[LIVY-849] Livy http client does not decode password correctly

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.6.0, 0.7.0
• Fix Version/s: 0.9.0
• Component/s: Tests
• Assignee: shanyu zhao
• Reporter: shanyu zhao
• Created: 09/Mar/21 07:13
• Updated: 12/Nov/22 22:10

Description

If using special characters, e.g. "+" in livy password, creating HttpClient will result in 401 Unauthorized error.

To reproduce, we used URL like this to run Livy integration test against external cluster (ExternalCluster.scala):
https://user:[e-mail]:8443/livy/v1

The problem is in LivyConnection.java, it is using URLDecoder.decode() to decode the userInfo we get from uri.getUserInfo(). Note that uri.getUserInfo() is already decoded string, a further decode() call will result in wrong password (e.g. change '+' to ' ').