[HDFS-13933] [JDK 11] SWebhdfsFileSystem related tests fail with hostname verification problems for "localhost"

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Component/s: test
• Assignee: Unassigned
• Reporter: Andrew Kyle Purtell
• Created: 21/Sep/18 18:59
• Updated: 01/May/19 17:37
• Resolved: 01/May/19 17:37

Description

Tests with issues:

• TestHttpFSFWithSWebhdfsFileSystem
• TestWebHdfsTokens
• TestSWebHdfsFileContextMainOperations

Possibly others. Failure looks like

java.io.IOException: localhost:50260: HTTPS hostname wrong:  should be <localhost>

These tests set up a trust store and use HTTPS connections, and with Java 11 the client validation of the server name in the generated self-signed certificate is failing. Exceptions originate in the JRE's HTTP client library. How everything hooks together uses static initializers, static methods, JUnit MethodRules... There's a lot to unpack, not sure how to fix.

This is Java 11+28

Issue Links

• blocks: HADOOP-15338 Java 11 runtime support
• is a child of: HADOOP-16264 [JDK11] Track failing Hadoop unit tests