This error message shows that the Tomcat is 8.0.30, and I am using JDK 8. I am creating a Spring-boot project. Some suggested that JDK 8 should be used but I indeed am using
In order to upgrade the tomcat version for the tomcat7-maven-plugin.
7.0.93 org.apache.tomcat.maven tomcat7-maven-plugin 2.2 org.apache.tomcat.embed tomcat-embed-core ${tomcat7-version}