Google Web Toolkit: Dev mode issue after updating to rc1

Hi,

I tried updating my project here: https://github.com/gwidgets/gwty-leaflet-starter-guide from 2.8.0-beta1 to 2.8.0-rc1, but I got the below issue while trying to run dev mode or deploy to a server. It works fine with beta1.

java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider org.eclipse.jetty.apache.jsp.JuliLog not a subtype

[ERROR] at java.util.ServiceLoader.fail(ServiceLoader.java:239)

[ERROR] at java.util.ServiceLoader.access$300(ServiceLoader.java:185)

[ERROR] at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:376)

[ERROR] at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)

[ERROR] at java.util.ServiceLoader$1.next(ServiceLoader.java:480)

[ERROR] at org.apache.juli.logging.LogFactory.<init>(LogFactory.java:78)

[ERROR] at org.apache.juli.logging.LogFactory.<clinit>(LogFactory.java:66)

[ERROR] at org.apache.jasper.servlet.JspServlet.<init>(JspServlet.java:69)

[ERROR] at org.eclipse.jetty.jsp.JettyJspServlet.<init>(JettyJspServlet.java:39)

[ERROR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

[ERROR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

[ERROR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

[ERROR] at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

[ERROR] at java.lang.Class.newInstance(Class.java:442)

[ERROR] at org.eclipse.jetty.server.handler.ContextHandler$Context.createInstance(ContextHandler.java:2372)

[ERROR] at org.eclipse.jetty.servlet.ServletContextHandler$Context.createServlet(ServletContextHandler.java:1166)

[ERROR] at org.eclipse.jetty.servlet.ServletHolder.newInstance(ServletHolder.java:1207)

[ERROR] at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:588)

[ERROR] at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:396)

[ERROR] at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:871)

[ERROR] at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)

[ERROR] at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)

[ERROR] at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)

[ERROR] at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)

[ERROR] at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)

[ERROR] at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:552)

[ERROR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)

[ERROR] at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)

[ERROR] at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)

[ERROR] at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)

[ERROR] at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:140)

[ERROR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)

[ERROR] at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)

[ERROR] at org.eclipse.jetty.server.Server.start(Server.java:387)

[ERROR] at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)

[ERROR] at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)

[ERROR] at org.eclipse.jetty.server.Server.doStart(Server.java:354)

[ERROR] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)

[ERROR] at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:761)

[ERROR] at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:630)

[ERROR] at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:923)

[ERROR] at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)

[ERROR] at com.google.gwt.dev.DevMode.main(DevMode.java:426)

[ERROR] 2016-08-02 21:47:03.384:WARN:oejuc.AbstractLifeCycle:main: FAILED org.eclipse.jetty.server.handler.RequestLogHandler@17192bc: java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider org.eclipse.jetty.apache.jsp.JuliLog not a subtype

[ERROR] java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider org.eclipse.jetty.apache.jsp.JuliLog not a subtype