Ich verwende einen eingebetteten Jetty über das Eclipse Jetty Maven Plugin (9.1.0.M0).

Ich habe die folgende Plugin - Konfiguration in meinempom.xml:

                <plugin>
                    <groupId>org.eclipse.jetty</groupId>
                    <artifactId>jetty-maven-plugin</artifactId>
                    <version>${version.jetty}</version>

                    <configuration>
                        <scanIntervalSeconds>10</scanIntervalSeconds>
                        <daemon>true</daemon>

                        <webApp>
                            <contextPath>/</contextPath>
                            <descriptor>${basedir}/src/test/webapp/WEB-INF/web.xml</descriptor>
                        </webApp>

                        <httpConnector>
                            <port>48080</port>
                        </httpConnector>

                        <stopPort>19081</stopPort>
                        <stopKey>53AS9DS1FD8E3WEFEW9GR1ER8G2ER0WE31</stopKey>
                    </configuration>

                    <executions>
                        <execution>
                            <id>jetty-start</id>

                            <phase>test-compile</phase>
                            <goals>
                                <goal>run</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>jetty-stop</id>

                            <phase>test</phase>
                            <goals>
                                <goal>stop</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>

Ich erhalte die folgende Ausnahme, wenn Jetty heruntergefahren wird:

2013-09-27 04:51:08.309:WARN:oejuc.AbstractLifeCycle:Thread-68: FAILED WebSocketClient@873794597{FAILED,8<=8<=200,i=8,q=0}: java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/QueuedThreadPool$1
java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/QueuedThreadPool$1
    at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:121)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:129)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:148)
    at org.eclipse.jetty.websocket.client.WebSocketClient.doStop(WebSocketClient.java:263)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.thread.ShutdownThread.run(ShutdownThread.java:133)
Caused by: 
java.lang.ClassNotFoundException: org.eclipse.jetty.util.thread.QueuedThreadPool$1
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:121)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:129)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:148)
    at org.eclipse.jetty.websocket.client.WebSocketClient.doStop(WebSocketClient.java:263)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.thread.ShutdownThread.run(ShutdownThread.java:133)
2013-09-27 04:51:08.310:WARN:oejuc.AbstractLifeCycle:Thread-68: FAILED org.eclipse.jetty.websocket.client.WebSocketClient@34150c25: java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/QueuedThreadPool$1
java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/QueuedThreadPool$1
    at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:121)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:129)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:148)
    at org.eclipse.jetty.websocket.client.WebSocketClient.doStop(WebSocketClient.java:263)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.thread.ShutdownThread.run(ShutdownThread.java:133)
Caused by: 
java.lang.ClassNotFoundException: org.eclipse.jetty.util.thread.QueuedThreadPool$1
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:121)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:129)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:148)
    at org.eclipse.jetty.websocket.client.WebSocketClient.doStop(WebSocketClient.java:263)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.thread.ShutdownThread.run(ShutdownThread.java:133)
Exception in thread "Thread-68" java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/QueuedThreadPool$1
    at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:121)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:129)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:148)
    at org.eclipse.jetty.websocket.client.WebSocketClient.doStop(WebSocketClient.java:263)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:90)
    at org.eclipse.jetty.util.thread.ShutdownThread.run(ShutdownThread.java:133)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.util.thread.QueuedThreadPool$1
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
    ... 7 more

Ich habe versucht hinzuzufügenjetty-util als Abhängigkeit des Plugins (und auch - des Projekts). Das hat nicht geholfen und macht mich verrückt. Während der Build tatsächlich vergeht, kann ich diese Fehler wirklich nicht sehen, wenn Jetty am Ende meines Maven-Builds heruntergefahren wird.

Bitte beraten! Vielen Dank im Voraus!