Exception in thread "main" java.net.BindException: Address already in use

Question

I try to install a java HTTP API on my linux server. I try to execute this command from command pompt to run the service:

java -Dfile.encoding=UTF8 -cp .:boilerpipe-1.2.0.jar:lib/nekohtml-1.9.13.jar:lib/xerces-2.9.1.jar:lib/langdetect.jar:lib/jsonic-1.2.8.jar ExampleProgram

Then I have this error:

Exception in thread "main" java.net.BindException: Address already in use at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:463) at sun.nio.ch.Net.bind(Net.java:455) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at sun.net.httpserver.ServerImpl.(ServerImpl.java:100) at sun.net.httpserver.HttpServerImpl.(HttpServerImpl.java:50) at sun.net.httpserver.DefaultHttpServerProvider.createHttpServer(DefaultHttpServerProvider.java:35) at com.sun.net.httpserver.HttpServer.create(HttpServer.java:129) at ExampleProgram.main(ExampleProgram.java:37)

Here is ExampleProgram.java:

import java.io.InputStream;
import java.io.FileReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.IOException;

import org.xml.sax.InputSource;

import de.l3s.boilerpipe.document.TextDocument;
import de.l3s.boilerpipe.extractors.ArticleExtractor;
import de.l3s.boilerpipe.sax.BoilerpipeSAXInput;


// Language detect librarys
import com.cybozu.labs.langdetect.*;

import net.arnx.jsonic.JSON;
import net.arnx.jsonic.JSONException;


import java.io.*;
import java.net.*;


import java.util.concurrent.Executors;
import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

class ExampleProgram {

public static void main(String[] args) throws Exception {

EveryDetector evr = new EveryDetector();
InetSocketAddress addr = new InetSocketAddress("localhost",8080);
HttpServer server = HttpServer.create(addr, 0);

MyHandler hndl = new MyHandler();
hndl.setDetector(evr);

MyHandlerExtractContent hnd2 = new MyHandlerExtractContent();
hnd2.setDetector(evr);

MyHandlerDetectLanguage hnd3 = new MyHandlerDetectLanguage();
hnd3.setDetector(evr);

server.createContext("/",hndl);
server.createContext("/extractcontent",hnd2);
server.createContext("/detectlanguage",hnd3);
server.setExecutor(Executors.newCachedThreadPool());
server.start();
System.out.println("Server is listening on port 8080" );


 }
}

Source: https://github.com/remdex/boilerpipe-and-language-detect-api-server

What is wrong? How can I fix it?

Arachnid Hivemind · Accepted Answer · 2016-02-29 23:40:53Z

3

What looks like is happening is that something is already running on port 8080 if you change the port number your problem should go away.

answered Feb 29, 2016 at 23:40

Arachnid Hivemind

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5 Comments

Stewie Griffin Over a year ago

I thought what you said but I do not have much knowledge about this. How can I change it to a different port?

Arachnid Hivemind Over a year ago

in this line InetSocketAddress addr = new InetSocketAddress("localhost",8080); this is where you set the port to 8080 change that number to 9090. Also something worth noting when you access it youll have to type in localhost:9090 in your address bar

Stewie Griffin Over a year ago

I can do this but should I execute other transaction? To create port for 9090?

Arachnid Hivemind Over a year ago

What do you mean by execute other transaction? What line would that be?

Arachnid Hivemind Over a year ago

No problem I'm glad i could help

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