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Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.postgresql.Driver' javax.faces.el.EvaluationException
java.lang.UnsupportedClassVersionError: org/postgresql/Driver : Unsupported major.minor version 51.0 (unable to load class org.postgresql.Driver)	at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)	at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:171)	at org.apache.commons.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1415)	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)	at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:573)	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:812)	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:868)	at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:876)	at com.tutorialspoint.test.EmployeeDAO.delete(EmployeeDAO.java:53)	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 com.sun.el.parser.AstValue.invoke(AstValue.java:130)	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)	at javax.faces.component.UICommand.broadcast(UICommand.java:315)	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	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:293)	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)	at java.lang.Thread.run(Thread.java:662)