Resolving artifacts when using versions in feature pack is very slow

[spyrkob]

When the manifest doesn't contain all artifact versions, the fallback is resolving each missing artifact separately. This results in a very slow download.

Handiling of the missing artifacts needs to be changes to batch resolve all missing artifacts.

The way ChannelMavenArtifactRepositoryManager#resolveAll handles missing streams is by intercepting NoStreamFoundException thrown channelSession.resolveMavenArtifacts. However this exception contains only a single artifact at a time.

One solution would be changing wildfly-channels ChannelSession implementation to aggregate all failed artifacts into one exception.

[parsharma]

@spyrkob are you working on this?

[spyrkob]

@parsharma no I'm not you can take it