When accessing satellite 5.7 Web UI, it shows error: java.lang.NoClassDefFoundError: com.redhat.rhn.common.localization.LocalizationService

Issue

• When accessing satellite 5.7 Web UI, it shows the below error in /var/log/tomcat6/catalina.out

Caused by:
java.lang.NoClassDefFoundError: com.redhat.rhn.common.localization.LocalizationService (initialization failure)
        at java.lang.J9VMInternals.initialize(J9VMInternals.java:139)
        at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.resolveLocale(LocalizedEnvironmentFilter.java:136)
        at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.initializeContext(LocalizedEnvironmentFilter.java:81)
        at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:66)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        ... 23 more
Caused by:
com.redhat.rhn.common.localization.LocalizationException: Class not found when trying to initalize the LocalizationService: java.lang.ClassNotFoundException: com.r                                                                                        edhat.rhn.frontend.strings.java.StringPackage
        at com.redhat.rhn.common.localization.LocalizationService.addKeysToMap(LocalizationService.java:130)
        at com.redhat.rhn.common.localization.LocalizationService.initService(LocalizationService.java:104)
        at com.redhat.rhn.common.localization.LocalizationService.<init>(LocalizationService.java:85)
        at com.redhat.rhn.common.localization.LocalizationService.<clinit>(LocalizationService.java:71)
        at java.lang.J9VMInternals.initializeImpl(Native Method)
        at java.lang.J9VMInternals.initialize(J9VMInternals.java:199)