I have deployed a WAR file in the webapps folder in my tomcat. And when I am starting my tomcat, like below

C:\apache-tomcat-6.0.35\bin>startup.bat
Using CATALINA_BASE:   "C:\apache-tomcat-6.0.35"
Using CATALINA_HOME:   "C:\apache-tomcat-6.0.35"
Using CATALINA_TMPDIR: "C:\apache-tomcat-6.0.35\temp"
Using JRE_HOME:        "C:\Program Files (x86)\IBM\RationalSDLC\Common\Java5.0\jre"
Using CLASSPATH:       "C:\apache-tomcat-6.0.35\bin\bootstrap.jar"

I am getting this below exception-

SEVERE: Error deploying web application archive DirectoryServer.war
java.lang.UnsupportedClassVersionError: (com/services/rest/Listener) bad major version at offset=6 (unable to load class com.services.rest.Listener)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    at org.apache.catalina.startup.WebAnnotationSet.loadClassAnnotation(WebAnnotationSet.java:145)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:73)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:56)
    at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:297)
    at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1078)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4612)
    at org.apache.catalina.core.ContainerBase.addChildInternal(Cont
apache tomcat unsupported-class-version
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