Symptoms

When deploying with Myst the 'download-deploy-artifacts' Myst action returns a maven-default-http-blocker error.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.5.1:copy (copy-artifacts) on project myst-Artefacts: Unable to resolve artifact.: Could not transfer artifact mystsoftware:StockOSB:sbar:1.0-101 from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [artifactory-repo (http://10.0.0.1:8083/artifactory/libs-release, default, releases+snapshots), artifactory-snapshot-repo (http://10.0.0.1:8083/artifactory/libs-snapshot, default, releases+snapshots)]

Cause

Version 3.8.1 of Maven blocks unsecure http by default. https://maven.apache.org/docs/3.8.1/release-notes.html#cve-2021-26291

If a WebLogic patch such as the one below was applied then Maven has been updated. 34298772 -WLS PATCH SET UPDATE 12.2.1.3.220620

Solution

The same Maven link above also contains a solution https://maven.apache.org/docs/3.8.1/release-notes.html#how-to-fix-when-i-get-a-http-repository-blocked

1. Update the endpoint that is being blocked to HTTPS
2. Define a mirror by updating your ~/.m2/settings.xml or Myst Continuous Delivery Profile.
   1. If you don't use the Continuous Delivery Profile then update ~/.m2/settings.xml on each of the AdminServer hosts
   2. If you use the Continuous Delivery Profile then update there.
      

*NOTE:

• Take caution when changing the Myst Continuous Delivery Profile. You will need to know what the original contents were as Myst hides it contains passwords.*
• Backup the Myst database
• You can also find the settings.xml when running a Myst action and SSH'ing to the AdminServer under the default Myst workspace location (`/tmp/mystWorkspace/RANDOM_ID/resources/maven/settings.xml)

Workaround

If neither of the above solutions work for you then there's a way to override the maven-default-http-blocker to block an unused/dummy protocol.

Keep in mind the <blocked>true</blocked> doesn't seem to do anything even when set to false.

    <mirrors>
      <mirror>
        <id>maven-default-http-blocker</id>
        <mirrorOf>external:dummy:*</mirrorOf>
        <name>Dummy protocol to prevent http being blocked</name>
        <url>http://0.0.0.0/</url>
        <blocked>true</blocked>
      </mirror>
    </mirrors>