Maven Proxy Settings

Maven Proxy Settings | Generated by AI

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Based on the output of your checkproxy command, your HTTP and HTTPS proxies are both set to http://127.0.0.1:7890. Below is the updated Maven settings.xml configuration snippet to configure Maven to use these proxy settings.

Updated `settings.xml` Proxy Configuration Snippet

Add or update the <proxies> section in your Maven settings.xml file (located at ~/.m2/settings.xml or /usr/share/maven/conf/settings.xml) with the following:

<settings>
  <proxies>
    <proxy>
      <id>http-proxy</id>
      <active>true</active>
      <protocol>http</protocol>
      <host>127.0.0.1</host>
      <port>7890</port>
      <nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>
    </proxy>
    <proxy>
      <id>https-proxy</id>
      <active>true</active>
      <protocol>https</protocol>
      <host>127.0.0.1</host>
      <port>7890</port>
      <nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>
    </proxy>
  </proxies>
</settings>

Explanation of the Snippet

<id>: Unique identifiers (http-proxy and https-proxy) for each proxy configuration.
<active>true</active>: Enables the proxy.
<protocol>: Set to http for the HTTP proxy and https for the HTTPS proxy, matching your checkproxy output.
<host>127.0.0.1</host>: The proxy server’s IP address, as shown in your proxy settings.
<port>7890</port>: The port number for both proxies, as specified.
<nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>: Excludes localhost and 127.0.0.1 from being proxied, which is standard to avoid issues with local services.
No <username> or <password>: Since your proxy output doesn’t indicate authentication, these fields are omitted. If authentication is required, add them with your credentials.

Steps to Apply

Open settings.xml:
- If ~/.m2/settings.xml exists, edit it (e.g., nano ~/.m2/settings.xml).
- If it doesn’t exist, create it or edit the global file at /usr/share/maven/conf/settings.xml (requires sudo).
Insert or Update the <proxies> Section:
- If <proxies> already exists, replace or merge the <proxy> entries with the snippet above.
- If <settings> is empty or minimal, you can use the entire snippet as the file’s content.
Save and Close the file.

Verify the Configuration

Run a Maven command that requires internet access to confirm the proxy is used:

cd ~/Projects/blog-server
mvn -X clean checkstyle:check

In the debug output (-X), look for lines indicating Maven is using the proxy (e.g., connections to 127.0.0.1:7890). If the command downloads dependencies or completes without network errors, the proxy is working.

Troubleshooting

Proxy Not Working:
- Ensure the proxy server at 127.0.0.1:7890 is running (e.g., test with curl -x http://127.0.0.1:7890 https://repo.maven.apache.org).
- Check for typos in the settings.xml file.
Settings File Ignored:
- Confirm Maven is reading ~/.m2/settings.xml by checking the debug output for the file path.
- If using the global file, ensure you edited /usr/share/maven/conf/settings.xml correctly.
Authentication Required:
- If your proxy requires a username and password, add:
```
<username>yourusername</username>
<password>yourpassword</password>
```
  to each <proxy> block.

Note on Previous Context

Your checkstyle:check issue in the blog-server project (related to checks.xml and SuppressWithNearbyTextFilter) should be resolved separately by updating the pom.xml as previously suggested (using maven-checkstyle-plugin:3.3.1 with Checkstyle 10.17.0 and <configLocation>${project.basedir}/checks.xml</configLocation>). The proxy settings above will ensure Maven can download any required artifacts for that fix.

Let me know if you encounter issues or need help with the updated pom.xml or further proxy debugging!

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