Maven proxy settings not working

Question

I have setup maven proxy settings in conf/settings.xml as

<proxy>
  <active>true</active>
  <protocol>http</protocol>
  <host>proxy.my-company.com</host>
  <port>8080</port>
</proxy>

but when I run maven build, I am getting following error. Can someone please help

[WARNING] The POM for org.apache.maven.wagon:wagon-ssh:jar:2.2 is missing, no dependency information available

detailed log

mvn -X

Apache Maven 3.0.4 (r1232337; 2012-01-17 03:44:56-0500)
Maven home: C:\tools\apache-maven-3.0.4
Java version: 1.6.0_12, vendor: Sun Microsystems Inc.
Java home: C:\tools\Java\jdk1.6.0_12\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows xp", version: "5.1", arch: "x86", family: "windows"

[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from C:\tools\apache-maven-3.0.4\conf\settings.xml
[DEBUG] Reading user settings from C:\Documents and Settings\desibaba\.m2\settings.xml
[DEBUG] Using local repository at C:\Documents and Settings\desibaba\.m2\repository
[DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for C:\Documents and Settings\desibaba\.m2\repository
[INFO] Scanning for projects...
[DEBUG] Using connector WagonRepositoryConnector with priority 0 for http://repo.maven.apache.org/maven2 via proxy.my-company.com:8080 as null
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh/2.2/wagon-ssh-2.2.pom
[DEBUG] Writing resolution tracking file C:\Documents and Settings\desibaba\.m2\repository\org\apache\maven\wagon\wagon-ssh\2.2\wagon-ssh-2.2.pom.lastUpdated
[WARNING] The POM for org.apache.maven.wagon:wagon-ssh:jar:2.2 is missing, no dependency information available
[DEBUG] org.apache.maven.wagon:wagon-ssh:jar:2.2:
[DEBUG]    org.codehaus.plexus:plexus-utils:jar:1.1:runtime
[DEBUG] Using connector WagonRepositoryConnector with priority 0 for http://repo.maven.apache.org/maven2 via proxy.my-company.com:8080 as null
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh/2.2/wagon-ssh-2.2.jar
Downloading: http://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
[DEBUG] Writing resolution tracking file C:\Documents and Settings\desibaba\.m2\repository\org\apache\maven\wagon\wagon-ssh\2.2\wagon-ssh-2.2.jar.lastUpd
ated
[DEBUG] Writing resolution tracking file C:\Documents and Settings\desibaba\.m2\repository\org\codehaus\plexus\plexus-utils\1.1\plexus-utils-1.1.jar.last
Updated
[DEBUG] Looking up lifecyle mappings for packaging pom from ClassRealm[plexus.core, parent: null]
[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin org.apache.maven.wagon:wagon-ssh:2.2 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven.wagon:wagon-ssh:jar:2.2, org.codehaus.plexus:plexus-utils:jar:1.1: Could not find artifact org.apache.maven.wagon:wagon-ssh:jar:2.2 in central (http://repo.maven.apache.org/maven2) @

        at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:363)
        at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:636)
        at org.apache.maven.DefaultMaven.getProjectsForMavenReactor(DefaultMaven.java:585)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:234)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
[ERROR]
[ERROR]   The project xxx (C:\t1\9630727\pom.xml) has 1 error
[ERROR]     Unresolveable build extension: Plugin org.apache.maven.wagon:wagon-ssh:2.2 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven.wagon:wagon-ssh:jar:2.2, org.codehaus.plexus:plexus-utils:jar:1.1: Could not find artifact org.apache.maven.wagon:wagon-ssh:jar:2.2 in central (http://repo.maven.apache.org/maven2) -> [Help 2]
org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.wagon:wagon-ssh:2.2 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven.wagon:wagon-ssh:jar:2.2, org.codehaus.plexus:plexus-utils:jar:1.1: Could not find artifactorg.apache.maven.wagon:wagon-ssh:jar:2.2 in central (http://repo.maven.apache.org/maven2)

Answer 1

I tried introducing the proxy settings to the settings.xml file in several different locations, but it seems like none of them were picked up during runtime.

However, I discovered that there is an environment variable MAVEN_OPTS where I was finally able to set the proxy info and have it reflected at runtime:

MAVEN_OPTS
-Dhttp.proxyHost=proxy.myproxy.com -Dhttp.proxyPort=80 -Dhttps.proxyHost=proxy.myproxy.com -Dhttps.proxyPort=80