Neo4j,Java,Servlet errors with connection

I created a dynamic web project in eclipse. I've a website where i can insert some value, the value are taken by the application FirsteServlet.java and sent to neo4j through the class Connessione.java.

In this class, there is a variable:

Driver driver = GraphDatabase.driver( "bolt://localhost", AuthTokens.basic("neo4j", "abc"), Config.build()
            .withEncryptionLevel( Config.EncryptionLevel.REQUIRED )
            .withTrustStrategy( Config.TrustStrategy.trustOnFirstUse( new File( "/path/to/neo4j_known_hosts" ) ) )
            .toConfig() );

When i run the all application on a server (tomcat 9.0), i insert the values through the form and the class tooks the values. There are no problems. Now, the class Connessione is called and i get this error:

GRAVE: Servlet.service() for servlet [Test2] in context with path  [/progetto2] threw exception [Servlet execution threw an exception] with root cause
java.lang.ClassNotFoundException: org.neo4j.driver.v1.AuthTokens
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)
at progetto2.Connessione.connettiti(Connessione.java:18)
at progetto2.FirsteServlet.doGet(FirsteServlet.java:106)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:745)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

If I try to use only the class Connessione then i don't take any errors and it connects without problem. So how can I solve?