It was the solution, thank you so much! 2016-10-28 9:47 GMT+02:00 Simone Bordet <[email protected]>:
> Hi, > > On Fri, Oct 28, 2016 at 9:42 AM, Elias Antolinos Garcia > <[email protected]> wrote: > > Hi community! > > > > I am trying to load an example where I change messages between Ros and > Java. > > I have add all the libraries that I have found, but I always get the > > following exception: > > > > Exception in thread "main" java.lang.NullPointerException > > at > > org.eclipse.jetty.websocket.common.extensions.AbstractExtension.getName( > AbstractExtension.java:90) > > at > > org.eclipse.jetty.websocket.api.extensions.ExtensionFactory.<init>( > ExtensionFactory.java:37) > > at > > org.eclipse.jetty.websocket.common.extensions. > WebSocketExtensionFactory.<init>(WebSocketExtensionFactory.java:40) > > at > > org.eclipse.jetty.websocket.client.WebSocketClient.<init>( > WebSocketClient.java:85) > > at > > org.eclipse.jetty.websocket.client.WebSocketClient.<init>( > WebSocketClient.java:78) > > at ros.RosBridge.connect(RosBridge.java:113) > > at tests.RosTest.main(RosTest.java:27) > > > > > > These are the libraries: > > > > com.fasterxml.jackson.core.jar > > jetty-websocket-8.0.0.v20110901.jar > > com.fasterxml.jackson.databind.jar > > websocket-api-9.0.0.rc0.jar > > websocket-client-9.0.3.v20130506.jar > > websocket-client-9.0.3.v20130506-hybrid.jar > > websocket-client-9.0.2.v20130417.jar > > websocket-client-9.0.2.v20130417-hybrid.jar > > websocket-client-9.1.0.m0-hybrid.jar > > jetty-util-9.0.0.rc0.jar > > jetty-io-9.0.0.m1.jar > > websocket-common-9.0.0.rc1.jar > > java_rosbridge.jar > > java_rosbridge_all.jar > > jetty-all.jar > > jetty-all-9.2.6.v20141205.jar > > Please note you have a weird number of different versions of the Jetty > libraries. > Pick one version only, we recommend you stay on the latest, > 9.3.13.v20161014. > Don't use the jetty*-all.jar versions. > > Once you have only one version for all the Jetty libraries, try again. > > -- > Simone Bordet > ---- > http://cometd.org > http://webtide.com > Developer advice, training, services and support > from the Jetty & CometD experts. > _______________________________________________ > jetty-users mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://dev.eclipse.org/mailman/listinfo/jetty-users > -- Un Saludo Elías Antolinos García
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