Issue: Apache tomcat service stop automatically.
Reason:
Apache memory utilization is high.
Solution:
Go to Below path and just increase the memory allocation for Apche tomcat
C:\Program Files\Apache Software Foundation\Tomcat 7.0\bin
There you will find
Tomcat7w
Right click and run with administrator
Pop-up window will appear in that go to Java.
Memory should be atleast some __GB accordingly to PC RAM.