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java.lang.NoClassDefFoundError: org/mortbay/jetty/servlet/ServletHandler	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)	at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:413)	at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:421)	at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)	at org.jboss.weld.environment.gwtdev.GwtDevHostedModeContainer.getWeldServletHandlerClass(GwtDevHostedModeContainer.java:46)	at org.jboss.weld.environment.gwtdev.GwtDevHostedModeContainer.initialize(GwtDevHostedModeContainer.java:57)	at org.jboss.weld.environment.servlet.Listener.contextInitialized(Listener.java:150)	at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:782)	at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:424)	at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:774)	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:249)	at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1242)	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:717)	at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494)	at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:518)	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)	at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)	at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:162)	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)	at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)	at org.eclipse.jetty.server.Server.doStart(Server.java:282)	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)	at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:717)	at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:522)	at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1104)	at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:844)	at com.google.gwt.dev.DevMode.main(DevMode.java:322)