I support and maintain a platform used by a couple hundred
SpringBoot/JAX-RS/Maven/K8S services. When new services are created, a
Maven archetype is used to create the service skeleton. This has worked
fine for quite a while.
We're now working on a variation using SpringMVC instead of JAX-RS, and
eventually making that the default.
One of my team members took the existing Jersey/JAX-RS archetype project,
made a copy, and then changed a bunch of things for SpringMVC instead of
JAX-RS. We installed that archetype in our local maven repo for initial
testing, using "mvn install".
We run a command line like the following:
mvn archetype:generate -DgroupId=com.org.idp -DartifactId=MyApplication
-Dpackage=com.org.idp -DarchetypeGroupId=com.org.idse
-DarchetypeArtifactId=idse-springmvc-archetype
-DarchetypeVersion=2.0.0-SNAPSHOT
The "archetypeVersion" property value corresponds to the version attribute
in the pom.xml of the archetype.
This produces the following output:
--------------------
[INFO] Generating project in Batch mode
[WARNING] Archetype not found in any catalog. Falling back to central
repository.
[WARNING] Add a repository with id 'archetype' in your settings.xml if
archetype's repository is elsewhere.
Downloading from nexus:
https://repocentral.it.att.com:8443/nexus/content/groups/att-public-group/com/att/idse/idse-springmvc-archetype/2.0.0-SNAPSHOT/maven-metadata.xml
[INFO]
------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 52.232 s
[INFO] Finished at: 2023-10-04T13:33:46-07:00
[INFO]
------------------------------------------------------------------------
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-archetype-plugin:3.2.1:generate
(default-cli) on project standalone-pom: The defined artifact is not an
archetype -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions,
please read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
--------------------
This doesn't tell me WHY it thinks this is not an archetype.
I find some confusing docs about creating and installing archetypes.
I found this page:
https://maven.apache.org/guides/mini/guide-creating-archetypes.html .
This example is curious, as the pom.xml for the archetype references the
"archetype-packaging" extension, but the text says nothing about this. In
fact, it clearly says "All you need to specify is a groupId, artifactId and
version". Neither our working archetype or the new one references that
extension.
I also found this issue: https://issues.apache.org/jira/browse/ARCHETYPE-529
. No one ever responded to this, so perhaps the reporter is way off. I see
that this mentions the "create-from-project" goal. This is not mentioned in
the previous doc page.
What else can I look at to debug this problem?
