I am doing a project in java called visual speech recognition . while iam trying to run the below code in eclipse indigo..
package main.java.edu.lipreading;
import com.googlecode.javacpp.BytePointer;
import com.googlecode.javacv.cpp.opencv_core;
import main.java.edu.lipreading.vision.AbstractFeatureExtractor;
import main.java.edu.lipreading.vision.NoMoreStickersFeatureExtractor;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.websocket.WebSocket;
import org.eclipse.jetty.websocket.WebSocketHandler;
import javax.servlet.http.HttpServletRequest;
import java.io.ByteArrayOutputStream;
import java.util.List;
import java.util.logging.Logger;
import static com.googlecode.javacv.cpp.opencv_core.CV_8UC1;
import static com.googlecode.javacv.cpp.opencv_core.cvMat;
import static com.googlecode.javacv.cpp.opencv_highgui.cvDecodeImage;
/**
* Created with IntelliJ IDEA.
* User: Sagi
* Date: 25/04/13
* Time: 21:47
*/
public class WebFeatureExtractor extends Server {
private final static Logger LOG = Logger.getLogger(WebFeatureExtractor.class.getSimpleName());
private final static AbstractFeatureExtractor fe = new NoMoreStickersFeatureExtractor();
public WebFeatureExtractor(int port) {
SelectChannelConnector connector = new SelectChannelConnector();
connector.setPort(port);
addConnector(connector);
WebSocketHandler wsHandler = new WebSocketHandler() {
public WebSocket doWebSocketConnect(HttpServletRequest request, String protocol) {
return new FeatureExtractorWebSocket();
}
};
setHandler(wsHandler);
}
/**
* Simple innerclass that is used to handle websocket connections.
*
* #author jos
*/
private static class FeatureExtractorWebSocket implements WebSocket, WebSocket.OnBinaryMessage, WebSocket.OnTextMessage {
private Connection connection;
public FeatureExtractorWebSocket() {
super();
}
/**
* On open we set the connection locally, and enable
* binary support
*/
#Override
public void onOpen(Connection connection) {
LOG.info("got connection open");
this.connection = connection;
this.connection.setMaxBinaryMessageSize(1024 * 512);
}
/**
* Cleanup if needed. Not used for this example
*/
#Override
public void onClose(int code, String message) {
LOG.info("got connection closed");
}
/**
* When we receive a binary message we assume it is an image. We then run this
* image through our face detection algorithm and send back the response.
*/
#Override
public void onMessage(byte[] data, int offset, int length) {
//LOG.info("got data message");
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
bOut.write(data, offset, length);
try {
String result = convert(bOut.toByteArray());
this.connection.sendMessage(result);
} catch (Exception e) {
LOG.severe("Error in facedetection, ignoring message:" + e.getMessage());
}
}
#Override
public void onMessage(String data) {
LOG.info("got string message");
}
}
public static String convert(byte[] imageData) throws Exception {
opencv_core.IplImage originalImage = cvDecodeImage(cvMat(1, imageData.length, CV_8UC1, new BytePointer(imageData)));
List<Integer> points = fe.getPoints(originalImage);
if(points == null)
return "null";
String ans = "";
for (Integer point : points) {
ans += point + ",";
}
return ans;
}
/**
* Start the server on port 999
*/
public static void main(String[] args) throws Exception {
WebFeatureExtractor server = new WebFeatureExtractor(9999);
server.start();
server.join();
}
}
i am getting this error..
Exception in thread "main" java.lang.VerifyError: class org.eclipse.jetty.server.nio.AbstractNIOConnector overrides final method newBuffer.(I)Lorg/eclipse/jetty/io/Buffer;
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at main.java.edu.lipreading.WebFeatureExtractor.<init>(WebFeatureExtractor.java:33)
at main.java.edu.lipreading.WebFeatureExtractor.main(WebFeatureExtractor.java:118)
i got dis code from https://github.com/sagioto/LipReading/blob/master/lipreading-core/src/main/java/edu/lipreading/WebFeatureExtractor.java..
can anyone help me plz..
java.lang.VerifyError can happen if you're running against a different version of a library than the code was compiled against.
Looking in the github repository, I see the files are dated 25 April 2013. Apparently, Jetty has received an update during these last 10 months. Find the version of Jetty that was current on that date and try again.
Related
Grrr, I feel that this should be so obvious yet I can't find the solution.
For testing purposes I have created a simple Client and Server for an RMI application. I can successfully run the client and server over a local network. I can also successfully run the application when connected through a Windows 10 Built-In VPN connection. However, when connected via an OpenVPN connection I receive a Connection refused to host exception when calling a method (String response = lookup.helloTo(txt); in the Client code) on the remote object returned from the successful call to lookup = (RMIInterface)Naming.lookup("//192.168.10.14/MyServer");.
All my Google searches state that the java.rmi.server.hostname property must be set which I have done in this case. I am thinking that the issue may be between the VPN client IP address (10.8.0.14) and the server IP address (192.168.10.14). I can ping the server IP address and telnet to port 1099 on the server successfully.
Here is my code. I was hoping if someone could see something that I am missing or doing wrong or if I am on the right track regarding the VPN Client IP <=> Server IP.
Remote Interface:
package devel;
import java.rmi.Remote;
import java.rmi.RemoteException;
public interface RMIInterface extends Remote {
public String helloTo(String name) throws RemoteException;
}
Server:
package devel;
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
public class ServerOperation extends UnicastRemoteObject implements RMIInterface {
private static final long serialVersionUID = 1L;
protected ServerOperation() throws RemoteException {
super();
}
#Override
public String helloTo(String name) throws RemoteException {
System.err.println(name + " is trying to contact!");
return "Server says hello to " + name;
}
public static void main(String[] args) {
try {
java.lang.System.setProperty("java.rmi.server.hostname", "192.168.10.14");
java.rmi.registry.LocateRegistry.createRegistry(1099);
Naming.rebind("//192.168.10.14/MyServer", new ServerOperation());
System.err.println("Server is ready");
} catch(Exception exc) {
System.err.println("Server exception: " + exc.toString());
exc.printStackTrace();
}
}
}
Client:
package devel;
import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import javax.swing.JOptionPane;
public class ClientOperation {
private static RMIInterface lookup;
public static void main(String[] args) throws MalformedURLException, RemoteException, NotBoundException {
lookup = (RMIInterface)Naming.lookup("//192.168.10.14/MyServer");
String txt = JOptionPane.showInputDialog("What is your name?");
String response = lookup.helloTo(txt);
JOptionPane.showMessageDialog(null, response);
}
}
Exception received:
Exception in thread "main" java.rmi.ConnectException: Connection refused to host: 192.168.10.14; nested exception is:
java.net.ConnectException: Connection timed out: connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
at com.sun.proxy.$Proxy0.helloTo(Unknown Source)
at devel.ClientOperation.main(ClientOperation.java:17)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown Source)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown Source)
... 8 more
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/concurrent/FutureCallback
at com.mashape.unirest.request.BaseRequest.asJson(BaseRequest.java:68)
at iezon.main.WebSocket.getAllApps(WebSocket.java:21)
at iezon.main.Init.(Init.java:16)
at iezon.main.Init.main(Init.java:27)
Caused by: java.lang.ClassNotFoundException: org.apache.http.concurrent.FutureCallback
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 4 more
My current code is:
package iezon.main;
import org.json.JSONArray;
import org.json.JSONObject;
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;
import iezon.interfaces.options.InterfaceController;
public class WebSocket {
public WebSocket() {
}
public void getAllApps() {
try {
HttpResponse<JsonNode> request = Unirest.get("https://iezontechnologywebapp.000webhostapp.com/api/store/get").asJson();
JSONArray response = request.getBody().getArray();
for (int i = 0; i < response.length(); i++) {
JSONObject object = response.getJSONObject(i);
// TODO: Load apps properly this is just a test dialog to show they loaded
InterfaceController.showDialog(new Object[] {
object.getString("name"),
object.getString("description")
}, "Apps loaded");
}
} catch (UnirestException e) {
e.printStackTrace();
}
}
}
I have tried adding httpclient-4.3.3.jar to the buildpath as well as commons-io-2.5.jar but neither has fixed the issue, I have checked documentation but doesn't say I need any other libraries to run Unirest
I was watching this tutorial on making games using java and I was on the part where we import music to our game. However, when I try to load the sounds using a method created in this class:
package main;
import java.util.HashMap;
import java.util.Map;
import org.newdawn.slick.Music;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.Sound;
public class AudioPlayer {
public static Map<String, Sound> soundMap = new HashMap<String, Sound>();
public static Map<String, Music> musicMap = new HashMap<String, Music>();
public static void load(){
try {
soundMap.put("click_sound", new Sound("res/clickSound.ogg"));
musicMap.put("music", new Music("res/background_Music.ogg"));
} catch (SlickException e) {
e.printStackTrace();
}
}
public static Music getMusic(String key){
return musicMap.get(key);
}
public static Sound getSound(String key){
return soundMap.get(key);
}
}
i get an error that says this:
Exception in thread "main" java.lang.NoClassDefFoundError: com/jcraft/jorbis/Info
at org.newdawn.slick.openal.OggInputStream.<init>(OggInputStream.java:35)
at org.newdawn.slick.openal.OggDecoder.getData(OggDecoder.java:311)
at org.newdawn.slick.openal.SoundStore.getOgg(SoundStore.java:835)
at org.newdawn.slick.openal.SoundStore.getOgg(SoundStore.java:793)
at org.newdawn.slick.Sound.<init>(Sound.java:87)
at main.AudioPlayer.load(AudioPlayer.java:18)
at main.Game.<init>(Game.java:45)
at main.Game.main(Game.java:160)
Caused by: java.lang.ClassNotFoundException: com.jcraft.jorbis.Info
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 8 more
AL lib: (EE) alc_cleanup: 1 device not closed
have I wrote something wrong? i imported the correct external jars and did everything that said in the tutorial. However, I keep getting this error?
The code below has a few issues. First, it's giving me a SocketTimeoutException. This was working just fine a few days ago, but now it's throwing this error. I'm not sure how to trace the problem to the source. I tried increasing the timeout (which I really don't think will work in the end), but it always times out after 18 seconds. What's more strange is that the URL works when I try getting a JSON file from something else (such as http://mysafeinfo.com/api/data?list=englishmonarchs&format=json). I've waited about a day and the issue is still there. Is there anything I could do to resolve this issue?
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Timer;
import java.util.TimerTask;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
public class SocketTimeoutError {
public static void main(String args[]) {
URL myURL;
TimerTask task = null;
try {
myURL = new URL(
"https://maps.googleapis.com/maps/api/geocode/json?address=Chicago+Illinois");
URLConnection conn = myURL.openConnection();
conn.connect();
conn.setConnectTimeout(4 * 600000);
conn.setReadTimeout(4 * 600000);
//
Timer timer = new Timer();
task = new TimerTask() {
int time = 0;
public void run() {
System.out.println(time++);
}
};
//
System.out.println("Connecting..." + "Timeout="
+ conn.getConnectTimeout());
timer.scheduleAtFixedRate(task, 0, 1000);
BufferedReader in = new BufferedReader(new InputStreamReader(
conn.getInputStream()));
task.cancel();
JSONParser parser = new JSONParser();
JSONObject jsonObject = (JSONObject) parser.parse(in);
String status = (String) jsonObject.get("status");
System.out.println(status);
} catch (Exception e) {
e.printStackTrace();
System.exit(-1);
}
}
}
Here's my console output:
Connecting...Timeout=2400000
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at sun.security.ssl.InputRecord.readFully(Unknown Source)
at sun.security.ssl.InputRecord.read(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
at sun.security.ssl.AppInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at SocketTimeoutError.main(SocketTimeoutError.java:38)
---Edit---
I've been doing this on my work machine. I just tried this code on my home computer and it works just fine. Also, the company I work for has a Google for Work license. I don't understand how it could be a network issue, though, between the company and the google servers, because I'm able to view the json in my Chrome browser.
I've figured out what the issue was. I had to connect through a proxy (which our browsers automatically do and explains why I got a response when I used a web browser). I just had to modify my code in the following way:
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("proxy.url.com", 80));
URLConnection myURLConnection = myURL.openConnection(proxy);
This is my code
import processing.core.PApplet;
import de.fhpotsdam.unfolding.UnfoldingMap;
import de.fhpotsdam.unfolding.utils.MapUtils;
public class SimpleMapApp extends PApplet {
UnfoldingMap map;
public void setup() {
size(750, 600,P2D);
map = new UnfoldingMap(this);
MapUtils.createDefaultEventDispatcher(this, map);
}
public void draw() {
map.draw();
}
}
When i run it throws exception:
Unfolding Map v0.9.6
Using OpenGLMapDisplay with processing.opengl.PGraphics2D
java.io.IOException: Server returned HTTP response code: 500 for URL:
http://a.tiles.wmflabs.org/bw-mapnik/2/2/2.png at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown
Source) at java.net.URL.openStream(Unknown Source) at
processing.core.PApplet.createInputRaw(PApplet.java:7233) at
processing.core.PApplet.createInput(PApplet.java:7201) at
processing.core.PApplet.loadBytes(PApplet.java:7428) at
processing.core.PApplet.loadImage(PApplet.java:5867) at
de.fhpotsdam.unfolding.tiles.TileLoader.getTileFromUrl(Unknown Source)
at de.fhpotsdam.unfolding.tiles.TileLoader.run(Unknown Source) at
java.lang.Thread.run(Unknown Source)
Try changing your map provider.
map = new UnfoldingMap(this, new Google.GoogleMapProvider());