I'm an italian guy, so sorry for my BAD english.
I'm writing a RMI program in Java, and this is the section of the node's code to connect to the RMI server:
try
{//trying to connect to the Server
Remote RemoteObject;
BootstrapServer_Interface serverObject;
Registry r = LocateRegistry.getRegistry(10001);
RemoteObject = r.lookup("BOOTSTRAP-SERVER");//THIS IS LINE 52
serverObject = (BootstrapServer_Interface)RemoteObject;
//I get an ip as Server's answerw
System.out.println("Il nodo "+Thread.currentThread()+" si mette in attesa");
String ipBN = serverObject.start_join_node(fakeip);
if(ipBN.equals("-1"))
{System.out.println("Creazione del nodo "+Thread.currentThread()+" fallito");
return;
}
However, sometimes, the program get this exception:
java.rmi.ConnectIOException: Exception creating connection to: 131.114.43.246; nested exception is:
java.net.SocketException: Socket operation on nonsocket: 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.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at StorageNode.run(StorageNode.java:52)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Socket operation on nonsocket: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(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)
... 9 more
And this the client's code to connect to the RMI server:
try
{//scelgo casualmente un dato da cercare
//genero il mio indirizzo ip
fakeip = String.valueOf((int) (Math.random() * 256)) + "."
+ String.valueOf((int) (Math.random() * 256)) + "."
+ String.valueOf((int) (Math.random() * 256)) + "."
+ String.valueOf((int) (Math.random() * 256));
//creo una Socket UDP con cui contattare il Nodo di Bootstrap
UDPServiceSocket = scanner.UDPSocket();
if(UDPServiceSocket==null)
{System.out.println("Tentativo di creazione socket UDP fallito...");
*return;}
int UDPport = UDPServiceSocket.getLocalPort();
fakeip=fakeip+" UDPport="+UDPport;
//mi connetto al server tramite RMI
Remote RemoteObject;
Registry r = LocateRegistry.getRegistry(10001);
RemoteObject = r.lookup("BOOTSTRAP-SERVER");//THIS IS LINE 48
serverObject = (BootstrapServer_Interface)RemoteObject;
//Ottengo l'ip del Bootstrap Node a cui connettermi
System.out.println("Il client "+Thread.currentThread()+" si mette in attesa.");
ipBN = serverObject.client_search();
}
And the exception in this case (that not necessarily happen together with the node exception that I Posted above)
java.rmi.ConnectIOException: Exception creating connection to: 131.114.43.246; nested exception is:
java.net.SocketException: Socket operation on nonsocket: 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.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at Client.run(Client.java:48)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Socket operation on nonsocket: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(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)
I can't find any reason that cause this exception.
I'm sorry for the less code that I posted before, but it's a little part of a big project, so I cannot past all the code :D
However, if you need it, I can give you some informations about it:
This is a DHT project, and this is the node code while he's trying
to contact the Bootstrap Server (indeed, a RMI Server).
The RMI server methods could be called by many nodes (the code above) and/or
many client at the same time.
The server methods called by nodes
and/or clients are created to manage a Monitor installed on the
Server.
Through this monitor, the nodes and clients modifies an Hash
Table following the model of "writers and readers" (mutual exclusion
ecc.).
Thanks a lot to everyone that will help me with this issue, and sorry again for my bad english!
Related
I have run into an issue developing a HTTP client with the use of BouncyCastle libraries.
Target versions (but the error is also reproducible in Java 1.8.0_91 with the same version of BouncyCastle.)
JRE 1.6.0_45-b06
BouncyCastle jdk15to18 167 (bcprov-jdk15to18-167.jar, bcpkix-jdk15to18-167.jar, bctls-jdk15to18-167.jar)
HTTPClient code:
String strURL = "https://www.<WEBSITE>.com";
// CODE to set default TrustStore, KeyStore to be used
// setup BC as SecurityProvider and SSLSocketFactoryProvider
/*
Security.insertProviderAt(new BouncyCastleProvider(), 1);
Security.insertProviderAt(new BouncyCastleJsseProvider(), 2);
Security.setProperty("ssl.KeyManagerFactory.algorithm", "PKIX");
Security.setProperty("ssl.TrustManagerFactory.algorithm", "PKIX");
Security.setProperty("ssl.SocketFactory.provider", "org.bouncycastle.jsse.provider.SSLSocketFactoryImpl");
System.setProperty("jdk.tls.trustNameService", "true");
*/
URL url = new URL( strURL );
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("GET");
InputStream is = null;
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
System.out.println("OK");
is = conn.getInputStream();
} else if (conn.getResponseCode() == HttpURLConnection.HTTP_INTERNAL_ERROR) {
System.out.println("ERROR");
is = conn.getErrorStream();
} else {
System.out.println( conn.getResponseCode() );
System.out.println( conn.getResponseMessage() );
}
if (is != null) {
System.out.println( readFullyAsString(is, "UTF-8") );
}
conn.disconnect();
Accessing data on a website with TLS 1.2 without client_auth works fine (there are some issues with specific sites that return handshake_failure(40), but luckily not in our case). But when client_auth is required the code fails with the following (a little cryptic) error:
nov. 27, 2020 5:23:10 PM org.bouncycastle.jsse.provider.ProvTlsClient notifyAlertRaised
WARNING: Client raised fatal(2) internal_error(80) alert: Failed to read record
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at org.bouncycastle.tls.RecordStream$Record.fillTo(RecordStream.java:429)
at org.bouncycastle.tls.RecordStream$Record.readHeader(RecordStream.java:468)
at org.bouncycastle.tls.RecordStream.readRecord(RecordStream.java:201)
at org.bouncycastle.tls.TlsProtocol.safeReadRecord(TlsProtocol.java:768)
at org.bouncycastle.tls.TlsProtocol.readApplicationData(TlsProtocol.java:731)
at org.bouncycastle.jsse.provider.ProvSSLSocketDirect$AppDataInput.read(ProvSSLSocketDirect.java:603)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
at HttpsClient.main(HttpsClient.java:109)
nov. 27, 2020 5:23:10 PM org.bouncycastle.jsse.provider.ProvTlsClient notifyAlertRaised
WARNING: Client raised fatal(2) internal_error(80) alert: Failed to read record
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at org.bouncycastle.tls.RecordStream$Record.fillTo(RecordStream.java:429)
at org.bouncycastle.tls.RecordStream$Record.readHeader(RecordStream.java:468)
at org.bouncycastle.tls.RecordStream.readRecord(RecordStream.java:201)
at org.bouncycastle.tls.TlsProtocol.safeReadRecord(TlsProtocol.java:768)
at org.bouncycastle.tls.TlsProtocol.readApplicationData(TlsProtocol.java:731)
at org.bouncycastle.jsse.provider.ProvSSLSocketDirect$AppDataInput.read(ProvSSLSocketDirect.java:603)
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.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 java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
at HttpsClient.main(HttpsClient.java:109)
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at org.bouncycastle.tls.RecordStream$Record.fillTo(RecordStream.java:429)
at org.bouncycastle.tls.RecordStream$Record.readHeader(RecordStream.java:468)
at org.bouncycastle.tls.RecordStream.readRecord(RecordStream.java:201)
at org.bouncycastle.tls.TlsProtocol.safeReadRecord(TlsProtocol.java:768)
at org.bouncycastle.tls.TlsProtocol.readApplicationData(TlsProtocol.java:731)
at org.bouncycastle.jsse.provider.ProvSSLSocketDirect$AppDataInput.read(ProvSSLSocketDirect.java:603)
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.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 java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
at HttpsClient.main(HttpsClient.java:109)
As expected the code runs just fine in Java 1.8 without BC as Security Provider ... but in Java 1.6 BC is needed for TLS 1.2 support.
I looked at the packets with Wireshark, but I don't have enough knowledge to analyze what's happening (failing) with the SSL handshake operation with the server.
What am I missing here? Or it's just a known limitation of BC?
Thanks for any suggestions.
After extensive research and testing (we set up our own dev environment that replicated the endpoint, we were trying to connect to with client cert) we have found a solution (posted below) that works for us in our dev environment, but couldn't be configured on the endpoint. That's why we went to plan B - TLS termination proxy and it worked like a charm in our case, when we didn't have control of the server environment.
Solution for IIS
In our case the web service requiring client auth was running on Microsoft IIS. As stated "Unfortunately our TLS libraries do not support renegotiation (and we do not plan to add it, although there are corresponding TLS 1.3 features that we will)." in this open issue (https://github.com/bcgit/bc-java/issues/593). After reading the IIS documentation and some testing we successfully configured the environment in a way that TLS sessions could be established with BC TLS lib:
Step 1:
Create an IIS site with default settings
Run IISCrypto with the "Best practices" template:
Step 2:
Enable SSLAlwaysNegoClientCert
Save the following text to a file called "Enable_SSL_Renegotiate.js"
var vdirObj=GetObject("IIS://localhost/W3svc/1");
// replace 1 on this line with the number of the web site you wish to configure
WScript.Echo("Value of SSLAlwaysNegoClientCert Before: " + vdirObj.SSLAlwaysNegoClientCert);
vdirObj.Put("SSLAlwaysNegoClientCert", true);
vdirObj.SetInfo();
WScript.Echo("Value of SSLAlwaysNegoClientCert After: " + vdirObj.SSLAlwaysNegoClientCert);
Run the following command from an elevated / administrator command prompt:
cscript.exe enable_ssl_renegotiate.js
I posted the same answer on BouncyCastle Github - #847
I'm running into a java.net.SocketException (Permission denied: connect) when sending a lot of requests to a server. I've tried the -Djava.net.preferIPv4Stack=true option as mentioned in other threads.
This issue only occurs after a lot of connections have already been made. The following code can be used to reproduce the issue:
public class Example {
public static void main(String[] args) {
if(args.length == 1) {
System.out.println(args[0]);
for(int i = 0; i < Integer.MAX_VALUE; i++) {
requestURL(args[0]);
}
}
}
public static void requestURL(String targetUrl) {
URL url = new URL(targetUrl);
HttpURLConnection httpCon = (HttpURLConnection)url.openConnection();
httpCon.setDoInput(true);
BufferedReader rd = new BufferedReader(new InputStreamReader(httpCon.getInputStream()));
//handle response here
rd.close();
httpCon.disconnect();
}
}
The code will successfully send the requests until the Exception occurs. This has been verified in the server's log files.
Please run the sample code only against a server that you are permitted to, as it generates quite a bit of traffic / load on the server.
So the question now is: How to avoid that Exception? Or any workarounds? And what is the actually issue here?
EDIT
added httpCon.disconnect(). (doesn't solve the problem)
EDIT #2 (StackTrace)
java.net.SocketException: Permission denied: 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 sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.protocol.http.HttpURLConnection.connect(Unknown Source)
at Example.requestUrl(Example.java)
at Example.main(Example.java)
When the issue occurs no further requests are sent to the server (no log entries on the server and no SYN packets (sniffed with tcpdump)).
EDIT #3
I've forgotten to run the application with the -Djava.net.preferIPv4Stack=true argument.
It hasn't thrown an exception yet when using both, the aforementioned argument and the httpCon.disconnect() method.
Try to use httpCon.disconnect() to be sure to realease the socket after you finish to read the response.
My problem is that I am trying to make a connection using Java (using Eclipse) to a local database. I don't want to use a remote database because I dont want to setup a server and also because my aplication doesn't need a remote DB.
I dont'have Microsoft Access, so I created the database using LibreOffice. What I know is that LibreOffice is the interface that allows you to create a database, and it can be set up using another database infrastructure like Oracle, MySQL, SQL Server, etc.
I decided to download the driver HSQLDB.jar and I installed it in Eclipse.
The following code shows you my example:
String db="C:\\Users\\Alberto\\Documents\\Peluqueria.odb";
try {
// Cargamos el controlador JDBC
Class.forName("org.hsqldb.jdbcDriver");
} catch (Exception ex){
System.err.println("Se pa producido un error al cargar el controlador JDBC");
return;
}
// Nos conectamos a la base de datos creándola en caso de que no exista
Connection conn = DriverManager.getConnection("jdbc:hsqldb:file:"+db,"sa","");
Statement statement=conn.createStatement();
ResultSet rs=statement.executeQuery("SELECT * FROM TB_Servicios");
while (rs.next()){
System.out.println(rs.getString(1));
}
The Error Exception i get is:
java.sql.SQLSyntaxErrorException: usuario no tiene privilegios suficientes o objeto no encontrado: TB_SERVICIOS
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
at org.hsqldb.jdbc.JDBCStatement.executeQuery(Unknown Source)
at Formularios.VentantaTabla.<init>(VentantaTabla.java:69)
at Formularios.VentantaTabla$1.run(VentantaTabla.java:31)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: org.hsqldb.HsqlException: usuario no tiene privilegios suficientes o
objeto no encontrado: TB_SERVICIOS
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.SchemaManager.getTable(Unknown Source)
at org.hsqldb.ParserDQL.readTableName(Unknown Source)
at org.hsqldb.ParserDQL.readTableOrSubquery(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableReference(Unknown Source)
at org.hsqldb.ParserDQL.XreadFromClause(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableExpression(Unknown Source)
at org.hsqldb.ParserDQL.XreadQuerySpecification(Unknown Source)
at org.hsqldb.ParserDQL.XreadSimpleTable(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryPrimary(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryTerm(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpressionBody(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpression(Unknown Source)
at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source)
at org.hsqldb.ParserCommand.compilePart(Unknown Source)
at org.hsqldb.ParserCommand.compileStatements(Unknown Source)
at org.hsqldb.Session.executeDirectStatement(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source)
... 18 more
Can anybody help me?
You have not completed the database creation part with LibreOffice.
After creating the database in LibreOffice, you need to export a script of the database by running the direct statement SCRIPT 'file_path_name.script'. You then connect from your program to jdbc:hsqldb:file:file_path_name
You cannot connect to an .odb file directly.
Well, I do not understand Spanish but I translated the error message from your log file
usuario no tiene privilegios suficientes o objeto no encontrado
as following:
user does not have sufficient privilege or object not found
Now we can understand exactly what the error messages says. You either do not have permissions to select from table TB_Servicios or such table does not exist.
Since you are using user account sa (that means "system administrator") and your connection established successfully I can assume that you have all permissions you need. Therefore the only one possibility is that the table does not exist in your database.
Have you created table TB_Servicios? If not check how to create it in manual of you DB. Good luck.
Thanks to all of you, but at the end I discovered the solution. The problem is that when I create a database using OpenOffice, the file is with extension ".odb" and this file is compressed.
So if I want to connect to the database I have to decompress the file first and later I have to use the right driver to work out the connection.
I hope it helps you
I have a simple GUI program that does some interactions with a database then once its completed ftps up some files to a server. This has worked perfectly until I added a SwingWorker thread to keep the GUI responsive.
The code I am using works fine if I put it in its standalone project but inside this project (SwingWorker thread) it gives me the following error:
java.net.SocketException: Software caused connection abort: recv failed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at sun.nio.cs.StreamDecoder.read0(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at it.sauronsoftware.ftp4j.NVTASCIIReader.readLine(NVTASCIIReader.java:105)
at it.sauronsoftware.ftp4j.FTPCommunicationChannel.read(FTPCommunicationChannel.java:142)
at it.sauronsoftware.ftp4j.FTPCommunicationChannel.readFTPReply(FTPCommunicationChannel.java:187)
at it.sauronsoftware.ftp4j.FTPClient.openActiveDataTransferChannel(FTPClient.java:3511)
at it.sauronsoftware.ftp4j.FTPClient.openDataTransferChannel(FTPClient.java:3475)
at it.sauronsoftware.ftp4j.FTPClient.upload(FTPClient.java:2641)
at it.sauronsoftware.ftp4j.FTPClient.upload(FTPClient.java:2550)
at it.sauronsoftware.ftp4j.FTPClient.upload(FTPClient.java:2421)
at GUI$MatchFiles.doInBackground(GUI.java:1602)
at GUI$MatchFiles.doInBackground(GUI.java:1)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any ideas?
EDIT:
I assume you mean something like this? Please note this is a very trimmed down version, I have removed a lot of superfluous code. I cant see any of it affecting this.
class Worker extends SwingWorker<Integer, Integer>{
protected Integer doInBackground() throws Exception{
FTPClient client = new FTPClient();
client.connect(url);
client.login(username, password);
client.setPassive(false);
client.changeDirectory(uploaddirectory);
client.upload(new File(fileuploadpath));
client.disconnect(true);
}
protected void done() {
System.out.println("Done");
}
}
As said, I take this code inside the swingworker and put it in its own class and it runs perfect.
It looks like your socket is cut-off by your firewall or anti-virus... Try disabling the firewall and anti-virus and re-run your program...
I need sent some requests to server side and get reponse, sometimes when I call specific method to run the flollowing common code, I get one error in line(addToCookieJar(connection);), any idea how this get happened?
URL url = new URL(providerURL);
HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setRequestMethod("POST");
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setRequestProperty("Content-Type", "application/octet-stream");
// We understand gzip encoding
connection.addRequestProperty("Accept-Encoding", "gzip");
if (cookie != null && cookieHandler != null) {
connection.setRequestProperty("Cookie", cookie);
}
if (cookieHandler == null) {
addFromCookieJar(connection);
}
// Send the request
ObjectOutputStream oos = new ObjectOutputStream(connection.getOutputStream());
oos.writeObject(remote.getName());
oos.writeObject(m.getName()); // method name
oos.writeObject(m.getParameterTypes()); // formal parameters
oos.writeObject(args); // actual parameters
oos.flush();
oos.close();
if (cookieHandler == null) {
cookieJar.put(new URI(providerURL), connection.getHeaderFields());
}
Exception:
java.lang.reflect.UndeclaredThrowableException
at $Proxy0.updateDocument(Unknown Source)
at com.agst.ui.gantt.GanttPanel.doUpdateDocument(GanttPanel.java:1931)
at com.agst.ui.gantt.GanttPanel.save(GanttPanel.java:1419)
at com.agst.ui.gantt.GanttPanel$4.run(GanttPanel.java:1673)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Connection reset
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.agst.rmi.RemoteCallHandler.call(RemoteCallHandler.java:196)
at com.agst.rmi.RemoteCallHandler.invoke(RemoteCallHandler.java:142)
... 5 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.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.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getHeaderFields(Unknown Source)
at com.agst.rmi.RemoteCallHandler.addToCookieJar(RemoteCallHandler.java:529)
at com.agst.rmi.RemoteCallHandler.call(RemoteCallHandler.java:192)
... 6 more
This error indicates that the remote side has closed the connection while your side was still trying to read from it. You should check if
there is a problem on the server (check it's logs) or
you are trying to read more data than the server supplies
What does the addToCookieJar method do? Passing in the connection object might be a problem to this method since you close the OutputStream obtained from the connection. Are you by any chance trying to retrieve and operate on the output stream object in the addToCookieJar method?