javax.servlet.ServletException: Not running on Jetty, JSR-356 support unavailable

Question

I am facing a problem while deploying a war on to tomcat instance,

Tomcat version details,

D:\\Kiran\\Kiran\\Softwares DH\\Webservers\\apache-tomcat-         


        

Answer 1

Search in pom.xml for

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jetty</artifactId>
</dependency>

and remove it.

Answer 2

The problem is identified to be confusion over the websocket jars of tomcat and my application jars. I have removed it from the war file and it started working,

I used maven plug in to remove the jars as below,

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <configuration>
        <packagingExcludes>WEB-INF/lib/websocket-*.jar</packagingExcludes>
    </configuration>
</plugin>

The jars which were creating problem are,