HTTP Status 500 – Internal Server Error

 Type Exception Report

 Message Error instantiating servlet class [Servlet.BeerSelect]

 Description The server encountered an unexpected condition that prevented it from fulfilling the request.

 Exception

 javax.servlet.ServletException: Error instantiating servlet class [Servlet.BeerSelect]

 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)

 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)

 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)

 org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

 org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)

 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)

 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

 java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

 java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

 java.lang.Thread.run(Unknown Source)

 Root Cause

 java.lang.UnsupportedClassVersionError: Servlet/BeerSelect has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load class [Servlet.BeerSelect])

 org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2376)

 org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:834)

 org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1297)

 org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1157)

 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)

 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)

 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)

 org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

 org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)

 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)

 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

 java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

 java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

 java.lang.Thread.run(Unknown Source)

 Note The full stack trace of the root cause is available in the server logs.