When clicking the "play" button the page died with the following error:

Error Details:

Message: Method onLinkClicked of interface org.apache.wicket.markup.html.link.ILinkListener targeted at [ [Component id = run]] on component [ [Component id = run]] threw an exception

Root cause:

java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.egit.github.core.client.GsonUtils
at org.eclipse.egit.github.core.client.GitHubClient.<init>(GitHubClient.java:141)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository.newGitHubClient(GitHubRepository.java:135)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace.CGLIB$newGitHubClient$19(<generated>)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace$$FastClassByCGLIB$$23ab006f.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace.newGitHubClient(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.AbstractPullRequestsProvider.getPullRequestService(AbstractPullRequestsProvider.java:61)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.CGLIB$getPullRequestService$2(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac$$FastClassByCGLIB$$20260ee7.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.getPullRequestService(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider.listPullRequests(OpenedPullRequestsProvider.java:22)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.CGLIB$listPullRequests$0(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac$$FastClassByCGLIB$$20260ee7.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.listPullRequests(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.AbstractPullRequestsProvider.getPullRequests(AbstractPullRequestsProvider.java:27)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.CGLIB$getPullRequests$3(<generated>)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac$$FastClassByCGLIB$$20260ee7.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
at com.pmease.quickbuild.plugin.scm.github.pullrequest.OpenedPullRequestsProvider$$EnhancerByCGLIB$$a636fac.getPullRequests(<generated>)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository.getShortBranches(GitHubRepository.java:181)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace.CGLIB$getShortBranches$4(<generated>)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace$$FastClassByCGLIB$$23ab006f.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$d0dcbace.getShortBranches(<generated>)
at com.pmease.quickbuild.DefaultBuildEngine.requestBuild(DefaultBuildEngine.java:1722)
at com.pmease.quickbuild.DefaultBuildEngine.requestBuild(DefaultBuildEngine.java:1630)
at com.pmease.quickbuild.web.page.configuration.ConfigurationPage$4.onClick(ConfigurationPage.java:200)
at org.apache.wicket.markup.html.link.Link.onLinkClicked(Link.java:187)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:272)
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:220)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:179)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:165)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:719)
at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:210)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
at com.pmease.quickbuild.web.MainServlet.service(MainServlet.java:133)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.eclipse.equinox.http.helper.FilterServletAdaptor$FilterChainImpl.doFilter(FilterServletAdaptor.java:56)
at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)
at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:243)
at org.eclipse.equinox.http.helper.FilterServletAdaptor.service(FilterServletAdaptor.java:37)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:669)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)
at com.pmease.quickbuild.Quickbuild$DisableTraceFilter.doFilter(Quickbuild.java:1057)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:229)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:365)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:745)


Complete stack:

org.apache.wicket.WicketRuntimeException: Method onLinkClicked of interface org.apache.wicket.markup.html.link.ILinkListener targeted at [ [Component id = run]] on component [ [Component id = run]] threw an exception
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:282)
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:220)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:179)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:165)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:719)
at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:210)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:272)
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:220)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:179)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:165)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:719)
at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:210)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)