Attempting to load properties file in current directory: openmrs-standalone-runtime.properties
Using runtime properties file: openmrs-standalone-runtime.properties
Aug 11, 2015 5:22:41 PM org.apache.catalina.startup.Embedded start
INFO: Starting tomcat server
Aug 11, 2015 5:22:42 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.26
Aug 11, 2015 5:22:47 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(/home/k-joseph/Desktop/openmrs-standalone-1.11.2/tomcat/webapps/openmrs-standalone/WEB-INF/lib/javax.servlet-api-3.0.1.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
Aug 11, 2015 5:22:47 PM org.apache.tomcat.util.modeler.Registry registerComponent
SEVERE: Null component Catalina:type=JspMonitor,name=jsp,WebModule=//localhost/openmrs-standalone,J2EEApplication=none,J2EEServer=none
Exception in thread "Thread-3" java.lang.UnsupportedClassVersionError: org/openmrs/web/Listener : Unsupported major.minor version 52.0 (unable to load class org.openmrs.web.Listener)
	at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2531)
	at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1010)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1483)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
	at org.apache.catalina.startup.WebAnnotationSet.loadClassAnnotation(WebAnnotationSet.java:145)
	at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:73)
	at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:56)
	at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:297)
	at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1074)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4377)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.startup.Embedded.start(Embedded.java:825)
	at org.openmrs.standalone.TomcatManager.run(TomcatManager.java:97)
	at org.openmrs.standalone.ApplicationController.startServer(ApplicationController.java:403)
	at org.openmrs.standalone.ApplicationController.access$000(ApplicationController.java:31)
	at org.openmrs.standalone.ApplicationController$1.construct(ApplicationController.java:140)
	at org.openmrs.standalone.SwingWorker$2.run(SwingWorker.java:125)
	at java.lang.Thread.run(Thread.java:679)