sua esecuzione.
com.jaspersoft.jasperserver.api.JSExceptionWrapper: java.lang.ClassNotFoundException: com.ibm.as400.access.AS400JDBCDriver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at com.jaspersoft.jasperserver.api.common.service.impl.JdbcDriverServiceImpl.loadDriverFromExistingClassLoaders(JdbcDriverServiceImpl.java:535)
at com.jaspersoft.jasperserver.api.common.service.impl.JdbcDriverServiceImpl.register(JdbcDriverServiceImpl.java:130)
at sun.reflect.GeneratedMethodAccessor528.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
at com.sun.proxy.$Proxy38.register(Unknown Source)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.DbcpDataSourceFactory.registerDriver(DbcpDataSourceFactory.java:57)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.DbcpDataSourceFactory.createPooledDataSource(DbcpDataSourceFactory.java:50)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.JdbcReportDataSourceServiceFactory.getPoolDataSource(JdbcReportDataSourceServiceFactory.java:146)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.JdbcReportDataSourceServiceFactory.createService(JdbcReportDataSourceServiceFactory.java:129)
at sun.reflect.GeneratedMethodAccessor527.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:91)
at com.jaspersoft.jasperserver.api.metadata.user.service.impl.ProfileAttributesResolverAspect.resolveDataSourceAttributes(ProfileAttributesResolverAspect.java:50)
at sun.reflect.GeneratedMethodAccessor525.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy41.createService(Unknown Source)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.createDataSourceService(EngineServiceImpl.java:1846)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:1728)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runWithDataSource(EngineServiceImpl.java:1090)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runReport(EngineServiceImpl.java:1019)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportRunnable.run(EngineServiceImpl.java:912)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$SynchronousExecutor.execute(EngineServiceImpl.java:890)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:607)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.executeReportUnitRequest(EngineServiceImpl.java:1941)
at com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.ReportUnitRequest.execute(ReportUnitRequest.java:67)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.execute(EngineServiceImpl.java:493)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.runReport(ReportExecutionJob.java:776)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeReport(ReportExecutionJob.java:741)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeReport(ReportExecutionJob.java:630)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeAndSendReport(ReportExecutionJob.java:468)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.execute(ReportExecutionJob.java:236)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:557)

Impossibile completare la notifica di errore lavoro. Si è verificato un errore durante il suo invio.
org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect. Failed messages: javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect; message exception details (1) are:
Failed message 1:
javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1282)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
at javax.mail.Service.connect(Service.java:275)
at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:389)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:340)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:336)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJobMailNotificationImpl.sendMailNotification(ReportExecutionJobMailNotificationImpl.java:135)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.sendMailNotification(ReportExecutionJob.java:1063)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeAndSendReport(ReportExecutionJob.java:575)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.execute(ReportExecutionJob.java:236)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:557)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1250)
... 11 more

fail to send out alert mail notification
org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect. Failed messages: javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect; message exception details (1) are:
Failed message 1:
javax.mail.MessagingException: Could not connect to SMTP host: mail.localhost.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out: connect
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1282)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
at javax.mail.Service.connect(Service.java:275)
at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:389)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:340)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:336)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJobAlertImpl.sendAlertMail(ReportExecutionJobAlertImpl.java:102)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.sendAlertMail(ReportExecutionJob.java:695)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.executeAndSendReport(ReportExecutionJob.java:582)
at com.jaspersoft.jasperserver.api.engine.scheduling.quartz.ReportExecutionJob.execute(ReportExecutionJob.java:236)
at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:557)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1250)
... 11 more