使用Maven Jetty启动Web项目时失败，出现这样的异常：
[INFO] Web defaults = org/eclipse/jetty/webapp/webdefault.xml [INFO] Web overrides = none 2014-08-10 17:39:45.840:INFO:oejs.Server:main: jetty-9.2.2.v20140723 2014-08-10 17:40:54.961:WARN:oejw.WebAppContext:main: Failed startup of context o.e.j.m.p.JettyWebAppContext
java.lang.Exception: Timeout scanning annotations
at org.eclipse.jetty.annotations.AnnotationConfiguration.scanForAnnotations(AnnotationConfiguration.java:570)
at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:440)
at org.eclipse.jetty.webapp.WebAppContext.configure(WebAppContext.java:471)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1329)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:497)
at org.eclipse.jetty.maven.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:365)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
解决：
在启动命令后追加参数即可：
maven jetty:run -Dorg.eclipse.jetty.annotations.maxWait=120
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