[SPARK-23667] Scala version check will fail due to launcher directory doesn't exist

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.3.0
• Component/s: Spark Core
• Assignee: Unassigned
• Reporter: Chenzhao Guo
• Created: 13/Mar/18 11:30
• Updated: 18/May/18 14:10
• Resolved: 18/May/18 14:10

Description

In some cases when outer project use pre-built Spark as dependency, getScalaVersion will fail due to launcher directory doesn't exist. This PR also checks in jars directory.

Issue Links

• links to: [Github] Pull Request #20809 (gczsjdy)