busbey commented on a change in pull request #2180:
URL: https://github.com/apache/hbase/pull/2180#discussion_r463454640
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File path:
hbase-common/src/test/java/org/apache/hadoop/hbase/HBaseCommonTestingUtility.java
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@@ -69,7 +69,7 @@
Compression.Algorithm.NONE, Compression.Algorithm.GZ
};
- protected Configuration conf;
+ protected final Configuration conf;
Review comment:
Changing this variable to final break binary compatibility, but is
needed to make access to this field threadsafe.
I could maintain binary compatibility by making a _new_ final variable
called "originalConf" or something like that which is used by our own
internals. but that would still cause a behavior change because if someone made
a subclass of these classes that assigned to the `conf` variable we would not
pay any attention to that change.
I think we should just release note the break, especially given the on-going
issue of "should we be labeling these things IA.Public yet?"
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