JSONException in RPC part 2
patrykxes Oct 10, 2011 3:11 PMHello,
When I receive a message on the client I have a Exception:
[ERROR] com.google.gwt.json.client.JSONException: Error parsing JSON: SyntaxError: JSON.parse: bad control character in string literal [ERROR] at com.google.gwt.json.client.JSONParser.throwJSONException(JSONParser.java:91) [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:167) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207) [ERROR] at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132) [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.json.client.JSONParser.evaluate(JSONParser.java) [ERROR] at com.google.gwt.json.client.JSONParser.parse(JSONParser.java:218) [ERROR] at com.google.gwt.json.client.JSONParser.parseStrict(JSONParser.java:87) [ERROR] at org.jboss.errai.bus.client.json.JSONUtilCli.decodePayload(JSONUtilCli.java:48) [ERROR] at org.jboss.errai.bus.client.framework.ClientMessageBusImpl.procIncomingPayload(ClientMessageBusImpl.java:1158) [ERROR] at org.jboss.errai.bus.client.framework.ClientMessageBusImpl.access$7(ClientMessageBusImpl.java:1156) [ERROR] at org.jboss.errai.bus.client.framework.ClientMessageBusImpl$LongPollRequestCallback.onResponseReceived(ClientMessageBusImpl.java:993) [ERROR] at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287) [ERROR] at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395) [ERROR] at sun.reflect.GeneratedMethodAccessor26.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:167) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207) [ERROR] at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132) [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:214) [ERROR] at sun.reflect.GeneratedMethodAccessor24.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:167) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531) [ERROR] at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352) [ERROR] at java.lang.Thread.run(Thread.java:662)
this is my code on Server side:
public String getPing(String result) { String line = null; try { Process p = Runtime.getRuntime().exec("ping -n 1 " + result); BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream())); while ((line = input.readLine()) != null) { //System.out.println(line); result = line + "\n"; } input.close(); } catch (Exception err) { err.printStackTrace(); return "ErrorPwList"; } return result; }
and Client:
sendButton3.addClickHandler(new ClickHandler() { public void onClick(ClickEvent clickEvent) { MessageBuilder.createCall(new RemoteCallback<String>() { public void callback(String response) { // Run popup dialog box sendButton3.setEnabled(false); dialogBox.setText("RPC - Success"); dialogBox.center(); //window.centerInPage(); closeButton.setFocus(true); textToServerLabel.setText(response); } }, RPCTestService.class).getPing(nameField3.getText()); } });
Is this a bug?
Thanks for your help.
Greetings,
Patric