JWT Auth0给我一个错误：ClassNotFoundException，但我有导入

Question

我想创建一个实现令牌进行身份验证的Web服务。

我收到此错误：

Advertencia：StandardWrapperValve [jersey-serlvet]：servlet jersey-serlvet的Servlet.service（）抛出异常java.lang.ClassNotFoundException：com.auth0.jwt.JWTSigner

这是我的代码：

     import com.auth0.jwt.JWTSigner;
     import com.auth0.jwt.JWTVerifier;
     import com.auth0.jwt.JWTVerifyException;
     import java.util.HashMap;
     import java.util.Map;

     //....

       ...//
public String crearToken(String username) {
    String token = null;
    final long iat = System.currentTimeMillis() / 1000l; // issued at claim 
    final long exp = iat + 60L; // expires claim. In this case the token expires in 60 seconds
    final JWTSigner signer = new JWTSigner(this.key);
    final HashMap<String, Object> claims = new HashMap<String, Object>();
    claims.put("iss", username);
    claims.put("exp", exp);
    claims.put("iat", iat);
    claims.put("aud",aud);


    token = signer.sign(claims);
    return token;
}

public void validarToken(String token)throws Exception{       

    try {
           JWTVerifier jwtVerifier1 = new JWTVerifier(key);          
    jwtVerifier1.verify(token);}      

     catch(Exception e){             

     }
}

我的终点：

           @POST
@Produces("application/json")
@Consumes("application/json")
public Response authenticateUser(Credentials credentials) {

    String username = credentials.getUsername();
    String password = credentials.getPassword();

    try {

        Authenticate auth= new Authenticate();
        //Authenticate the user using the credentials provided
        auth.authenticateUser(username, password);

        Token tok= new Token();
        // Issue a token for the user
        String token = tok.crearToken(username);

        // Return the token on the response
        return Response.ok(token).build();

    } catch (Exception e) {
        return Response.status(Response.Status.UNAUTHORIZED).build();
    }      
}

有人知道为什么它会给我这个错误或我做错了吗？