Hi,
Context:
According to
http://stackoverflow.com/questions/9811828/common-httpclient-and-proxy it seems
that some versions of HttpClient need a separate configuration / code to set an
http proxy, while others use the JVM http.proxyHost and http.proxyPort as their
default. Is my understanding correct?
We configure Tomcat6 with JAVA_OPTS="-Dhttp.proxySet=true -Dhttp.proxyHost=<IP
of proxy> -Dhttp.proxyPort=<Port of proxy (8080)> -Dhttp.nonProxyHosts=<hosts
that should not be accessed through the proxy> $JAVA_OPTS"
Problem:
We use a third party software which, in an attempt of an HTTP POST with basic
auth (which should use an http proxy server configured above) gives a stack
trace ending in:
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:249)
at
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
at
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
at
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
at
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
at
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:324)
at
org.topbraidlive.server.workspace.DeployUtil.isFormAuthetication(DeployUtil.java:68)
at
org.topbraidlive.server.workspace.DeployUtil.authenticate(DeployUtil.java:46)
at
org.topbraidlive.sparqlmotion.modules.PostRequestModule.perhapsAuthenticate(PostRequestModule.java:165)
... 55 more
My assumption so far is that the HttpClient in use needs a separate http proxy
configuration (and does not take it from the JVM parameters intended for this
purpose).
An explanation of this is that it uses a standalone / embedded http stack, and
only reuses the core tcp stack from the JVM. Is that the case?
I am in the process of finding out the exact name and version of the apache
artifact which contains the HttpClient class seen in the stack trace.
Please advise,
Nicu Marasoiu
Enterprise Java Architect
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