Develop Reference

ClassNotfoundException in Maven Spring framework [duplicate]

I am currently playing with some proof-of-concept work in Spring Boot and GCP data storage.
My pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.4.0</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-gcp-data-datastore</artifactId>
<version>1.2.6.RELEASE</version>
</dependency>
Issue: Spring Boot fails to start
When I attempt to launch the application, I get:
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/metrics/ApplicationStartup
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:251)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:264)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298)
What I tried
I tried adding the Actuator dependency.
But that did not do the trick.
I cannot figure out what dependency I am missing. I see the class definition here in 5.3.0-M2 documentation, but I'm not sure what dependency it exists in.
I also tried adding following metrics dependencies:
spring-cloud-gcp-starter-metrics
spring-metrics
spring-cloud-stream-metrics
I searched in findjar.com with no luck.
I wouldn't mind disabling it as well if that is possible.
Update:
I added:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.3.1</version>
</dependency>
Which gives me a new error:
An attempt was made to call a method that does not exist. The attempt
was made from the following location:
org.springframework.boot.SpringApplication.run(SpringApplication.java:324)
The following method did not exist:
'void org.springframework.context.ConfigurableApplicationContext.setApplicationStartup(org.springframework.core.metrics.ApplicationStartup)'
The method's class,
org.springframework.context.ConfigurableApplicationContext, is
available from the following locations:
...
Action:
Correct the classpath of your application so that it contains a
single, compatible version of
org.springframework.context.ConfigurableApplicationContext

I was able to solve this by downgrading Spring Boot:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.3.3.RELEASE</version>
</dependency>
Guess it's just not compatible with 2.4.0 yet.
Specifically I also had to ensure that I used 2.3.3.RELEASE and not anything more recent due to other issues I ran across.

I don't have the spring-cloud dependency, but when upgrading to Spring Boot 2.4 from 2.3 I got the same error.
Exception in thread "main" java.lang.NoClassDefFoundError:
org/springframework/core/metrics/ApplicationStartup
Per conversation in this thread (https://github.com/spring-projects/spring-boot/issues/24880) I upgraded to Spring Framework 5.3.3 and it fixed the problem.

I had the same issue caused by an old version of spring-context JAR file loaded instead of the appropriate version.
Ensure that there were no reminiscence of old libraries in your classpath.

I had a similar issue, and it was resolved by adding the following maven dependency:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.3.8</version>
</dependency>

I was having the same issue but with:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.2.9.RELEASE</version>
<scope>test</scope>
</dependency>
And the error disappeared after I upgraded to:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.3</version>
<scope>test</scope>
</dependency>

May this help, upgrade spring-cloud to the latest version.
This works for me when I faced your first error :
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/metrics/ApplicationStartup
See the twitter thread here, thanks to Stéphane and Arnaud for the help.

I had the same problem, but that was caused by spring-security-ldap that i also import in version 5.4.x
Upgrade spring-security-ldap to version 5.5.0 solved the problem for me.

I had this issue when adding a Spring Boot test to a library for the first time. In my case, the library did not have a Spring Boot application.
This did the trick:
#SpringBootApplication
public class TestApplication {
public static void main(final String[] args) {
SpringApplication.run(TestApplication.class, args);
}
}
Using only spring-boot-starter-test as a Spring dependency.

Check if another dependency doesn't have dependency to spring-core with older version

May this will help someone, who is facing this error.
=> Error should look like this:
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/core/metrics/ApplicationStartup
at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:229)
at org.springframework.context.support.GenericApplicationContext.<init>(GenericApplicationContext.java:112)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:67)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:91)
Solution to the Problem:-
Go to Project folder\ Right click\ Maven\ Update maven project.
Check your Spring version (pom.xml-> view the properties).
Change the Spring version to an older/new version..Otherwise use this
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
<spring.version>5.2.0.RELEASE</spring.version> <!--add this version-->
</properties>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<dependency>
<groupId>org.springframework</groupId> <!-- sql dependency for jdbc-->
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
After adding above things, Save it(Please wait for the code to build..).
Run your Program
All The Best Guys, Let's Move Togther

I had the same Spring Boot ClassNotFoundException ApplicationStartup issue, the solution was for me to ensure that the spring boot version in my gradle plugin is the same than the dependencies in my build.gradle.kts like:
plugins {
id("org.springframework.boot") version "2.5.3"
...
}
dependencies {
implementation("org.springframework.boot:spring-boot:2.5.3")
...
}

Sporadic NoClassDefFoundError for org/aspectj/runtime/reflect/JoinPointImpl

We are using aspectj (1.8.5) with Java (1.7) and Spring (3.2.3).
We use load time weaving.
Once in a while we see these errors is the log of our application when it starts. Sometimes the start up of the application fails (due to the errors) and sometimes the application starts correctly.
The error:
ERROR TaskUtils.java:95 - Unexpected error occurred in scheduled task.
java.lang.NoClassDefFoundError: org/aspectj/runtime/reflect/JoinPointImpl
at org.aspectj.runtime.reflect.Factory.makeJP(Factory.java:164) ~[aspectjweaver-1.8.5.jar:1.8.5]
This occurs multiple times for about half a minute and then the application succeeds to overcome this or not.
Perhaps that fact that we're running on Spring might cause some interference?
applicationContext.xml:
<context:load-time-weaver aspectj-weaving="on"/>
Tomcat's context.xml:
<Loader loaderClass="org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader"/>
In our pom.xml we have these dependencies (related to aspectJ and spring aop):
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument-tomcat</artifactId>
<version>${springframework.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>
Can someone please shed some light on this?
Thank you.

Try adding the following dependency :
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.6</version>
</dependency>

cannot access org.springframework.core.env.EnvironmentCapable

I'm trying to get a spring bean in a web application using it:
WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
AClass aClass = (aClass) wac.getBean("aClass");
And, when I run compile/test/package with maven, an error occurs:
cannot access org.springframework.core.env.EnvironmentCapable
[ERROR] class file for org.springframework.core.env.EnvironmentCapable not found
The most strange is that org.springframework.core.env.EnvironmentCapable exists! :/
Basic Project Configuration:
Spring 3.1.1.RELEASE (There isn't other spring version in classpath)
Maven 3
JSF 2.1
Servlet API 2.5
Any idea is welcome!

Finally, I've solved it! :)
In the pom.xml file, I had to define the scope of spring's dependencies to compile. (Yes, I know that is the default scope of dependencies but for some reason maven was not capable of the job). See a piece of my pom.xml that made the problem disapear:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
Note that:
If you're having this problem, make sure that you're using a spring
version 3.1 or higher.
Remember that ${spring.version}, in my case, is 3.1.1.RELEASE.
I hope that it helps more people.

I was facing the exact same issue, maven complains from org.springframework.core.env.EnvironmentCapable, even with the file there, inside the jar: C:\Users\fabio\.m2\repository\org\springframework\spring-core\4.3.12.RELEASE\spring-core-4.3.12.RELEASE.jar.
The solution im my case was delete the .m2 folder, so maven downloaded all the jars again. Maybe it was some currupted file.
I hope it helps some one!

Me too face this issue. I used Spring 4.1.6 with maven 3 along with RabbitMQ.
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-amqp</artifactId>
<version>1.1.4.RELEASE</version>
</dependency>
This dependency forced tomcat to die and showing these issue. I havn't gotten why it is making trouble. but finally I explicitly include jar in lib folder and this is how I resolved this issue.

Add this dependency to the pom.xml .You can fixed it.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>1.4.2.RELEASE</version>
</dependency>

As I imported a project from GitHub without checking its spring-boot version had caused me the same problem, thus changing spring-boot version has resolved my problem, I was using version 1.1.4 moving to 2.2.5 (or latest releases ) will download all the needed dependencies
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>

Bringing spring-data-jpa into a project causes Spring to stop processing #RequestMapping annotations

I have a Maven/Java project using Spring 3.2.5.RELEASE, which uses component scanning to pick up an #Controller with a number of #RequestMapping annotations and set up the appropriate endpoints.
As soon as I bring in a dependency on spring-data-jpa 1.4.1.RELEASE, the mappings stop being wired up (although the server still starts up without any errors).

The problem is that when you add spring-data-jpa 1.4.1.RELEASE to the pom.xml, it download spring-orm-3.1.4 and others 3.1.4 dependencies. Those Dependencies are incompatible with 3.2.5 so you need do download manually.
To solve the problem you need to say maven to use the correct dependencies. ie. put in the pom.xml the next dependencies:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>

org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class

I replaced j2ee.jar with servle-api.com from my tomcat 6.0 installation directory:
And that yields the error below. I'm presently trying to figure out the cause. What might the problem be.
I have a the bean defined in a configuration file: Sempedia-service.xml
as follows
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="sempediaSearchService"
class="com.service.SempediaSearchManager" />
</beans>
my web.xml specifies the following beans:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/Sempedia-service.xml,/WEB-INF/Sempedia-persistence.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
Stack Trace
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.service.SempediaSearchManager] for bean with name 'sempediaSearchService' defined in ServletContext resource [/WEB-INF/Sempedia-service.xml]; nested exception is java.lang.ClassNotFoundException: com.service.SempediaSearchManager
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1141)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
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:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: com.service.SempediaSearchManager
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:211)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:385)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1138)
... 24 more

The problem is that there is no class called com.service.SempediaSearchManager on your webapp's classpath. The most likely root causes are:
the fully qualified classname is incorrect in /WEB-INF/Sempedia-service.xml; i.e. the class name is something else,
the class is not in your webapp's /WEB-INF/classes directory tree or a JAR file in the /WEB-INF/lib directory.
EDIT : The only other thing that I can think of is that the ClassDefNotFoundException may actually be a result of an earlier class loading / static initialization problem. Check your log files for the first stack trace, and look the nested exceptions, i.e. the "caused by" chain. [If a class load fails one time and you or Spring call Class.forName() again for some reason, then Java won't actually try to load a second time. Instead you will get a ClassDefNotFoundException stack trace that does not explain the real cause of the original failure.]
If you are still stumped, you should take Eclipse out of the picture. Create the WAR file in the form that you are eventually going to deploy it, then from the command line:
manually shutdown Tomcat
clean out your Tomcat webapp directory,
copy the WAR file into the webapp directory,
start Tomcat.
If that doesn't solve the problem directly, look at the deployed webapp directory on Tomcat to verify that the "missing" class is in the right place.

I got the same error and the cause was the directory:
U:.....WEB\WebRoot\WEB-INF\classes\com\yourcompany\cc\dao
was corrupted(directory or file not readable or damaged)..
solved with
renaming the directory WEB-INF\classes as WEB-INF\classes_old
Eclipse's Project menu--> Clean (to recreate directories)
redeploy --> restart server.

Check your dependencies.
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SchoolApp</groupId>
<artifactId>SchoolApp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<hibernate.version>4.2.0.Final</hibernate.version>
<mysql.connector.version>5.1.21</mysql.connector.version>
<spring.version>3.2.2.RELEASE</spring.version>
</properties>
<dependencies>
<!-- DB related dependencies -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.connector.version}</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
<!-- SPRING -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Spring Security -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>3.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>3.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>3.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>3.1.3.RELEASE</version>
</dependency>
<!-- CGLIB is required to process #Configuration classes -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
<!-- Servlet API and JSTL -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test-mvc</artifactId>
<version>1.0.0.M1</version>
<scope>test</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring-maven-milestone</id>
<name>Spring Maven Milestone Repository</name>
<url>http://maven.springframework.org/milestone</url>
</repository>
</repositories>
<build>
<finalName>spr-mvc-hib</finalName>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

I have faced similar problem
So
I just do
1.update Maven Project
2.install maven.

I have the same problem. I checked my /WEB-INF/classes based on Stephen's recommendation:
the class is not in your webapp's /WEB-INF/classes directory tree or a JAR file in the /WEB-INF/lib directory.
I discovered I have an outdated jar file. Replacing it with the latest jar file solved the issue.

i recently experienced this issue when i was trying to build and suddenly the laptop battery ran out of charge. I just removed all the servers from eclipse and then restore it. after doing that, i re-built the war file and it worked.

Just leaving this here for future visitors:
In my case the /WEB-INF/classes directory was missing. If you are using Eclipse, make sure the .settings/org.eclipse.wst.common.component is correct (Deployment Assembly in the project settings).
In my case it was missing
<wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
<wb-resource deploy-path="/WEB-INF/classes" source-path="/src/test/resources"/>
This file is also a common source of errors as mentioned by Anuj (missing dependencies of other projects).
Otherwise, hopefully the other answers (or the "Problems" tab) will help you.

i dont know whether it is relevant to your issue, i got similar issue which i got solved by
1) In eclipse right click server and clean
if it still didnt work
2) export the project and delete the project create the project with same name and import the project and add the project to server and run.