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Java EE 7 CDI - Injection not working, sending NullPointerException

I have a problem with my injection, this is the first time I tried it. I work with Wildfly and Java EE 7. I have NullPointerExceptionwhen trying to access the instance Authenticatorin LoginController.

I use maven, my beans.xml is under src/main/webapp/META-INF, but I'v tried to put it in src/main/webapp/WEB-INF/classeswithout success.

Here is my code:

Class for injection:

@Stateless
public class Authenticator {

    @Inject
    HashGenerator hashGenerator;

    @Inject
    UserPersistance userPersistance;

    public boolean authenticate(final String username, final String password) {
        User user = userPersistance.getUser(username);
        String salt = user.getSalt();
        String hash = hashGenerator.hash(password, salt);
        return user.getPassword().equals(hash);
    }
}

The controller that throws a NullPointerException:

@Stateless
public class LoginController {

    @Inject
    Authenticator authenticator;

    public void login(String username, String password) {
        if (authenticator.authenticate(username, password)) {
            UI ui = UI.getCurrent();
            ui.getSession().setAttribute(SessionAttribute.USER.getAttributeName(), username);
            ui.getNavigator().navigateTo(MainView.getName());
        }
    }
}

And my beans.xml (under src/main/webapp/META-INF)

<beans
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
    bean-discovery-mode="all">
</beans>

What have I done wrong?

UPDATE

Sorry, I previously messed up the beans.xml folder names.

, , maven WAR, beans.xml META-INF, WEB-INF WEB-INF/classes. , , . ( ) quickstart JBoss AS 7, beans.xml WEB-INF. .

, , , Maven. :

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>be.normegil</groupId>
    <artifactId>datamanager</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>datamanager</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.target>1.7</maven.compiler.target>
        <maven.compiler.source>1.7</maven.compiler.source>        
        <failOnMissingWebXml>false</failOnMissingWebXml>
        <maven.build.timestamp.format>yyyy-MM-dd'T'HH:mm:ss</maven.build.timestamp.format>
        <vaadin.version>7.1.9</vaadin.version>
        <vaadin.plugin.version>${vaadin.version}</vaadin.plugin.version>
    </properties>
    <pluginRepositories>
        <pluginRepository>
            <id>vaadin-snapshots</id>
            <url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
            <releases>
                <enabled>false</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>
    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.enterprise</groupId>
            <artifactId>cdi-api</artifactId>
            <version>1.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.inject</groupId>
            <artifactId>javax.inject</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.2</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.ejb</groupId>
            <artifactId>javax.ejb-api</artifactId>
            <version>3.2</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>javax.transaction-api</artifactId>
            <version>1.2</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
            <version>1.0.2</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-server</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client-compiled</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-themes</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-cdi</artifactId>
            <version>1.0.0.alpha1</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.9.5</version>
        </dependency>
        <dependency>
            <groupId>org.apache.derby</groupId>
            <artifactId>derby</artifactId>
            <version>10.7.1.1</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.wildfly.plugins</groupId>
                <artifactId>wildfly-maven-plugin</artifactId>
                <version>1.0.0.Beta1</version>
            </plugin>
        </plugins>
    </build>

</project>
+4
1

, , :

Maven

, javax:javaee-api , Java EE 7. javax.enterprise:cdi-api, javax.inject:javax.inject javax.annotation:javax.annotation-api

beans.xml

. beans.xml src/main/webapp/WEB-INF ( Wildfly? )

Vaadin CDIUI

. Vaadin CDIUI . Vaadin new. , ( , new , )

, , @CDIUI Vaadin. , (UIProvider) :

@Theme("chameleon-green")
@Title("Data Manager")
@CDIUI("")
public class DataManagerUI extends UI {
    @WebServlet(value = "/*",
            asyncSupported = true,
            initParams = {@WebInitParam(
                    name = "session-timeout",
                    value = "60"
            ),@WebInitParam(
                    name = "UIProvider",
                    value = "com.vaadin.cdi.CDIUIProvider"
            )}
    )
    @VaadinServletConfiguration(productionMode = false,
            ui = DataManagerUI.class,
            closeIdleSessions = true
    )
    public static class Servlet extends VaadinServlet {
    }

    [...]
}

new Vaadin, UI UIProvider Injection.

!

+3

Source: https://habr.com/ru/post/1523778/

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