How to Resolve Maven SSL Errors Behind a Proxy?

Troubles Utilizing Maven and SSL While Behind Proxy

When attempting to execute the basic Maven command as described in the "Maven in Five Minutes" guide at https://maven.apache.org/guides/getting-started/maven-in-five-minutes.html, individuals may encounter errors related to SSL certificates and difficulties in downloading from the Central Maven repository at https://repo.maven.apache.org/maven2. This error typically manifests as "SunCertPathBuilderException: unable to find valid certification path to requested target."

While behind a corporate firewall, affected individuals often have appropriately configured proxy settings for both HTTP and HTTPS access through their settings.xml file. Under normal circumstances, it is unlikely that all Maven users would need to import the SSL certificate of the Maven repository, indicating that the issue may be related to the proxy.

Potential Resolution:

Alternative Solution:

1. Utilize a third-party TLS/SSL inspection tool to intercept all HTTPS traffic destined to the affected URLs.

2. Add the SSL certificates to the organization's internal certificate store managed by the proxy.

Note: It is important to emphasize that this auxiliary solution does not eliminate the requirement to address the underlying proxy configuration.

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