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Cannot create JDBC driver of class '' for connect URL 'jdbc:oracle:thin:@localhost:1521:xe'
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333)	at oracle.jdbc.driver.OracleConnection.(OracleConnection.java:404)	at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468)	at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314)	at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:37)	at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:290)	at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:877)	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:851)	at org.apache.commons.dbcp.BasicDataSource.setLogWriter(BasicDataSource.java:598)	at org.apache.struts.action.ActionServlet.initModuleDataSources(ActionServlet.java:808)	at org.apache.struts.action.ActionServlet.init(ActionServlet.java:335)	at javax.servlet.GenericServlet.init(GenericServlet.java:261)	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:324)	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAsPrivileged(Subject.java:500)	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:118)	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1093)	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:931)	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4183)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4536)	at com.sun.enterprise.web.WebModule.start(WebModule.java:241)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:827)	at org.apache.catalina.core.ContainerBase.access$000(ContainerBase.java:125)	at org.apache.catalina.core.ContainerBase$PrivilegedAddChild.run(ContainerBase.java:147)	at java.security.AccessController.doPrivileged(Native Method)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:809)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)	at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1279)	at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1006)	at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:160)	at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:238)	at com.sun.enterprise.admin.event.AdminEventMulticaster.invokeModuleDeployEventListener(AdminEventMulticaster.java:918)	at com.sun.enterprise.admin.event.AdminEventMulticaster.handleModuleDeployEvent(AdminEventMulticaster.java:905)	at com.sun.enterprise.admin.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:427)	at com.sun.enterprise.admin.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:139)	at com.sun.enterprise.admin.server.core.DeploymentNotificationHelper.multicastEvent(DeploymentNotificationHelper.java:288)	at com.sun.enterprise.deployment.phasing.DeploymentServiceUtils.multicastEvent(DeploymentServiceUtils.java:155)	at com.sun.enterprise.deployment.phasing.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:258)	at com.sun.enterprise.deployment.phasing.StartPhase.runPhase(StartPhase.java:87)	at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:71)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:633)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:361)	at com.sun.enterprise.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:396)	at com.sun.enterprise.admin.mbeans.ApplicationsConfigMBean.start(ApplicationsConfigMBean.java:702)	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:324)	at com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:302)	at com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:357)	at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:213)	at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:220)	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:815)	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:784)	at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:54)	at $Proxy1.invoke(Unknown Source)	at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:272)	at com.sun.enterprise.admin.jmx.remote.server.callers.InvokeCaller.call(InvokeCaller.java:38)	at com.sun.enterprise.admin.jmx.remote.server.MBeanServerRequestHandler.handle(MBeanServerRequestHandler.java:92)	at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.processRequest(RemoteJmxConnectorServlet.java:69)	at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.doPost(RemoteJmxConnectorServlet.java:94)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:767)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)	at sun.reflect.GeneratedMethodAccessor61.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAsPrivileged(Subject.java:500)	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257)	at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)	at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)	at java.security.AccessController.doPrivileged(Native Method)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185)	at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:653)	at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:534)	at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.java:403)	at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55)