java.lang.NoClassDefFoundError: org/apache/ws/commons/schema/resolver/URIResolver
<p>I'm trying to create a simple "Hello" web service and I'm getting the following error:</p>

<pre><code>type Exception report

message Servlet.init() for servlet AxisServlet threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet AxisServlet threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)

root cause

java.lang.NoClassDefFoundError: org/apache/ws/commons/schema/resolver/URIResolver
org.apache.axis2.deployment.ModuleDeployer.deploy(ModuleDeployer.java:128)
org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:144)
org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:585)
org.apache.axis2.deployment.RepositoryListener.init(RepositoryListener.java:264)
org.apache.axis2.deployment.RepositoryListener.init2(RepositoryListener.java:66)
org.apache.axis2.deployment.RepositoryListener.&lt;init&gt;(RepositoryListener.java:61)
org.apache.axis2.deployment.DeploymentEngine.loadRepository(DeploymentEngine.java:152)
org.apache.axis2.deployment.WarBasedAxisConfigurator.getAxisConfiguration(WarBasedAxisConfigurator.java:233)
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:64)
org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:620)
org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:471)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)

root cause

java.lang.ClassNotFoundException: org.apache.ws.commons.schema.resolver.URIResolver
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1856)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1705)
org.apache.axis2.deployment.ModuleDeployer.deploy(ModuleDeployer.java:128)
org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:144)
org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:585)
org.apache.axis2.deployment.RepositoryListener.init(RepositoryListener.java:264)
org.apache.axis2.deployment.RepositoryListener.init2(RepositoryListener.java:66)
org.apache.axis2.deployment.RepositoryListener.&lt;init&gt;(RepositoryListener.java:61)
org.apache.axis2.deployment.DeploymentEngine.loadRepository(DeploymentEngine.java:152)
org.apache.axis2.deployment.WarBasedAxisConfigurator.getAxisConfiguration(WarBasedAxisConfigurator.java:233)
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:64)
org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:620)
org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:471)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
</code></pre>

<p>Can somebody help? I searched on the Internet and I found that there is a file httpcore-xx.jar that must be placed in apache tomcat lib directory. I tried that but it didn't work. I'm using ubuntu 14.04 LTS and eclipse. I also tried to clean my Project and build again. It didn't work. What I'm facing is that the page is loading on the web Browser but when I click on services the previous error comes up. The tutorial I'm trying to implement is <a href="http://codeoncloud.blogspot.gr/2012/12/create-java-web-service-in-eclipse_3982.html" rel="noreferrer">http://codeoncloud.blogspot.gr/2012/12/create-java-web-service-in-eclipse_3982.html</a></p>