Fix multithread build by ensuring jars are build correctly before copy those jars#294

copybara-service[bot] merged 1 commit intoGoogleCloudPlatform:mainGoogleCloudPlatform/appengine-java-standard:mainfrom

olamy:fix-dependency-tree-between-modulesolamy/appengine-java-standard:fix-dependency-tree-between-modulesCopy head branch name to clipboard