legacySupport.setSession(session);

            return doExecute(request, session, result, chainedWorkspaceReader);
        } finally {
            sessionScope.exit();
        }
    }

    private MavenExecutionResult doExecute(
            MavenExecutionRequest request,
            MavenSession session,
            MavenExecutionResult result,

    }

    @Override
    protected int execute(C context) throws Exception {
        toolchains(context);
        populateRequest(context, context.mavenExecutionRequest);
        return doExecute(context);
    }

    @Override
    protected void prepare(C context) throws Exception {
        // explicitly fill in "defaults"?