Talend TAC frequently giving Error : servlet unreachable !! Chec

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Talend TAC frequently giving Error : servlet unreachable !! Chec

Hi Talend TAC frequently Giving Error "Error : servlet unreachable !! Check server log."
and loged out user from Web URL.
I have checek Apache tomcat log ,
refer below log,
Any Help appriciate
SEVERE: The web application registered the JDBC driver but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Feb 19, 2015 9:42:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application appears to have started a thread named but has failed to stop it. This is very likely to create a memory leak.
Seventeen Stars

Re: Talend TAC frequently giving Error : servlet unreachable !! Chec

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