Vaadin with SpringBoot


I am using Spring Boot 1.4.0.RELEASE and Vaadin 7.6.5
I am trying to open a jsp page as wel come file. for doing this i SpringBoot i need the following dependency.

org.apache.tomcat.embed tomcat-embed-jasper provided

When i add this dependency its working fine showing the jsp files but with the following error.

2016-10-20 18:41:10.167 WARN 3392 — [ost-startStop-1]
o.a.tomcat.util.scan.StandardJarScanner : Failed to scan [file:/C:/Users/vega/.m2/repository/com/vaadin/vaadin-sass-compiler/0.9.13/sac-1.3.jar]
from classloader hierarchy C:\Users\vega.m2\repository\com\vaadin\vaadin-sass-compiler\0.9.13\sac-1.3.jar (The system cannot find the file specified)

Nagaraj RC

Problem relates to the Tomcat version used by Spring boot. See for more info.

As the solution simply downgrade the Tomcat version used by Spring in your pom.xml file:


This is the best solution . Although the error did nothing but i still want to remove it and this is the solution