I have this kind of problem (this one), with app engine.
I just get started and trying to deploy my java app to App engine with eclipse plugin, after testing it at least 100 times at localhost (with tomcat-server and App engine standard localhost), it works fine in local.
But when I deploy it as app engine standard, I got this error when I'm trying to access any servlet:
java.lang.IllegalStateException: No such servlet: jsp at org.eclipse.jetty.servlet.ServletHandler.updateMappings (ServletHandler.java:1535) at org.eclipse.jetty.servlet.ServletHandler.doStart (ServletHandler.java:157) at org.eclipse.jetty.util.component.AbstractLifeCycle.start (AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start (ContainerLifeCycle.java:131) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart (ContainerLifeCycle.java:105) at org.eclipse.jetty.server.handler.AbstractHandler.doStart (AbstractHandler.java:61) at org.eclipse.jetty.security.SecurityHandler.doStart (SecurityHandler.java:361) at org.eclipse.jetty.security.ConstraintSecurityHandler.doStart (ConstraintSecurityHandler.java:448) at org.eclipse.jetty.util.component.AbstractLifeCycle.start (AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start (ContainerLifeCycle.java:131) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart (ContainerLifeCycle.java:105) at org.eclipse.jetty.server.handler.AbstractHandler.doStart (AbstractHandler.java:61) at org.eclipse.jetty.server.handler.ScopedHandler.doStart (ScopedHandler.java:120) at org.eclipse.jetty.server.session.SessionHandler.doStart (SessionHandler.java:116) at org.eclipse.jetty.util.component.AbstractLifeCycle.start (AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start (ContainerLifeCycle.java:131) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart (ContainerLifeCycle.java:105) at org.eclipse.jetty.server.handler.AbstractHandler.doStart (AbstractHandler.java:61) at org.eclipse.jetty.server.handler.ScopedHandler.doStart (ScopedHandler.java:120) at org.eclipse.jetty.server.handler.ContextHandler.startContext (ContextHandler.java:809) at org.eclipse.jetty.servlet.ServletContextHandler.startContext (ServletContextHandler.java:345) at org.eclipse.jetty.webapp.WebAppContext.startWebapp (WebAppContext.java:1406) at org.eclipse.jetty.webapp.WebAppContext.startContext (WebAppContext.java:1368) at org.eclipse.jetty.server.handler.ContextHandler.doStart (ContextHandler.java:778) at org.eclipse.jetty.servlet.ServletContextHandler.doStart (ServletContextHandler.java:262) at org.eclipse.jetty.webapp.WebAppContext.doStart (WebAppContext.java:522) at org.eclipse.jetty.util.component.AbstractLifeCycle.start (AbstractLifeCycle.java:68) at com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.createHandler (AppVersionHandlerMap.java:244) at com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.getHandler (AppVersionHandlerMap.java:182) at com.google.apphosting.runtime.jetty9.JettyServletEngineAdapter.serviceRequest (JettyServletEngineAdapter.java:97) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchServletRequest (JavaRuntime.java:680) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchRequest (JavaRuntime.java:642) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run (JavaRuntime.java:612) at com.google.apphosting.runtime.JavaRuntime$NullSandboxRequestRunnable.run (JavaRuntime.java:806) at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run (ThreadGroupPool.java:274) at java.lang.Thread.run (Thread.java:745)
I can access to other files, images, *.html.
I don't know if its important, I noticed that in app engine my web.xml file is modified by adding servlet and servelt-mapping (mapping to cloud storage I think) for all of my *.jsp files , but not in localhost.
And somewhere in the log details "This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application.", I don't know if is that linked to my trial account.
I am using datanucleus (datanucleus-api-jdo-5.1.0-release) libs, I have some filters, index file and error-page jsp in my web.xml too.
Eclipse project facets :
App engine standard envirement : JRE8
Servlet API : 2.5
JAVA : 1.8
JPA : 1.0
I really need help, thanks.
appengine-web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
<threadsafe>true</threadsafe>
<sessions-enabled>true</sessions-enabled>
<runtime>java8</runtime>
</appengine-web-app>
web.xml file :
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>my_project</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- SERVLETS DEFs -->
<servlet>
<servlet-name>Welcome</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Welcome</servlet-class>
</servlet>
<servlet>
<servlet-name>Statistic</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Statistic</servlet-class>
</servlet>
<servlet>
<servlet-name>Genea_Tree</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Genea_Tree</servlet-class>
</servlet>
<servlet>
<servlet-name>Genea_TreeEdit</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Genea_TreeEdit</servlet-class>
</servlet>
<servlet>
<servlet-name>New_event</servlet-name>
<servlet-class>my_root_package.servlets.controllers.New_event</servlet-class>
</servlet>
<servlet>
<servlet-name>Inscription</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Inscription</servlet-class>
</servlet>
<servlet>
<servlet-name>InscriptionStep1</servlet-name>
<servlet-class>my_root_package.servlets.controllers.InscriptionStep1</servlet-class>
</servlet>
<servlet>
<servlet-name>InscriptionStep2</servlet-name>
<servlet-class>my_root_package.servlets.controllers.InscriptionStep2</servlet-class>
</servlet>
<servlet>
<servlet-name>InscriptionConfirm</servlet-name>
<servlet-class>my_root_package.servlets.controllers.InscriptionConfirm</servlet-class>
</servlet>
<servlet>
<servlet-name>About</servlet-name>
<servlet-class>my_root_package.servlets.controllers.About</servlet-class>
</servlet>
<servlet>
<servlet-name>AdminDashboard</servlet-name>
<servlet-class>my_root_package.servlets.controllers.AdminDashboard</servlet-class>
</servlet>
<servlet>
<servlet-name>AdminAuthentification</servlet-name>
<servlet-class>my_root_package.servlets.secutity.controllers.AdminAuthentification</servlet-class>
</servlet>
<servlet>
<servlet-name>AdminPassReset</servlet-name>
<servlet-class>my_root_package.servlets.secutity.controllers.AdminPassReset</servlet-class>
</servlet>
<servlet>
<servlet-name>Search</servlet-name>
<servlet-class>my_root_package.servlets.controllers.Search</servlet-class>
</servlet>
<!-- SERVLETS MAPPING -->
<servlet-mapping>
<servlet-name>Welcome</servlet-name>
<url-pattern>/welcome</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Statistic</servlet-name>
<url-pattern>/statistic</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Genea_Tree</servlet-name>
<url-pattern>/genea_tree</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Genea_TreeEdit</servlet-name>
<url-pattern>/genea_tree/DetailEdit</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Genea_TreeEdit</servlet-name>
<url-pattern>/genea_tree/DetailEditMore</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>New_event</servlet-name>
<url-pattern>/new_event</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Inscription</servlet-name>
<url-pattern>/inscription</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>InscriptionStep1</servlet-name>
<url-pattern>/inscription/step1</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>InscriptionStep2</servlet-name>
<url-pattern>/inscription/step2</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>InscriptionConfirm</servlet-name>
<url-pattern>/inscription/Confirmation</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>About</servlet-name>
<url-pattern>/about</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminAuthentification</servlet-name>
<url-pattern>/admin/Authentification</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminPassReset</servlet-name>
<url-pattern>/admin/PassReset</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/dashboard</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/dashboard/insertionCommit</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/dashboard/updateCommit</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/dashboard/deleteCommit</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/InsertionCommitPost</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/updateCommitPost</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AdminDashboard</servlet-name>
<url-pattern>/admin/deleteCommitPost</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Search</servlet-name>
<url-pattern>/AdvancedSearch</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Search</servlet-name>
<url-pattern>/search</url-pattern>
</servlet-mapping>
<!-- ERROR PAGES -->
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/WEB-INF/errorManagement.jsp</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/404ErrorManagement.jsp</location>
</error-page>
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<page-encoding>UTF-8</page-encoding>
<include-prelude>/WEB-INF/taglibs.jsp</include-prelude>
</jsp-property-group>
</jsp-config>
<filter>
<filter-name>encodingfilter</filter-name>
<filter-class>my_root_package.filters.EncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<!-- FILTERS DEFs -->
<filter>
<filter-name>multipartFilter</filter-name>
<filter-class>my_root_package.filters.MultipartFilter</filter-class>
<init-param>
<param-name>maxFileSize</param-name>
<param-value>360000</param-value>
</init-param>
</filter>
<!-- FILTERS MAPPING -->
<filter-mapping>
<filter-name>encodingfilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>multipartFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>