Is this very likely to create a memory leak in Tomcat?

SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-269] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-270] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-271] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-272] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-273] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-274] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-275] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-276] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-277] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-278] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-279] but has failed to stop it. This is very likely to create a memory leak.
May 26, 2015 4:12:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/scheduler] appears to have started a thread named [Timer-280] but has failed to stop it. This is very likely to create a memory leak.SEVERE: The web application [/scheduler] appears