Develop Reference

Eclipse tomcat java.lang.ClassNotFoundException: com.web.servlets.SearchServiceServlet

Tomcat throws exception
java.lang.ClassNotFoundException: com.web.servlets.SearchServiceServlet every time i try to access my servlet.
The servlets is in the correct package structure:
I defined my servlet in the 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_4_0.xsd" id="WebApp_ID" version="4.0">
<display-name>PetClinic</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<session-config>
<session-timeout>15</session-timeout>
</session-config>
<servlet>
<servlet-name>searchService</servlet-name>
<servlet-class>com.web.servlets.SearchServiceServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>searchService</servlet-name>
<url-pattern>/searchServ</url-pattern>
</servlet-mapping>
</web-app>
The servlet class:
public class SearchServiceServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* #see HttpServlet#HttpServlet()
*/
public SearchServiceServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* #see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String first_name = request.getParameter("first_name");
String last_name = request.getParameter("last_name");
int age = Integer.valueOf( request.getParameter("age") );
String pet_name = request.getParameter("pet_Name");
String pet_type = request.getParameter("pet_type");
int rating = Integer.valueOf(request.getParameter("rating"));
int experience = Integer.valueOf(request.getParameter("experience"));
System.out.println("First name = "+first_name+",last name = "+last_name+",age = "+age+",pet's name = "+pet_name+",pet's type = "+pet_type+",rating = "+rating+",experience = "+experience);
}
/**
* #see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
Could it be that eclipse doesn't properly generate classes?If yes,how can i test this?Because a simple POJO with main method works fine.
Also,here is the full exception and what the tomcat prints when i start the application:
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version name: Apache Tomcat/9.0.17
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built: Mar 13 2019 15:55:27 UTC
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version number: 9.0.17.0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name: Windows 10
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version: 10.0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture: amd64
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home: C:\Program Files\Java\jdk1.8.0_181\jre
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version: 1.8.0_181-b13
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor: Oracle Corporation
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE: C:\Users\Barracuda\Desktop\Projects\Eclipse Projects\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME: C:\Program Files\Apache Software Foundation\Tomcat 9.0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\Users\Barracuda\Desktop\Projects\Eclipse Projects\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 9.0
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\Users\Barracuda\Desktop\Projects\Eclipse Projects\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 9.0\endorsed
апр 11, 2019 12:15:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1251
апр 11, 2019 12:15:21 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: An older version [1.2.17] of the APR based Apache Tomcat Native library is installed, while Tomcat recommends a minimum version of [1.2.21]
апр 11, 2019 12:15:21 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: Loaded APR based Apache Tomcat Native library [1.2.17] using APR version [1.6.3].
апр 11, 2019 12:15:21 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
апр 11, 2019 12:15:21 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
апр 11, 2019 12:15:22 PM org.apache.catalina.core.AprLifecycleListener initializeSSL
INFO: OpenSSL successfully initialized [OpenSSL 1.0.2o 27 Mar 2018]
апр 11, 2019 12:15:22 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
апр 11, 2019 12:15:23 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
апр 11, 2019 12:15:23 PM org.apache.catalina.startup.Catalina load
INFO: Server initialization in [2 666] milliseconds
апр 11, 2019 12:15:23 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service [Catalina]
апр 11, 2019 12:15:23 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet engine: [Apache Tomcat/9.0.17]
апр 11, 2019 12:15:23 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
апр 11, 2019 12:15:24 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
апр 11, 2019 12:15:24 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
апр 11, 2019 12:15:24 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
апр 11, 2019 12:15:24 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in [987] milliseconds
апр 11, 2019 12:15:28 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet [searchService] as unavailable
апр 11, 2019 12:15:28 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Allocate exception for servlet [searchService]
java.lang.ClassNotFoundException: com.web.servlets.SearchServiceServlet
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1363)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1186)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:540)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:521)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:150)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1031)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:761)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:134)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
P.S The class is in the right package :package com.web.servlets;

Try specifying the package in your class file.
package com.web.servlets;

java.lang.ClassNotFoundException Exception is thrown when the ClassLoader cannot find the specified class.
You have:
<servlet-class>com.web.servlets.SearchServiceServlet</servlet-class>
That means you have a package: com.web.servlets where the class SearchServiceServlet is located.
In case you have a Maven project you should have scr/main/java/%yourpackagename%/yourClass
In case it is a simple web-project then it should be like src/yourpackagename/yourClass.

The problem got fixed after the restart of eclipse...Though there is another problem. Whenever i save the servlets class,after changing it,it doesn't see the new class,but uses the previous version of it.What's the problem here?

JAX-RS on TomCat always returns 404

I have already looked at many tutorials, but I can't get my simple JAX-RS application to work. Tomcat always returns Error 404.
The Application to get Classes:
package api;
import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
#ApplicationPath("/resources")
public class MyApplication extends Application {
// All request scoped resources and providers
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> classes = new HashSet<>();
classes.add(AuthenticationEndpoint.class);
return classes;
}
}
My JAX-RS file:
package api;
#Path("/hello")
public class AuthenticationEndpoint {
#GET
public Response getUser() {
return Response.status(200).entity("getUser is called").build();
}
}
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" version="3.1">
<display-name>MSM-Master</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>MyApplication</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>api</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>MyApplication</servlet-name>
<url-pattern>/resources</url-pattern>
</servlet-mapping>
</web-app>
Under "Web Project Settings" my Context root is: "MSM-Master"
The url I tried to call was:
http://localhost:8080/MSM-Master/resources/hello/
Edit:
added Tomcat Console output:
Dez 14, 2017 4:32:39 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:MSM-Master' did not find a matching property.
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server version: Apache Tomcat/8.0.30
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server built: Dec 1 2015 22:30:46 UTC
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server number: 8.0.30.0
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Name: Windows 7
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Version: 6.1
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Architecture: amd64
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Java Home: C:\Program Files\Java\jre1.8.0_66
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Version: 1.8.0_66-b18
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Vendor: Oracle Corporation
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_BASE: C:\Users\u016975\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_HOME: C:\Program Files\Apache Software Foundation\Tomcat 8.0
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.base=C:\Users\u016975\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 8.0
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dwtp.deploy=C:\Users\u016975\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 8.0\endorsed
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dfile.encoding=Cp1252
Dez 14, 2017 4:32:39 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMATION: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_66\bin;C:\windows\Sun\Java\bin;C:\windows\system32;C:\windows;C:/Program Files/Java/jre1.8.0_66/bin/server;C:/Program Files/Java/jre1.8.0_66/bin;C:/Program Files/Java/jre1.8.0_66/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Java\jdk1.8.0_66\bin;C:\Program Files\Git\cmd;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Users\u016975\AppData\Roaming\npm\;C:\Users\u016975\apache-ant-1.9.7\bin;C:\Users\u016975\AppData\Local\Android\android-sdk\tools;C:\Users\u016975\AppData\Local\Android\android-sdk\platform-tools;C:\windows\system32; C:\windows; C:\windows\System32\Wbem;C:\Applications\Atlassian\atlassian-plugin-sdk-6.2.14\bin;C:\Users\u016975\AppData\Local\Apps\cURL\bin;C:\Applications\Atlassian\atlassian-plugin-sdk-6.2.15\bin;node_modules\npm;C:\Program Files\nodejs\;C:\Users\u016975\apache-ant-1.9.7\bin;C:\Users\u016975\AppData\Local\Android\android-sdk\tools;C:\Users\u016975\AppData\Local\Android\android-sdk\platform-tools;C:\windows\system32; C:\windows; C:\windows\System32\Wbem;C:\Applications\Atlassian\atlassian-plugin-sdk-6.2.14\bin;C:\Users\u016975\AppData\Local\Apps\cURL\bin;C:\Applications\Atlassian\atlassian-plugin-sdk-6.2.15\bin;node_modules\npm;C:\Users\u016975\AppData\Roaming\npm;C:\Program Files\Microsoft VS Code\bin;C:\Users\u016975\Downloads\eclipse-jee-mars-1-win32-x86_64\eclipse;;.
Dez 14, 2017 4:32:39 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["http-nio-8080"]
Dez 14, 2017 4:32:39 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Dez 14, 2017 4:32:39 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["ajp-nio-8009"]
Dez 14, 2017 4:32:39 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Dez 14, 2017 4:32:39 PM org.apache.catalina.startup.Catalina load
INFORMATION: Initialization processed in 621 ms
Dez 14, 2017 4:32:39 PM org.apache.catalina.core.StandardService startInternal
INFORMATION: Starting service Catalina
Dez 14, 2017 4:32:39 PM org.apache.catalina.core.StandardEngine startInternal
INFORMATION: Starting Servlet Engine: Apache Tomcat/8.0.30
Dez 14, 2017 4:32:46 PM org.apache.jasper.servlet.TldScanner scanJars
INFORMATION: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Dez 14, 2017 4:32:46 PM org.apache.catalina.core.StandardContext startInternal
SCHWERWIEGEND: Error during ServletContainerInitializer processing
javax.servlet.ServletException: java.lang.InstantiationException: org.glassfish.tyrus.server.TyrusServerConfiguration
at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:88)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5244)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.InstantiationException: org.glassfish.tyrus.server.TyrusServerConfiguration
at java.lang.Class.newInstance(Unknown Source)
at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:74)
... 8 more
Caused by: java.lang.NoSuchMethodException: org.glassfish.tyrus.server.TyrusServerConfiguration.<init>()
at java.lang.Class.getConstructor0(Unknown Source)
... 10 more
Dez 14, 2017 4:32:46 PM org.apache.catalina.core.StandardContext startInternal
SCHWERWIEGEND: Context [/MSM-Master] startup failed due to previous errors
Dez 14, 2017 4:32:46 PM org.apache.coyote.AbstractProtocol start
INFORMATION: Starting ProtocolHandler ["http-nio-8080"]
Dez 14, 2017 4:32:46 PM org.apache.coyote.AbstractProtocol start
INFORMATION: Starting ProtocolHandler ["ajp-nio-8009"]
Dez 14, 2017 4:32:46 PM org.apache.catalina.startup.Catalina start
INFORMATION: Server startup in 6457 ms

#ApplicationPath provided by JAX – RS which is used to develop a restful web services application with out web.xml. So you can delete your web.xml
Then try overriding getProperties
#ApplicationPath("/resources")
public class MyApplication extends Application {
// All request scoped resources and providers
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> classes = new HashSet<>();
classes.add(AuthenticationEndpoint.class);
return classes;
}
#Override
public Map<String, Object> getProperties() {
final Map<String, Object> properties = new HashMap<>();
properties.put("jersey.config.server.provider.packages",
"api");//api-->here mention your yourpackage.to.scan"
return properties;
}
}

Logback ClassCircularityError

I changed from Windows to Ubuntu 17.04 and now I get an Error when I start the webapp on a Tomcat 8.0.36 via Eclipse Neon.3 Release (4.6.3).
java.lang.ClassCircularityError: ch/qos/logback/core/spi/FilterReply
The project is build via M2E has AspectJ in it.
Uses following SLF4J Dependencies:
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.21</version>
</dependency>
It work's under Windows Eclipse with almost same settings and installation.
Also it works when I mvn clean package (default ubuntu maven installation not eclipse one) and deployed it manually to the default Tomcat installation of Ubuntu.
I already changed my eclipse version to Oxygen and got the same problem.
I tried to change the versions of the dependencies too - same result.
I have debuged the code to a "ServletContextListener" that tries to get a JDNI object:
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.slf4j.LoggerFactory;
import org.slf4j.bridge.SLF4JBridgeHandler;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.classic.jul.LevelChangePropagator;
import ch.qos.logback.core.util.StatusPrinter;
// ....
#Override
public void contextInitialized(final ServletContextEvent sce) {
new LogRecord(Level.FINEST, "Ensure class is loaded!");
// Prepare logging context
final LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
context.reset();
// setup JUL to SLF4J log bridging
SLF4JBridgeHandler.removeHandlersForRootLogger();
SLF4JBridgeHandler.install();
final LevelChangePropagator levelChangePropagator = new LevelChangePropagator();
levelChangePropagator.setResetJUL(true);
levelChangePropagator.setContext(context);
levelChangePropagator.start();
context.addListener(levelChangePropagator);
// Load context values
String contextPath = sce.getServletContext().getContextPath().replaceAll("[^0-9a-zA-Z-_]", "");
if(contextPath.length() == 0){
contextPath = "ROOT";
}
context.putProperty("appName", contextPath);
final Boolean isProductiveVal = (Boolean) getJNDI(IS_PRODUCTIVE_JNDI);
// .....
private static Object getJNDI(final String jndiPath) {
try {
final Context initialContext = new InitialContext(); // << This line crashes
return initialContext.lookup(jndiPath);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
I have no clue what I could try to fix it. And also im not fully understand the problem. Tomcat tries to load a Class that reference it self?!
Does some one have a clue what I could check?
Full stack of Tomcat start.
Sep 06, 2017 5:05:36 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNUNG: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:MyProject' did not find a matching property.
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server version: Apache Tomcat/8.0.36
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server built: Jun 9 2016 13:55:50 UTC
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Server number: 8.0.36.0
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Name: Linux
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: OS Version: 4.10.0-33-generic
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Architecture: amd64
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Java Home: /usr/lib/jvm/java-8-openjdk-amd64/jre
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Version: 1.8.0_131-8u131-b11-2ubuntu1.17.04.3-b11
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: JVM Vendor: Oracle Corporation
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_BASE: /home/kani/eclipse-workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: CATALINA_HOME: /opt/tomcat8
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:37177
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.base=/home/kani/.jrebel
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.env.ide.plugin.version=7.0.14
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.env.ide.version=4.6.3
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.env.ide.product=Eclipse
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.env.ide=eclipse
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.notification.url=http://localhost:17434
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.workspace.path=/home/kani/eclipse-workspace
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Drebel.properties=/home/kani/.jrebel/jrebel.properties
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -agentpath:/opt/eclipse/plugins/org.zeroturnaround.eclipse.embedder_7.0.14.RELEASE/jrebel/lib/libjrebel64.so
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.base=/home/kani/eclipse-workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dcatalina.home=/opt/tomcat8
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dwtp.deploy=/home/kani/eclipse-workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Djava.endorsed.dirs=/opt/tomcat8/endorsed
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMATION: Command line argument: -Dfile.encoding=UTF-8
Sep 06, 2017 5:05:36 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMATION: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Sep 06, 2017 5:05:36 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["http-nio-8080"]
Sep 06, 2017 5:05:36 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Sep 06, 2017 5:05:36 PM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["ajp-nio-8009"]
Sep 06, 2017 5:05:36 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMATION: Using a shared selector for servlet write/read
Sep 06, 2017 5:05:36 PM org.apache.catalina.startup.Catalina load
INFORMATION: Initialization processed in 802 ms
Sep 06, 2017 5:05:36 PM org.apache.catalina.core.StandardService startInternal
INFORMATION: Starting service Catalina
Sep 06, 2017 5:05:36 PM org.apache.catalina.core.StandardEngine startInternal
INFORMATION: Starting Servlet Engine: Apache Tomcat/8.0.36
2017-09-06 17:05:37 JRebel: Directory '/home/kani/eclipse-workspace/MyProject/target/classes' will be monitored for changes.
2017-09-06 17:05:37 JRebel: Directory '/home/kani/eclipse-workspace/MyProject/target/m2e-wtp/web-resources' will be monitored for changes.
2017-09-06 17:05:37 JRebel: Directory '/home/kani/eclipse-workspace/MyProject/src/main/webapp' will be monitored for changes.
Sep 06, 2017 5:05:41 PM org.apache.jasper.servlet.TldScanner scanJars
INFORMATION: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Sep 06, 2017 5:05:41 PM org.apache.catalina.core.ApplicationContext log
INFORMATION: No Spring WebApplicationInitializer types detected on classpath
java.lang.ClassCircularityError: ch/qos/logback/core/spi/FilterReply
at ch.qos.logback.classic.LoggerContext.getTurboFilterChainDecision_0_3OrMore(LoggerContext.java:267)
at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:373)
at ch.qos.logback.classic.Logger.log(Logger.java:765)
at org.slf4j.bridge.SLF4JBridgeHandler.callLocationAwareLogger(SLF4JBridgeHandler.java:221)
at org.slf4j.bridge.SLF4JBridgeHandler.publish(SLF4JBridgeHandler.java:303)
at java.util.logging.Logger.log(Logger.java:738)
at java.util.logging.Logger.doLog(Logger.java:765)
at java.util.logging.Logger.logp(Logger.java:931)
at org.apache.juli.logging.DirectJDKLog.log(DirectJDKLog.java:180)
at org.apache.juli.logging.DirectJDKLog.debug(DirectJDKLog.java:103)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:361)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152)
at org.apache.catalina.startup.Catalina.start(Catalina.java:629)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.__invoke(DelegatingMethodAccessorImpl.java:43)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)

I changed to the Tomcat8 installation that I used in windows.
And it finally worked (I didn't know what the previous Head of did there).
The only difference I can see instantly is that it used Log4j also on Tomcat side. Maybe thats the difference. Sorry if someone else also have this problem and no solution.

When I click run, eclipse always goes to wrong path

In Eclipse, when I click run, it always go to the incorrect path on Eclipse browser. What I have done wrong?
For example; when I click testGet.java and click Run, Eclipse goes to http://localhost:8080/slwebservice/WEB-INF/classes/service/testGet.java. But, in the tutorial or Java Web video, Eclipse goes to a complete url like http://localhost:8080/slwebservice/test/ or something.
I'm using Windows 7, Java SDK 1.7, Eclipse Luna and Tomcat 7.0. I'm not familiar with Java.
Here is my web.xml :
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>myrest</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>service</param-name>
<param-value>testGet</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>myrest</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
When I click run, it seems that there are no exceptions on Tomcat. Here is my Tomcat log :
十月 05, 2015 9:07:28 下午 org.apache.tomcat.util.digester.SetPropertiesRule begin
警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:slervice' did not find a matching property.
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server version: Apache Tomcat/7.0.64
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server built: Aug 19 2015 17:18:06 UTC
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server number: 7.0.64.0
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Name: Windows 7
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Version: 6.1
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Architecture: amd64
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Java Home: C:\Program Files\Java\jdk1.7.0_79\jre
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Version: 1.7.0_79-b15
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Vendor: Oracle Corporation
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_BASE: D:\javatest\slservice\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_HOME: C:\Program Files\Apache Software Foundation\Tomcat 7.0
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.base=D:\javatest\slservice\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 7.0
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dwtp.deploy=D:\javatest\slservice\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 7.0\endorsed
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dfile.encoding=GBK
十月 05, 2015 9:07:28 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.7.0_79\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jdk1.7.0_79/bin/../jre/bin/server;C:/Program Files/Java/jdk1.7.0_79/bin/../jre/bin;C:/Program Files/Java/jdk1.7.0_79/bin/../jre/lib/amd64;C:\Program Files\Java\jdk1.7.0_79\bin;D:\JAVASDK\android_sdk\tools;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Lenovo\Bluetooth Software\;C:\Program Files\Lenovo\Bluetooth Software\syswow64;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;c:\PWRS\shared;C:\Program Files (x86)\Microsoft SQL Server\80\Tools\BINN;C:\Program Files (x86)\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\;C:\Program Files (x86)\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Sybase\SQL Anywhere 8\win32;C:\Program Files (x86)\Sybase\Shared\win32;C:\Program Files (x86)\Sybase\Shared\Sybase Central 4.1;C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files (x86)\Sybase\Shared\PowerBuilder;;C:\Program Files (x86)\Sybase\SQL Anywhere 10\x64;C:\Program Files (x86)\Sybase\SQL Anywhere 10\win32;C:\Program Files (x86)\Sybase\SQL Anywhere 10\Sybase Central 5.0.0\win32;C:\Program Files\SQL Anywhere 12\bin64;C:\Program Files\SQL Anywhere 12\bin32;C:\Program Files (x86)\Sybase\PowerBuilder 12.5;C:\Windows\Microsoft.NET\Framework\v4.0.30319;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\MySQL\MySQL Fabric 1.5.4 & MySQL Utilities 1.5.4 1.5\;C:\Program Files (x86)\MySQL\MySQL Fabric 1.5.4 & MySQL Utilities 1.5.4 1.5\Doctrine extensions for PHP\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\apache-maven\bin;;D:\eclipse;;.
十月 05, 2015 9:07:28 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-bio-8080"]
十月 05, 2015 9:07:28 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-bio-8009"]
十月 05, 2015 9:07:28 下午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 698 ms
十月 05, 2015 9:07:28 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
十月 05, 2015 9:07:28 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.64
十月 05, 2015 9:07:29 下午 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\javatest\slservice\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\slervice\WEB-INF\lib\javax.servlet-api-3.0.1.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class
十月 05, 2015 9:07:30 下午 org.apache.catalina.startup.TldConfig execute
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
十月 05, 2015 9:07:31 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-bio-8080"]
十月 05, 2015 9:07:31 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-bio-8009"]
十月 05, 2015 9:07:31 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 2515 ms
Any help would be appreciated.
Regards
Ken

What are you using here? SpringMVC? No idea what you are asking for... I assume because you are chinese...
Either way it looks like spring, therefore this segment should be changed,
<servlet-mapping>
<servlet-name>myrest</servlet-name>
<url-pattern>/</url-pattern> // remove the *
</servlet-mapping>
</web-app>

Tomcat server "HTTP status 404" on Eclipse, working fine on windows

I am pretty new to all the servers thing so excuse me if I don't have enough knowledge to explain the situation correctly.
Basicly, I run the Tomcat server from my windows computer and it's working perfectly fine, I see the welcome page at localhost. However, when I try to deploy a project and run it with Eclipse, I see the HTTP Status 404 error.
I have read so far plenty of articles and opinions on the internet, some of them I couldn't quite understand, but what I have tried is to switch the server's location. However, when I do that, some SEVERE errors appear in the console, and I'm unable to restart the server except for if I restart Eclipse itself.
This is the full stacktrace:
Aug 02, 2015 5:11:44 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:webproject.filecounter' did not find a matching property.
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version: Apache Tomcat/8.0.24
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built: Jul 1 2015 20:19:55 UTC
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number: 8.0.24.0
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name: Windows 7
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version: 6.1
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture: amd64
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home: C:\Program Files\Java\jre1.8.0_20
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version: 1.8.0_20-b26
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor: Oracle Corporation
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE: C:\Users\Дени\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME: C:\Program Files\Apache Software Foundation\Tomcat 8.0
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\Users\Дени\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 8.0
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\Users\Дени\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 8.0\endorsed
Aug 02, 2015 5:11:44 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1251
Aug 02, 2015 5:11:44 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_20\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jdk1.8.0_20/jre/bin/server;C:/Program Files/Java/jdk1.8.0_20/jre/bin;C:/Program Files/Java/jdk1.8.0_20/jre/lib/amd64;C:\Users\Дени\Downloads\eclipse\jre\bin\javaw.exe;C:\OrCAD\OrCAD_16.3_Demo\tools\PSpice;C:\OrCAD\OrCAD_16.3_Demo\tools\PSpice\Library;C:\OrCAD\OrCAD_16.3_Demo\tools\Capture;C:\OrCAD\OrCAD_16.3_Demo\tools\bin;C:\OrCAD\OrCAD_16.3_Demo\OpenAccess\bin\win32\opt;C:\OrCAD\OrCAD_16.3_Demo\tools\fet\bin;C:\OrCAD\OrCAD_16.3_Demo\tools\pcb\bin;C:\apache-tomcat-8.0.24;C:\Program Files\Java\jdk1.8.0_20;D:\New folder\Downloads\eclipse;;.
Aug 02, 2015 5:11:44 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
Aug 02, 2015 5:11:45 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Aug 02, 2015 5:11:45 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
Aug 02, 2015 5:11:45 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Aug 02, 2015 5:11:45 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2287 ms
Aug 02, 2015 5:11:45 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Aug 02, 2015 5:11:45 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.0.24
Aug 02, 2015 5:11:45 PM org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [129] milliseconds.
Aug 02, 2015 5:11:46 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Aug 02, 2015 5:11:46 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Aug 02, 2015 5:11:46 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 956 ms
Aug 02, 2015 5:12:16 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/webproject.filecounter] has started
Aug 02, 2015 5:12:16 PM org.apache.catalina.core.StandardContext reload
SEVERE: Exception starting Context with name [/webproject.filecounter]
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/webproject.filecounter]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3746)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:292)
at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5528)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1377)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1381)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1381)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1349)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot#623ebb68]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4845)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4975)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 8 more
Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\Дени\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps\webproject.filecounter] is not valid
at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:723)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:684)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 11 more
Aug 02, 2015 5:12:16 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/webproject.filecounter] is completed
I'll appreciate any help, but, as I said, I'm pretty new to servlets and I'm sorry if I didn't explain something correctly.
I'm using Eclipse Luna and Tomcat 8.0 versions.

It says that the file webproject.filecounter is not valid. Maybe you can try to delete the . metadata.