Validating SOAP messages at endpoints

I am trying to validate incoming SOAP messages annotated with XJsr303Annotations. Validation works when i apply this technique on Spring controllers, however i cannot make it work for endpoints. Here is my setup. There is a number of questions regarding this issue, but i haven't seen any with this approach.

@PayloadRoot(namespace = NAMESPACE_URI, localPart = SERVICE_NAME)
@ResponsePayload
public Response doStuff(@Valid @RequestPayload Request request) {

// doing something

Request is annotated with not null for mandatory parameters, and so on.

Exception handler for invalid requests:

@ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseBody
    public  Response handleInvalidRequest(MethodArgumentNotValidException e) {
        // return Respone

I have added following dependencies in pom file:

<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>1.1.0.Final</version>

</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>5.1.1.Final</version>
</dependency>

plugin setup:

<plugin>
                <groupId>org.jvnet.jaxb2.maven2</groupId>
                <artifactId>maven-jaxb2-plugin</artifactId>
                <executions>
                    <execution>
                        <id>generate-wsdl</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <schemaDirectory>src/main/resources</schemaDirectory>
                            <schemaIncludes>
                                <include>*.wsdl</include>
                                <!-- <include>*.xsd</include> -->
                            </schemaIncludes>
<!--                            <forceRegenerate>true</forceRegenerate> -->
                            <!-- <removeOldOutput>true</removeOldOutput> -->
                            <!-- <cleanPackageDirectories>true</cleanPackageDirectories> -->
                            <strict>true</strict>
                            <extension>true</extension>
                            <args>
                                <arg>-XJsr303Annotations</arg>
                                <arg>-Xannotate</arg>
                            </args>
                            <plugins>
                                <plugin>
                                    <groupId>org.jvnet.jaxb2_commons</groupId>
                                    <artifactId>jaxb2-basics-annotate</artifactId>
                                    <version>0.6.3</version>
                                </plugin>
                                <plugin>
                                    <groupId>com.github.krasa</groupId>
                                    <artifactId>krasa-jaxb-tools</artifactId>
                                    <version>1.1</version>
                                </plugin>
                            </plugins>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

Shouldn't this also work for the SOAP messages, like it does for REST requests on the Controllers? When i send request with all mandatory parameters missing it isn't picked up by this exception handler.