Contact us
Get started
Loading...
Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon
TUTORIAL

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

Calling javascript synchronously by Enver Haase, 3 weeks ago
Recent Posts
Vaadin Forum3. Vaadin 6, 7, 8

SuchMethodError: javax.servlet.ServletContext.getVirtualServerName()Ljava/l

Roland Polzer
6 years ago Dec 09, 2016 12:22pm

I get the following exception

Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getVirtualServerName()Ljava/lang/String;
        at org.apache.catalina.authenticator.AuthenticatorBase.startInternal(AuthenticatorBase.java:1125) ~[tomcat-embed-core-8.5.6.jar!/:8.5.6]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.6.jar!/:8.5.6]

when I start my Spring Boot application using Vaadin. The reason is that Spring Boot seems to require a specific version of javax.servlet.ServletContext. Starting with -verbose:class I see that this class is loaded from gwt-user-2.7.0.vaadin4.jar

Why does Vaadin/GWT come with its own version of ServletContext and what can I do to prevent the error. I had the error before and solved it by moving the dependency on vaadin-client to the end of my dependencies by now even that does not help anymore

Thanks,
Roland