[DAFFODIL-2355] Update to Apache license for Scala dependencies

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 2.7.0
• Component/s: Clean Ups
• Assignee: Steve Lawrence
• Reporter: Steve Lawrence
• Created: 19/Jun/20 12:58
• Updated: 01/Jul/20 14:05
• Resolved: 29/Jun/20 13:06

Description

There are a few places where we include Scala code/dependenies with Daffodil:

• daffodil-lib/src/main/scala/org/apache/daffodil/util/UniquenessCache.scalaUniquenessCache.scala in our source
• scala-xml jar in daffodil-cli helper binaries
• scala-parser-combinators jar in daffodil-cli helper binaries

At one point these were all BSD-3 licensed, but it looks like that changed around the scala 2.12.8 time frame. We should make the following changes make sure our licensing information is up to date:

• Update UniquenessCache.scala to use the Apache v2 header from https://github.com/scala/scala/blob/2.13.x/src/library/scala/Symbol.scala (the content does not appear to have changed, but we should comfirm this)
• Remove the Scala references in LICENSE and daffodil-cli/bin.LICENSE--that's no longer necessary since Scala is Apache v2
• Copy the NOTICE content from scala into NOTICE
• Copy the NOTICE content from scala, scala-xml, and scala-parser-combinators into daffodil-cli/bin.NOTICE