[SENTRY-1993] StringIndexOutOfBoundsException in HMSPathsDumper.java

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Assignee: Misha Dmitriev
• Reporter: Misha Dmitriev
• Created: 16/Oct/17 18:35
• Updated: 22/Nov/17 14:08
• Resolved: 20/Nov/17 21:42

Description

The following line in HMSPathsDumper.java is causing StringIndexOutOfBoundsException:

if (tChildPathElement.charAt(0) == DupDetector.REPLACEMENT_STRING_PREFIX) {

It only happens when a path element is "", when someone mistakenly specifies hdfs path with two "/" in the path section, like hdfs://server//element1//element2, instead of hdfs://server/element1/element2. In principle, such paths are invalid, but this code should be made resistant to them anyway.