Maven Build Error: Received Fatal Alert Protocol Version - Troubleshooting Guide

If you are encountering the "Received Fatal Alert Protocol Version" error while running a Maven build, it means that your system's Java Runtime Environment (JRE) is using an outdated version of the SSL/TLS protocol that is no longer supported by the server you are trying to communicate with. This could result in build failures, dependency resolution issues, and other unforeseen errors.

Fortunately, there are a few troubleshooting steps you can take to resolve this issue:

Step 1: Update Your Java Environment

The first step is to update your Java environment to the latest version that supports the SSL/TLS protocol version used by the server. This can be done by downloading and installing the latest version of the JRE from the official Java website. Once installed, restart your system and try running the Maven build again.

Step 2: Update Your Maven Configuration

If updating your JRE does not resolve the issue, you may need to update your Maven configuration to force it to use a newer SSL/TLS protocol version. This can be done by adding the following lines to your Maven settings.xml file:


<settings>
<!-- Other settings here -->
<servers>
<server>
<id>your_server_id</id>
<configuration>
<httpConfiguration>
<all>
<!-- Force TLSv1.2 -->
<protocols>
<protocol>TLSv1.2</protocol>
</protocols>
</all>
</httpConfiguration>
</configuration>
</server>
</servers>
</settings>


Replace "your_server_id" with the ID of the server causing the error. Save the file and try running the Maven build again.

Step 3: Contact the Server Administrator

If neither of the above steps resolves the issue, it is possible that the server you are trying to communicate with is using a custom SSL/TLS protocol version that is not supported by your JRE or Maven configuration. In this case, you will need to contact the server administrator to determine if there are any workarounds or updates available.

In summary, if you encounter the "Received Fatal Alert Protocol Version" error while running a Maven build, try updating your JRE, updating your Maven configuration, and contacting the server administrator if necessary. By following these steps, you should be able to resolve the issue and get your build running smoothly once again.