Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.atlassian.seraph.service.rememberme.DefaultRememberMeConfiguration]: 
Constructor threw exception; nested exception is java.lang.RuntimeException: Could not load security config 'seraph-config.xml': 
Exception configuring from 'seraph-config.xml : com.atlassian.seraph.config.ConfigurationException: Could not getRequest service: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor : java.lang.ClassNotFoundException: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor
Caused by: java.lang.RuntimeException: Could not load security config 'seraph-config.xml': Exception configuring from 'seraph-config.xml : 
com.atlassian.seraph.config.ConfigurationException: Could not getRequest service: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor : java.lang.ClassNotFoundException: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor
	at com.atlassian.seraph.config.SecurityConfigFactory.loadInstance(SecurityConfigFactory.java:60)
	at com.atlassian.seraph.config.SecurityConfigFactory.getInstance(SecurityConfigFactory.java:21)
	at com.atlassian.seraph.service.rememberme.DefaultRememberMeConfiguration.<init>(DefaultRememberMeConfiguration.java:21)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
...
Caused by: com.atlassian.seraph.config.ConfigurationException: Exception configuring from 'seraph-config.xml : 
com.atlassian.seraph.config.ConfigurationException: Could not getRequest service: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor : java.lang.ClassNotFoundException: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor
	at com.atlassian.seraph.config.SecurityConfigImpl.<init>(SecurityConfigImpl.java:170)
	at com.atlassian.seraph.config.SecurityConfigFactory.loadInstance(SecurityConfigFactory.java:56)
	... 74 more
Caused by: com.atlassian.seraph.config.ConfigurationException: Could not getRequest service: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor : java.lang.ClassNotFoundException: 
com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor
	at com.atlassian.seraph.config.SecurityConfigImpl.configureInterceptors(SecurityConfigImpl.java:368)
	at com.atlassian.seraph.config.SecurityConfigImpl.<init>(SecurityConfigImpl.java:163)
	... 75 more
Caused by: java.lang.ClassNotFoundException: com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
	at com.opensymphony.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:104)
	at com.atlassian.seraph.config.SecurityConfigImpl.configureInterceptors(SecurityConfigImpl.java:360)
	... 76 more

    <interceptors>
        <interceptor name="session-invalidator" class="com.atlassian.confluence.security.seraph.SessionInvalidatingLoginInterceptor"/>
    </interceptors>