Unexpected Exception caught setting

2018-08-30 11:21:41,147 ERROR [qtp1342443276-29] interceptor.ParametersInterceptor (ParametersInterceptor.java:234) - Developer Notification (set struts.devMode to false to disable this message):

Unexpected Exception caught setting 'cookieNamessocookie' on 'class check.x.com.SSOAction: Error setting expression 'cookieNamessocookie' with value ['', ]

2018-08-30 11:21:41,148 ERROR [qtp1342443276-29] interceptor.ParametersInterceptor (ParametersInterceptor.java:234) - Developer Notification (set struts.devMode to false to disable this message):

Unexpected Exception caught setting 'cookieValuesso' on 'class check.x.com.SSOAction: Error setting expression 'cookieValuesso' with value ['', ]