Actually no, here it is, in the logs:

[ERROR] org.jboss.errai.bus.client.api.base.NoSubscribersToDeliverTo: no subscribers to deliver to for subject: org.ocpsoft.tutorial.regex.client.shared.RegexParser:RPC
[ERROR]     at org.jboss.errai.bus.client.framework.ClientMessageBusImpl.send(ClientMessageBusImpl.java:485)
[ERROR]     at org.jboss.errai.bus.client.api.base.CommandMessage.sendNowWith(CommandMessage.java:328)
[ERROR]     at org.jboss.errai.bus.client.api.builder.DefaultRemoteCallBuilder$1.sendNowWith(DefaultRemoteCallBuilder.java:134)
[ERROR]     at org.jboss.errai.bus.client.framework.RpcProxyLoaderImpl$1org_ocpsoft_tutorial_regex_client_shared_RegexParserImpl.parse(RpcProxyLoaderImpl.java:31)
[ERROR]     at org.ocpsoft.tutorial.regex.client.local.App$1.run(App.java:91)
[ERROR]     at com.google.gwt.user.client.Timer.fire(Timer.java:149)
[ERROR]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR]     at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR]     at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
[ERROR]     at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
[ERROR]     at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
[ERROR]     at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:337)
[ERROR]     at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:218)
[ERROR]     at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
[ERROR]     at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
[ERROR]     at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
[ERROR]     at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
[ERROR]     at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
[ERROR]     at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:213)
[ERROR]     at sun.reflect.GeneratedMethodAccessor570.invoke(Unknown Source)
[ERROR]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR]     at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR]     at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
[ERROR]     at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
[ERROR]     at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
[ERROR]     at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:292)
[ERROR]     at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:546)
[ERROR]     at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363)
[ERROR]         at java.lang.Thread.run(Thread.java:680)