ApplicationContext.populateSessionTrackingModes in Tomcat7 -


we migrating tomcat apache 5.5.9 tomcat 7.0.10 getting null pointer exception when application executed.

the exception same mentioned in question

migrate embedded tomcat 5 tomcat 7

if has suggestions please let me know. tried in version of tomcat 7.0.x still same issue.

i attaching call stack of dump.

at java.lang.thread.run(unknown source) caused by: java.lang.nullpointerexception                @ org.apache.catalina.core.applicationcontext.populatesessiontrackingmodes(applicationcontext.java:1188)                @ org.apache.catalina.core.applicationcontext.<init>(applicationcontext.java:127)                @ org.apache.catalina.core.standardcontext.getservletcontext(standardcontext.java:2211)                @ org.apache.catalina.core.standardcontext.postworkdirectory(standardcontext.java:5989)                @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:4960)                @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145)                @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1033)                @ org.apache.catalina.core.standardhost.startinternal(standardhost.java:774)                @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145)                @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1033)                @ org.apache.catalina.core.standardengine.startinternal(standardengine.java:291)                @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145)                @ org.apache.catalina.startup.embedded.startinternal(embedded.java:823)                @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145)

hi thomas lot reply .the complete call stack follows caused by: java.lang.nullpointerexception @ org.apache.catalina.core.applicationcontext.populatesessiontrackingmodes(applicationcontext.java:1188) @ org.apache.catalina.core.applicationcontext.(applicationcontext.java:127) @ org.apache.catalina.core.standardcontext.getservletcontext(standardcontext.java:2211) @ org.apache.catalina.core.standardcontext.postworkdirectory(standardcontext.java:5989) @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:4960) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1033) @ org.apache.catalina.core.standardhost.startinternal(standardhost.java:774) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1033) @ org.apache.catalina.core.standardengine.startinternal(standardengine.java:291) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.startup.embedded.startinternal(embedded.java:823) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ com.start.las.ls.lmsembed.tomcat.tomcatembed.setstatus(tomcatembed.java:93)


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