com.vaadin.flow.server.startup.ServletVerifier API 21.0.9 | Vaadin

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com.vaadin.flow.server.startup.

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

All Implemented Interfaces:

ClassLoaderAwareServletContainerInitializer, VaadinContextStartupInitializer, VaadinServletContextStartupInitializer, javax.servlet.ServletContainerInitializer
```
public class ServletVerifier
extends Object
implements VaadinServletContextStartupInitializer
```
Verify the servlet version on container initialization.
In cases of non compatible servlet version application deployment will fail.
For internal use only. May be renamed or removed in a future release.

Since:

1.0

Constructor Summary

Constructors
Constructor and Description

ServletVerifier()

Method Summary

All Methods
Modifier and Type	Method and Description
`void`	`initialize(Set<Class<?>> classSet, VaadinContext context)` Applies this initializer to the given context
`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

Methods inherited from interface com.vaadin.flow.server.startup.VaadinServletContextStartupInitializer
process

Methods inherited from interface com.vaadin.flow.server.startup.ClassLoaderAwareServletContainerInitializer
onStartup, requiresLookup

- Constructor Detail
  - ServletVerifier
```
public ServletVerifier()
```
- Method Detail
  - initialize
```
public void initialize(Set<Class<?>> classSet,
                       VaadinContext context)
                throws VaadinInitializerException
```
    Description copied from interface: VaadinContextStartupInitializer
    
    Applies this initializer to the given context
    
    Specified by:
    
    initialize in interface VaadinContextStartupInitializer
    
    Parameters:
    
    classSet - the Set of application classes which this initializer needs to do its job
    
    context - the VaadinContext to use with this initializer
    
    Throws:
    
    VaadinInitializerException - if an error has occurred
  - 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