Getting NoSuchMethodError:javax.servlet.ServletContext.getVirtualServerName()

Question

I am facing an issue during deployment of a service in Tomcat 8. Getting following error :

Caused by: java.lang.NoSuchMethodError: javax.servlet.Ser

Answer 1

The method getVirtualServerName has been added in ServletContext in Servlet 3.1. See the java doc's method getVirtualServerName.

This problem has 3 primary causes:

1. Your servlet version is older than 3.1.

2. Some other jar has the servlet with a version older than 3.1.

3. Your tomcat version is older than 8

to solve it, you can try the below way.

I. Check your pom.xml for the code below.

  
       javax.servlet
       javax.servlet-api
       3.1.0
    

if your pom.xml has the above code, it would still has that problem. you can do the second way.

II. to check your other jar has refer to the javax.servlet-api jar. for example, the org.apache.santuario has refer to the javax.servlet-api jar. the pom.xml:

  
    org.apache.santuario  
    xmlsec  
    1.4.3   
 

but when you look at the maven dependencies, it refer to the javax.servlet-api jar whose version is 2.3 older than 3.1.

so you should exclude the 2.3 version. pom.xml:

  
  
    org.apache.santuario  
    xmlsec  
    1.4.3  
      
          
            javax.servlet  
            servlet-api  
          
      
  

  
  
    javax.servlet  
    javax.servlet-api  
    3.1.0  
 

III. spring boot run the default tomcat 7. so define your tomcat version 8 instead of tomcat 7. so add the code your pom.xml:

   
        UTF-8
        UTF-8
        1.8
        8.5.5