Update gradle MergePlugin to use the 'project.sourceSets.main.output' for jar content rather than 'project.jar.source'. This prevents superfluous MANIFEST.MF files from appearing in the merged jar. Issue: SPR-10324
Update gradle MergePlugin to use the 'project.sourceSets.main.output' for jar content rather than 'project.jar.source'. This prevents superfluous MANIFEST.MF files from appearing in the merged jar. Issue: SPR-10324