HTTP Status 500 – Internal Server Error

Type Exception Report

Message Error instantiating servlet class [com.shutterfly.progallery.servlets.GalleryServlet]

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

Exception

javax.servlet.ServletException: Error instantiating servlet class [com.shutterfly.progallery.servlets.GalleryServlet]
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.CrawlerSessionManagerValve.invoke(CrawlerSessionManagerValve.java:234)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
	java.base/java.lang.Thread.run(Thread.java:829)

Root Cause

java.lang.ClassNotFoundException: com.shutterfly.progallery.servlets.GalleryServlet
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1329)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1141)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.CrawlerSessionManagerValve.invoke(CrawlerSessionManagerValve.java:234)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
	java.base/java.lang.Thread.run(Thread.java:829)

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