Spring Boot app with embedded init.d script not starting on reboot - service

Question

Spring Boot has a handy feature that it will embed an init.d starup script into an executable jar if you configure the maven plugin to do so:
http://docs.spring.io/spring-boot/docs/current/reference/html/deployment-install.html#deployment-install
So I am "installing" a Spring Boot app (executable fat jar) as a service in Centos 6.6 using the above method.
So far so good. I create a link to my jar and set the permissions:
sudo ln -s /path/to/myapp.jar /etc/init.d/my-service
sudo chmod 0755 /etc/init.d/my-service
And I can successfully start the application:
sudo service my-service start
However, I want the app to come up on startup, so I use the chkconfig utility:
sudo chkconfig --add my-service
sudo chkconfig my-service on
No errors with those commands, but when I reboot Centos the service does not auto-start.
running:
sudo service my-service status
shows:
Not running
running:
chkconfig --list my-service
shows:
my-service 0:off 1:off 2:on 3:on 4:on 5:on 6:off
Everything looks good, but it's not starting. At this point I can manually start the service with "sudo service my-service start" and it comes back up, but it's not auto-starting on boot.
Any ideas?
Thanks

Answer 1

Problem solved. Turned out to be a path issue and my fault. The path where the application lived was a mounted directory that was not available at boot time.

Answer 2

I have the similar issue, I got the following error message when I run service myapp start
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/springframework/boot/loader/JarLauncher : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.springframework.boot.loader.JarLauncher. Program will exit.
However I could make it work via directly run /etc/init.d/app start.
Finally I found the problem is the default jdk is 1.6 although the java is 1.8 in the current user. Then I changed the symbolic and it worked.