SDM not running any more!

When I try tor get SDM on my GWT project running, I always get this output on console:

Runing CodeServer with parameters: [-noprecompile, -port, 9876, -sourceLevel, 1.7, -bindAddress, 0.0.0.0, -launcherDir, /home/marian/workspace_oha_mgwt/oha/target/oha-1.0-SNAPSHOT, -logLevel, INFO, at.mlux.oha]
Super Dev Mode starting up
   workDir: /tmp/gwt-codeserver-4503114881501533286.tmp
   [WARN] Deactivated PrecompressLinker
2016-04-20 12:42:24 INFO  log:186 - Logging initialized @3880ms
   Loading Java files in at.mlux.oha.
Exception in thread "main" java.lang.NoSuchMethodError: org.eclipse.jetty.server.AbstractConnector: method <init>()V not found
    at org.eclipse.jetty.server.nio.AbstractNIOConnector.<init>(AbstractNIOConnector.java:30)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.<init>(SelectChannelConnector.java:82)
    at com.google.gwt.dev.shell.jetty.JettyLauncher.getConnector(JettyLauncher.java:803)
    at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:729)
    at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:632)
    at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1054)
    at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:836)
    at com.google.gwt.dev.DevMode.main(DevMode.java:413)
   Module setup completed in 4594 ms
java.lang.NoSuchMethodError: org.eclipse.jetty.server.AbstractConnector: method <init>()V not found
    at org.eclipse.jetty.server.nio.AbstractNIOConnector.<init>(AbstractNIOConnector.java:30)
    at org.eclipse.jetty.server.nio.SelectChannelConnector.<init>(SelectChannelConnector.java:82)
    at com.google.gwt.dev.codeserver.WebServer.start(WebServer.java:119)
    at com.google.gwt.dev.codeserver.CodeServer.start(CodeServer.java:128)
    at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:91)
    at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:50)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.google.gwt.dev.shell.SuperDevListener$1.run(SuperDevListener.java:84)

No difference which GWT version I am using. 2.7.0 or 2.8.0-beta1.
GWT compile works.

I think the jetty version is wrong but how to fix this?
I can add my pom if desired.

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