Tomcat: non riuscita a distruggere punto finale associato con ProtocolHandler

Question

Problema: esecuzione il mio progetto su un tomcat ottengo il seguente problema:

SCHWERWIEGEND: Failed to destroy end point associated with ProtocolHandler ["ajp-nio-8009"] 
java.lang.NullPointerException 
    at org.apache.tomcat.util.net.NioEndpoint.releaseCaches(NioEndpoint.java:316) 
    at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:492) 
    at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:821) 
    at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:534) 
    at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023) 
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297) 
    at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:589) 
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297) 
    at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:877) 
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297) 
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351) 
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485) 

Domanda: è il problema causato dal mio file web.xml ?

web.xml

<?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" 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>SMS Cloud Service</display-name> 


</web-app> 

HomeController.java

@RestController 
    public class HomeController { 

     private final MachineRepository machineRepository; 

     @Autowired 
     HomeController(MachineRepository machineRepository) { 
      this.machineRepository = machineRepository; 
     } 

     @RequestMapping(value = "/maschine/getAll", method = RequestMethod.GET) 
     Iterable<Machine> readMachines(@PathVariable String userId) { 

      return this.machineRepository.findAll(); 
     } 
    } 

Nota: Sono in esecuzione il progetto su Suite

Primavera Strumento

Versi on: 3.7.3.RELEASE Corporatura Id: 201.602.251.025 Piattaforma: Eclipse Neon (4,6)

server.xml di Tomcat

<?xml version='1.0' encoding='utf-8'?> 
<!-- 
    Licensed to the Apache Software Foundation (ASF) under one or more 
    contributor license agreements. See the NOTICE file distributed with 
    this work for additional information regarding copyright ownership. 
    The ASF licenses this file to You under the Apache License, Version 2.0 
    (the "License"); you may not use this file except in compliance with 
    the License. You may obtain a copy of the License at 

     http://www.apache.org/licenses/LICENSE-2.0 

    Unless required by applicable law or agreed to in writing, software 
    distributed under the License is distributed on an "AS IS" BASIS, 
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
    See the License for the specific language governing permissions and 
    limitations under the License. 
--> 
<!-- Note: A "Server" is not itself a "Container", so you may not 
    define subcomponents such as "Valves" at this level. 
    Documentation at /docs/config/server.html 
--> 
<Server port="8005" shutdown="SHUTDOWN"> 
    <Listener className="org.apache.catalina.startup.VersionLoggerListener" /> 
    <!-- Security listener. Documentation at /docs/config/listeners.html 
    <Listener className="org.apache.catalina.security.SecurityListener" /> 
    --> 
    <!--APR library loader. Documentation at /docs/apr.html --> 
    <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> 
    <!-- Prevent memory leaks due to use of particular java/javax APIs--> 
    <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> 
    <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> 
    <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> 

    <!-- Global JNDI resources 
     Documentation at /docs/jndi-resources-howto.html 
    --> 
    <GlobalNamingResources> 
    <!-- Editable user database that can also be used by 
     UserDatabaseRealm to authenticate users 
    --> 
    <Resource name="UserDatabase" auth="Container" 
       type="org.apache.catalina.UserDatabase" 
       description="User database that can be updated and saved" 
       factory="org.apache.catalina.users.MemoryUserDatabaseFactory" 
       pathname="conf/tomcat-users.xml" /> 
    </GlobalNamingResources> 

    <!-- A "Service" is a collection of one or more "Connectors" that share 
     a single "Container" Note: A "Service" is not itself a "Container", 
     so you may not define subcomponents such as "Valves" at this level. 
     Documentation at /docs/config/service.html 
    --> 
    <Service name="Catalina"> 

    <!--The connectors can use a shared executor, you can define one or more named thread pools--> 
    <!-- 
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" 
     maxThreads="150" minSpareThreads="4"/> 
    --> 


    <!-- A "Connector" represents an endpoint by which requests are received 
     and responses are returned. Documentation at : 
     Java HTTP Connector: /docs/config/http.html (blocking & non-blocking) 
     Java AJP Connector: /docs/config/ajp.html 
     APR (HTTP/AJP) Connector: /docs/apr.html 
     Define a non-SSL/TLS HTTP/1.1 Connector on port 8080 
    --> 
    <Connector port="8080" protocol="HTTP/1.1" 
       connectionTimeout="20000" 
       redirectPort="8443" /> 
    <!-- A "Connector" using the shared thread pool--> 
    <!-- 
    <Connector executor="tomcatThreadPool" 
       port="8080" protocol="HTTP/1.1" 
       connectionTimeout="20000" 
       redirectPort="8443" /> 
    --> 
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 
     This connector uses the NIO implementation that requires the JSSE 
     style configuration. When using the APR/native implementation, the 
     OpenSSL style configuration is required as described in the APR/native 
     documentation --> 
    <!-- 
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" 
       maxThreads="150" SSLEnabled="true" scheme="https" secure="true" 
       clientAuth="false" sslProtocol="TLS" /> 
    --> 

    <!-- Define an AJP 1.3 Connector on port 8009 --> 
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> 


    <!-- An Engine represents the entry point (within Catalina) that processes 
     every request. The Engine implementation for Tomcat stand alone 
     analyzes the HTTP headers included with the request, and passes them 
     on to the appropriate Host (virtual host). 
     Documentation at /docs/config/engine.html --> 

    <!-- You should set jvmRoute to support load-balancing via AJP ie : 
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1"> 
    --> 
    <Engine name="Catalina" defaultHost="localhost"> 

     <!--For clustering, please take a look at documentation at: 
      /docs/cluster-howto.html (simple how to) 
      /docs/config/cluster.html (reference documentation) --> 
     <!-- 
     <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> 
     --> 

     <!-- Use the LockOutRealm to prevent attempts to guess user passwords 
      via a brute-force attack --> 
     <Realm className="org.apache.catalina.realm.LockOutRealm"> 
     <!-- This Realm uses the UserDatabase configured in the global JNDI 
      resources under the key "UserDatabase". Any edits 
      that are performed against this UserDatabase are immediately 
      available for use by the Realm. --> 
     <Realm className="org.apache.catalina.realm.UserDatabaseRealm" 
       resourceName="UserDatabase"/> 
     </Realm> 

     <Host name="localhost" appBase="webapps" 
      unpackWARs="true" autoDeploy="true"> 

     <!-- SingleSignOn valve, share authentication between web applications 
      Documentation at: /docs/config/valve.html --> 
     <!-- 
     <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
     --> 

     <!-- Access log processes all example. 
      Documentation at: /docs/config/valve.html 
      Note: The pattern used is equivalent to using pattern="common" --> 
     <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
       prefix="localhost_access_log" suffix=".txt" 
       pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 

     </Host> 
    </Engine> 
    </Service> 
</Server> 

Answer 1

ho incontrato un problema simile quando pubblico un progetto web Maven dopo la pulizia in Eclipse. Nella mia esperienza, a sovle questo problema, è necessario:

1. aggiornamento il progetto Maven

2. percorso config accumulo -> rimuovere le cartelle di origine non necessarie

3. make sure web deployment assembly looks like this, rimuovere le voci inutili

4. eseguire configurazioni -> scegliere Tomcat -> quindi selezionare Classpath, make sure it looks like it

5. Infine, non dimenticare di creare un progetto.

Lavori per me. Spero che sia d'aiuto.

Answer 2

L'aggiornamento di Maven per il progetto ha funzionato.

Answer 3

Per visualizzare la directory in cui è possibile scaricare il pacchetto jar scaricato da Maven ed eliminare tutta la directory secondaria, quindi tornare a eclissi e fare clic su Aggiorna il progetto Maven. Questa è la mia esperienza e ci riesco in questo modo.

Answer 4

Provare a cercare i precedenti messaggi di errore nel registro.

Nel mio caso, ad esempio, c'era un errore nella definizione di servlet in web.xml.