[HDFS-13932] [JDK 11] Casts to BlockStoragePolicy[] in unit tests raise ClassCastExceptions

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.2.0
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Andrew Kyle Purtell
• Reporter: Andrew Kyle Purtell
• Created: 21/Sep/18 18:18
• Updated: 27/Sep/18 03:10
• Resolved: 27/Sep/18 02:46

Description

For example

java.lang.ClassCastException: class [Ljava.lang.Object; cannot be cast to class [Lorg.apache.hadoop.hdfs.protocol.BlockStoragePolicy; ([Ljava.lang.Object; is in module java.base of loader 'bootstrap'; [Lorg.apache.hadoop.hdfs.protocol.BlockStoragePolicy; is in unnamed module of loader 'app')
at org.apache.hadoop.hdfs.web.TestWebHDFS.testStoragePolicy(TestWebHDFS.java:1391)

This is with Java 11+28.

Issue Links

• blocks: HADOOP-15338 Java 11 runtime support