Cannot resolve symbol: import org.eclipse.jetty.server.Server;

Question

In my Vaadin Jetty Maven project :

 <dependencies>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-core</artifactId>
        </dependency>

        <!-- Added to provide logging output as Flow uses -->
        <!-- the unbound SLF4J no-operation (NOP) logger implementation -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.2</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-webapp</artifactId>
            <version>8.1.7.v20120910</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-server</artifactId>
            <version>8.1.7.v20120910</version>
        </dependency>
    </dependencies>

In my Main.java:

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.HandlerList;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.util.resource.Resource;

public class Main {
    public static void main(String[] args) throws Exception {
        Server server = new Server();

        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8080);
        server.addConnector(connector);

        ProtectionDomain domain = Main.class.getProtectionDomain();
        URL location = domain.getCodeSource().getLocation();
        WebAppContext webapp = new WebAppContext();
        webapp.setContextPath("/");
        webapp.setWar(location.toExternalForm());
        server.setHandler(webapp);

        server.start();
        server.join();

    }
}

But I get compile error in

import org.eclipse.jetty.server.Server;

Cannot resolve symbol

Have you tried removing " provided" from your jetty-webapp dependency? — Julius Hörger, Mar 14 '19 at 14:24

score 2 · Answer 1 · answered Mar 14 '19 at 14:28

org.eclipse.jetty.server.Server is included in

<dependency>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-server</artifactId>
            <version>8.1.7.v20120910</version>
</dependency>

I created a small Vaadin8 project with

mvn -B archetype:generate \
        -DarchetypeGroupId=com.vaadin \
        -DarchetypeArtifactId=vaadin-archetype-application \
        -DarchetypeVersion=8.7.1 \
        -DgroupId=org.test \
        -DartifactId=vaadin-app \
        -Dversion=1.0-SNAPSHOT

and added the dependencies you mentioned in your question. Then I added your Main class.

I can do a mvn clean install without problems and I can compile it in IntelliJ.

Please make sure that maven downloaded all dependencies correctly.

Cannot resolve symbol: import org.eclipse.jetty.server.Server;

1 Answers1