org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]

org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost]

Am deploying an application repair-service on Apache Tomcat server using
Eclipse, but the issue seems that the application is not getting copied in
the webapps folder i.e its not getting published.
HTTPConnectionManager class is already present in the jar in build path.
Sep 09, 2013 1:24:46 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/repair-service] has started
Sep 09, 2013 1:25:01 PM org.apache.catalina.core.StandardContext reload
SEVERE: Exception starting Context with name [/repair-service]
org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/repair-service]]
`enter code here`at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at
org.apache.catalina.core.StandardContext.reload(StandardContext.java:3926)
at
org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1271)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1440)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:301)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at
org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1374)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1519)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError:
org/apache/commons/httpclient/HttpConnectionManager
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Unknown Source)
at java.lang.Class.getDeclaredFields(Unknown Source)
at
org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
at
org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:261)
at
org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:140)
at
org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:67)
at
org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:405)
at
org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
at
org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 11 more
Caused by: java.lang.ClassNotFoundException:
org.apache.commons.httpclient.HttpConnectionManager
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
... 25 more
Sep 09, 2013 1:25:01 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/repair-service] is completed