swagger-codegen-maven-plugin threadsafe?

[dantran]

This is a request to make maven plugin thread safe in order to take advantage of maven multi threaded build

Swagger-codegen version

2.2.2

[MosheElisha]

Same request for the new io.swagger.codegen.v3:swagger-codegen-maven-plugin.

When running maven with parallel execution (-T / --threads), I get the following warning on the generate goal:

*****************************************************************
* Your build is requesting parallel execution, but project      *
* contains the following plugin(s) that have goals not marked   *
* as @threadSafe to support parallel building.                  *
* While this /may/ work fine, please look for plugin updates    *
* and/or request plugins be made thread-safe.                   *
* If reporting an issue, report it against the plugin in        *
* question, not against maven-core                              *
*****************************************************************
The following plugins are not marked @threadSafe in subscribers-api-server:
io.swagger.codegen.v3:swagger-codegen-maven-plugin:3.0.18
Enable debug to see more precisely which goals are not marked @threadSafe.
*****************************************************************

As far as I can tell, everything is working fine. The only issue is this warning report but it would be nice if this could be fixed.

[gscokart]

It is not only a problem of error message.

I have a multi module project, with submodules using different config of the plugin. The config of one modules leak into the other one when running in parallel. This break my build (I have different supportingFilesToGenerate and some modules are thus missing some of the required supporting files).

[MosheElisha]

Confirming it is a real issue. When running maven with threads, generation in parallel causes compilation errors in case multiple module are using this plugin.

[MosheElisha]

I found a fork project https://github.com/OpenAPITools/openapi-generator/ which has an openapi-generator-maven-plugin and it seems this issue was already resolved there.

[frantuma]

partial fix implemented in #10329, keeping this ticket open to track full addressing of concurrency in v2 and v3