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From "Dzung Tran (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AXIS2-4823) Error "Address is invalid on local machine..." occurs when http.proxyHost is "" (blank) instead of null.
Date Mon, 20 Sep 2010 15:36:33 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-4823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dzung Tran updated AXIS2-4823:
------------------------------

    Description: 
We generate a proxy client using wsdl2Java. We do not have any proxy server enabled in our
system. However, after the system is in use for some time (a few hours), something sets the
system variable http.proxyHost to "" (blank) instead of null. That is, the call to System.getProperty(HTTP_PROXY_HOST)
returns "" instead of null. We have yet to figure out why this happens. 

That causes the following if block in org.apache.axis2.transport.http.AbstractHTTPSender to
evaluate to true and execute, 

        // proxy configuration

        if (ProxyConfiguration.isProxyEnabled(msgCtx,targetURL)) {
            log.debug("ProxyConfiguration");
            ProxyConfiguration proxyConfiguration = new ProxyConfiguration();
            proxyConfiguration.configure(msgCtx,client,config);
        }

Because of this, the program thinks a proxy connection with proxy host = "" is enabled and
it tries to use it. See below (org.apache.commons.httpclient.HttpConnection)

    public void open() throws IOException {
        LOG.trace("enter HttpConnection.open()");

        final String host = (proxyHostName == null) ? hostName : proxyHostName;
        final int port = (proxyHostName == null) ? portNumber : proxyPortNumber;
        assertNotOpen();

And because the host is "', we get the error "Address is invalid on local machine, or port
is not valid on remote machine". 
This prevents all transactions from being sent to the server, and requires a restart of our
services. 

Question:
What is setting the http.proxyHost to blank? 
Should blank http.proxyHost be treated the same way as null? (If blanks were treated like
nulls in this case, we wouldn't have this issue.)




  was:
We generate a proxy client using wsdl2Java. We do not have any proxy server enabled in our
system. However, after the system is in use for some time (a few hours), something sets the
system variable http.proxyHost to "" (blank) instead of null. That is, the call to System.getProperty(HTTP_PROXY_HOST)
returns "" instead of null. We have yet to figure out why this happens. 

That causes the following if block in org.apache.axis2.transport.http.AbstractHTTPSender to
evaluate to true and execute, 

        // proxy configuration

        if (ProxyConfiguration.isProxyEnabled(msgCtx,targetURL)) {
            log.debug("ProxyConfiguration");
            ProxyConfiguration proxyConfiguration = new ProxyConfiguration();
            proxyConfiguration.configure(msgCtx,client,config);
        }

Because of this, the program thinks a proxy connection with proxy host = "" is enabled and
it tries to use it. See below (org.apache.commons.httpclient.HttpConnection)

    public void open() throws IOException {
        LOG.trace("enter HttpConnection.open()");

        final String host = (proxyHostName == null) ? hostName : proxyHostName;
        final int port = (proxyHostName == null) ? portNumber : proxyPortNumber;
        assertNotOpen();

And because the host is "', you get the error "Address is invalid on local machine, or port
is not valid on remote machine". 
This prevents all transactions from being sent to the server, and requires a restart of our
services. 

Question:
Do you know what is setting the http.proxyHost to blank? 
Should blank http.proxyHost be treated the same way as null? (If blanks were treated like
nulls in this case, we wouldn't have this issue.)





> Error "Address is invalid on local machine..." occurs when http.proxyHost is "" (blank)
instead of null.
> --------------------------------------------------------------------------------------------------------
>
>                 Key: AXIS2-4823
>                 URL: https://issues.apache.org/jira/browse/AXIS2-4823
>             Project: Axis2
>          Issue Type: Bug
>          Components: transports
>    Affects Versions: 1.5
>         Environment: Windows Sever 2003
>            Reporter: Dzung Tran
>            Priority: Critical
>
> We generate a proxy client using wsdl2Java. We do not have any proxy server enabled in
our system. However, after the system is in use for some time (a few hours), something sets
the system variable http.proxyHost to "" (blank) instead of null. That is, the call to System.getProperty(HTTP_PROXY_HOST)
returns "" instead of null. We have yet to figure out why this happens. 
> That causes the following if block in org.apache.axis2.transport.http.AbstractHTTPSender
to evaluate to true and execute, 
>         // proxy configuration
>         if (ProxyConfiguration.isProxyEnabled(msgCtx,targetURL)) {
>             log.debug("ProxyConfiguration");
>             ProxyConfiguration proxyConfiguration = new ProxyConfiguration();
>             proxyConfiguration.configure(msgCtx,client,config);
>         }
> Because of this, the program thinks a proxy connection with proxy host = "" is enabled
and it tries to use it. See below (org.apache.commons.httpclient.HttpConnection)
>     public void open() throws IOException {
>         LOG.trace("enter HttpConnection.open()");
>         final String host = (proxyHostName == null) ? hostName : proxyHostName;
>         final int port = (proxyHostName == null) ? portNumber : proxyPortNumber;
>         assertNotOpen();
> And because the host is "', we get the error "Address is invalid on local machine, or
port is not valid on remote machine". 
> This prevents all transactions from being sent to the server, and requires a restart
of our services. 
> Question:
> What is setting the http.proxyHost to blank? 
> Should blank http.proxyHost be treated the same way as null? (If blanks were treated
like nulls in this case, we wouldn't have this issue.)

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