[ 
https://issues.apache.org/jira/browse/HTTPCLIENT-1362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13671733#comment-13671733
 ] 

Sergey B. edited comment on HTTPCLIENT-1362 at 5/31/13 6:44 PM:
----------------------------------------------------------------

Below is an example of occurrence of the bug:

org.apache.http.conn.HttpHostConnectException: Connection to https://host:port 
refused
        at 
org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:158)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149) 
~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:573)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
 ~[httpclient-4.1.2.jar:4.1.2]
        at ru.bm.ws.unisoft.FnsService.processRequest(FnsService.java:152) 
[FnsService.class:na]
        at ru.bm.ws.unisoft.FnsService.doPost(FnsService.java:84) 
[FnsService.class:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) 
[servlet-api.jar:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
[servlet-api.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:207)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405) 
[catalina.jar:7.0.21]
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:269) 
[tomcat-coyote.jar:7.0.21]
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
 [tomcat-coyote.jar:7.0.21]
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
 [tomcat-coyote.jar:7.0.21]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
[na:1.6.0_24]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
[na:1.6.0_24]
        at java.lang.Thread.run(Thread.java:679) [na:1.6.0_24]
Caused by: java.net.ConnectException: Connection timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327) 
~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
 ~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180) 
~[na:1.6.0_24]
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384) 
~[na:1.6.0_24]
        at java.net.Socket.connect(Socket.java:546) ~[na:1.6.0_24]
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:584) 
~[na:1.6.0_24]
        at 
org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:375)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
 ~[httpclient-4.1.2.jar:4.1.2]
        ... 26 common frames omitted

                
      was (Author: sergey-b):
    Below is an example of occurrence of the bug:

org.apache.http.conn.HttpHostConnectException: Connection to 
https://ir.nalog.ru:8443 refused
        at 
org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:158)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149) 
~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:573)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
 ~[httpclient-4.1.2.jar:4.1.2]
        at ru.bm.ws.unisoft.FnsService.processRequest(FnsService.java:152) 
[FnsService.class:na]
        at ru.bm.ws.unisoft.FnsService.doPost(FnsService.java:84) 
[FnsService.class:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) 
[servlet-api.jar:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
[servlet-api.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:207)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) 
[catalina.jar:7.0.21]
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
 [catalina.jar:7.0.21]
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405) 
[catalina.jar:7.0.21]
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:269) 
[tomcat-coyote.jar:7.0.21]
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
 [tomcat-coyote.jar:7.0.21]
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
 [tomcat-coyote.jar:7.0.21]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
[na:1.6.0_24]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
[na:1.6.0_24]
        at java.lang.Thread.run(Thread.java:679) [na:1.6.0_24]
Caused by: java.net.ConnectException: Connection timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327) 
~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
 ~[na:1.6.0_24]
        at 
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180) 
~[na:1.6.0_24]
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384) 
~[na:1.6.0_24]
        at java.net.Socket.connect(Socket.java:546) ~[na:1.6.0_24]
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:584) 
~[na:1.6.0_24]
        at 
org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:375)
 ~[httpclient-4.1.2.jar:4.1.2]
        at 
org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
 ~[httpclient-4.1.2.jar:4.1.2]
        ... 26 common frames omitted

                  
> Confusing message in HttpHostConnectException
> ---------------------------------------------
>
>                 Key: HTTPCLIENT-1362
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1362
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>            Reporter: Sergey B.
>            Priority: Trivial
>              Labels: exception
>
> TCP connection can fail with two different kind of errors: 'Connection timed' 
> out and 'Connection refused'. When a connection error occurs HttpClient 
> catches SocketException and replaces it with HttpHostConnectException. In 
> addition to exception class it replaces exception message, changing original 
> text with 'Connection to ... refused'. This message is confusing because it 
> looks very much like SocketException 'Connection refused', but in fact it 
> hides original 'Connection timed out'.
> Consider using different messages in HttpHostConnectException depending on 
> parent exception.

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