I am using netty 3 in applet and when I start it from a browser it gives me following stacktrace in Java Console, if I run from Eclipse Applet Viewer then this issue does not happen:
network: Cache entry not found [url: http://<IP address>/crossdomain.xml, version: null]
network: Connecting http://<IP address>/crossdomain.xml with proxy=DIRECT
network: Connecting http://<IP address>:80/ with proxy=DIRECT
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(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 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.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at com.sun.deploy.net.CrossDomainXML$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.net.CrossDomainXML.privilegedConnect(Unknown Source)
at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
at com.sun.deploy.net.CrossDomainXML.check(Unknown Source)
at sun.plugin2.applet.SecurityManagerHelper.checkConnectHelper(Unknown Source)
at sun.plugin2.applet.AWTAppletSecurityManager.checkConnect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.connect(NioClientSocketPipelineSink.java:150)
at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:113)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:771)
at org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:60)
at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591)
at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:582)
at org.jboss.netty.channel.Channels.connect(Channels.java:541)
at org.jboss.netty.channel.AbstractChannel.connect(AbstractChannel.java:210)
at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:227)
at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:188)
at org.mypackage.Myclass.connect(Client.java:80)
And also this
Exception caught: [id: 0x00498342] EXCEPTION: java.security.AccessControlException: access denied ("java.net.SocketPermission" "<IP address>:18090" "connect,resolve")
Exception caught: [id: 0x00498342] EXCEPTION: java.nio.channels.ClosedChannelException
I test at local PC but specify its IP address to connect.
This is line 80 in my connect method:
future = bootstrap.connect(new InetSocketAddress(host, port));
I have tried to surround it with no success
AccessController.doPrivileged(
new PrivilegedAction<Void>() {
public Void run () {
MyClass.connect(type, userId, secondValue);
return null;
}
}
);
Please, advice how can I solve it?
I was able to solve the problem.
First, I have tried to connect to 127.0.0.1, but for that I had to install Jetty and put my applet and hmtl inside jetty. So it started to work for localhost only.
Socket connection to originating server of an unsigned Java applet
It still didn't work for 10.x.y.z, so I had to sign applet
Is it possible to sign a java applet for free?
and also to create crossdomain.xml in jetty like here:
access denied (java.net.SocketPermission 127.0.0.1:8080 connect,resolve)
Related
I have installed Java 8 and I have the SchemaCrawler folder on E: on my machine. I run SQL Server 2012.
The cmd command used is below
sc.cmd -c graph -host=10.52.136.168 -user=sa -database=MyDBName schemacrawler.Main -infolevel=detailed -schemas=dbo -tabletypes=TABLE -outputformat=pdf -outputfile=database-diagram.pdf %*
I have checked the suggestions given here
but no luck . I still get the below error
schemacrawler.schemacrawler.SchemaCrawlerSQLException: Could not connect to jdbc
:hsqldb:hsql://10.52.136.168:9001/DeliveryIntelligence;readonly=true;hsqldb.lock
_file=false, with properties {user=sa}
at schemacrawler.schemacrawler.BaseDatabaseConnectionOptions.getConnecti
on(BaseDatabaseConnectionOptions.java:122)
at schemacrawler.schemacrawler.BaseDatabaseConnectionOptions.getConnecti
on(BaseDatabaseConnectionOptions.java:70)
at schemacrawler.tools.commandline.SchemaCrawlerCommandLine.execute(Sche
maCrawlerCommandLine.java:176)
at schemacrawler.tools.commandline.SchemaCrawlerMain.main(SchemaCrawlerM
ain.java:78)
at schemacrawler.tools.hsqldb.Main.main(Main.java:43)
Caused by: java.sql.SQLTransientConnectionException: java.net.ConnectException:
Connection refused: connect
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at schemacrawler.schemacrawler.BaseDatabaseConnectionOptions.getConnecti
on(BaseDatabaseConnectionOptions.java:115)
... 4 more
Caused by: org.hsqldb.HsqlException: java.net.ConnectException: Connection refus
ed: connect
at org.hsqldb.ClientConnection.openConnection(Unknown Source)
at org.hsqldb.ClientConnection.initConnection(Unknown Source)
at org.hsqldb.ClientConnection.<init>(Unknown Source)
... 10 more
Caused by: java.net.ConnectException: Connection refused: 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 org.hsqldb.server.HsqlSocketFactory.createSocket(Unknown Source)
... 13 more
You are using SchemaCrawler for HyperSQL. Please download and use SchemaCrawler for SQL Server instead.
Sualeh Fatehi, SchemaCrawler
In my web application, I am using a applet which is signed jar and this applet was working fine before jre 1.6 and 1.7. But after security popup and blocking error of applet we had to purchased a java code signing certificate.
I have signed this applet jar successfully and this applet is running without any problem on HTTP protocol. If I open this applet on HTTPS, it start giving exceptions of SSLHandshakeException. I have tried every possible solution to run this but it failed.
*Java Plug-in 11.25.2.18
Using JRE version 1.8.0_25-b18 Java HotSpot(TM) Client VM
User home directory = C:\Users\home
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter#1d2bd52
security: Expected Main URL: https://www.example.com/test.jar
basic: Plugin2ClassLoader.addURL parent called for https://www.example.com/test.jar
security: Accessing keys and certificate in Mozilla user profile: null
security: JSS is not configured
network: Cache entry not found [url: https://www.example.com/test.jar, version: null]
network: Connecting https://www.example.com/test.jar with proxy=DIRECT
network: Cache entry not found [url: file:/C:/Program%20Files/Java/jre1.8.0_25/lib/ext/sunec.jar, version: null]
network: Cache entry not found [url: file:/C:/Program%20Files/Java/jre1.8.0_25/lib/ext/sunjce_provider.jar, version: null]
network: Connecting http://www.example.com:443/ with proxy=DIRECT
javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.connect(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$800(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.EOFException: SSL peer shut down incorrectly
at sun.security.ssl.InputRecord.read(Unknown Source)
... 42 more
network: Cache entry not found [url: https://www.example.com/test.jar, version: null]
network: Connecting https://www.example.com/test.jar with proxy=DIRECT
network: Connecting http://www.example.com:443/ with proxy=DIRECT
javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.connect(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$800(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.EOFException: SSL peer shut down incorrectly
at sun.security.ssl.InputRecord.read(Unknown Source)
... 40 more
network: Cache entry not found [url: https://www.example.com/Apps.class, version: null]
network: Connecting https://www.example.com/Apps.class with proxy=DIRECT
network: Connecting http://www.example.com:443/ with proxy=DIRECT
network: Cache entry not found [url: https://www.example.com/Apps/class.class, version: null]
network: Connecting https://www.example.com/Apps/class.class with proxy=DIRECT
network: Connecting http://www.example.com:443/ with proxy=DIRECT
java.lang.ClassNotFoundException: Apps.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
basic: load: class Apps.class not found.
java.lang.ClassNotFoundException: Apps.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Ignored exception: java.lang.ClassNotFoundException: Apps.class
basic: Dialog type is not candidate for embedding
security: Reset deny session certificate store
basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter#1d2bd52
security: Reset deny session certificate store*
In applet, I am using simple applet
import java.applet.*;
import java.awt.*;
public class Apps extends Applet{
public void paint(Graphics g){
g.drawString("Welcome in Java Applet.",40,20);
}
}
In our case we have been getting same exception. But for both java1.6 and 1.7
Our environment was as follows:
jbossAS5.1 with deployed web application and one applet in that web
application
apache web server2.2.1 requiring client certificate(self
signed)
on client side mozilla and explorer with imported client certificate, jre
with imported client certificate
In jre control panel we disabled SSL2 client hello format and also disabled SSL3 and TLS1.2 We left enabled only TLS1.0 and TLS1.1 and everything worked fine since that time.
We are having this same issue.
I believe this is a bug in the way Java implemented TLS 1.2 for SSL.
According to their documentation, https://blogs.oracle.com/java-platform-group/entry/java_8_will_use_tls, they claim that by enabling TLS 1.2, it is backwards compatible with older versions.
However, this is not the case. When TLS 1.2 is disabled, we no longer get the "Remote host closed connection during handshake" error.
TLS 1.2 support can be turned off from the Advanced Settings in the Java Control Panel.
Once this is done, the applets will work.
I am trying to update the database table which is hosted on the server through MYSQL JDBC connector using eclipse.
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://49.**.***.115:3306/databasename";
String name = "user";
String password = "passs";
But I not able to connect to the database from my local machine. I checked all the information provided above are correct.
Can please some tell me what to i do next?
Here is the error:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
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 com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1121)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:357)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2479)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2516)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2301)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
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 com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at connecttoDB.getconnection(connecttoDB.java:27)
at updateDB.main(updateDB.java:17)
Caused by: java.net.ConnectException: Connection refused: 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 com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:259)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:307)
... 16 more
Have you verified that you can connect to your database server from the machine you are running this code on? It looks like there is a network problem. A good idea as a first step to diagnosing MySQL connection problems is to always try connecting from the command line to rule out networking or credentials problems
mysql -uuser -p -h49.**.***.115 databasename
where "user" is the username "databasename" is the database and "49.**.***.115" is the ip of the database server.
check the following steps:
1- Ping the IP address to see if you can establish connection, There might be a firewall that is blocking incoming/outgoing communication.
2- Check that your ojdbc6/ojdbc14.jar is loaded in the same directory of your application.
When I test an RMI client and server with the class files it works without any issue on two different machines. Now when I do the same thing with a jar the client fails to connect to the RMIRegistry on the server. Then when I test with the jar on the same machine, the client can connect to the server (even over the network ip and not localhost).
I suspect this has something to do with the RMI registry, but i'm a total novice at RMI, so I have no clue...
I create an RMIRegistry like so:
rmiregistry = LocateRegistry.createRegistry(ServiceConstraints.REGISTRY_PORT);
rmiService = (RmiSubjectService) UnicastRemoteObject.exportObject(this,
ServiceConstraints.REGISTRY_PORT);
rmiregistry.rebind("RmiService", rmiService);
The client connects like this:
remoteService = (RmiSubjectService) Naming.lookup("/" + host + ":"+ port + "/RmiService");
The error I get on the client when running with a jar:
java.rmi.ConnectException: Connection refused to host: 192.168.2.132; 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.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Unknown Source)
at ch.uzh.ifi.group10.client.Client.subscribe(Client.java:148)
at ch.uzh.ifi.group10.client.Client.main(Client.java:242)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:58)
Caused by: java.net.ConnectException: Connection timed out: 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 S
ource)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S
ource)
... 13 more
The problem did turn out to be the network. Specifically it was that I didn't realize that my firewall was blocking the socket, so I could not connect.
I am trying to connect a client (which is behind the company's proxy) to a server (JBoss AS 5.0) which is hosting an application (JavaFX). And I am facing the following error.
exception: Connection refused: connect.
java.net.ConnectException: Connection refused: 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 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.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.net.DownloadEngine.isUpdateAvailable(Unknown Source)
at com.sun.deploy.net.DownloadEngine.isUpdateAvailable(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
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)
Exception: java.net.ConnectException: Connection refused: connect
However, if i am trying to access the application(JavaFX) locally, i have no problem loading the application. Do i need to configure any proxy for the client to access the server?
Any advice on solving this will be greatly appreciated.
Thanks in advance.
Kevin
It is a feature of JBoss check this document
start JBoss by
./run.sh -b 0.0.0.0
or
run.bat -b 0.0.0.0
Seems like Jboss server is not running.You need to start server.