com.vaadin.flow.server.startup.ServletVerifier API 12.0.0 | Vaadin

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com.vaadin.flow.server.startup.

java.lang.Object
- com.vaadin.flow.server.startup.ServletVerifier

All Implemented Interfaces:

javax.servlet.ServletContainerInitializer
```
public class ServletVerifier
extends Object
implements javax.servlet.ServletContainerInitializer
```
Verify the servlet version on container initialization.
In cases of non compatible servlet version application deployment will fail.

Constructor Summary

Constructors
Constructor and Description

ServletVerifier()

Method Summary

All Methods
Modifier and Type	Method and Description
`void`	`onStartup(Set<Class<?>> c, javax.servlet.ServletContext ctx)`
`static void`	`verifyServletVersion()` Verify that the used servlet version is not too old.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ServletVerifier
```
public ServletVerifier()
```
- Method Detail
  - onStartup
```
public void onStartup(Set<Class<?>> c,
                      javax.servlet.ServletContext ctx)
               throws javax.servlet.ServletException
```
    Specified by:
    
    onStartup in interface javax.servlet.ServletContainerInitializer
    
    Throws:
    
    javax.servlet.ServletException
  - verifyServletVersion
```
public static void verifyServletVersion()
                                 throws javax.servlet.ServletException
```
    Verify that the used servlet version is not too old.
    
    Throws:
    
    javax.servlet.ServletException - thrown if the servlet version is not compatible