ayushtkn commented on code in PR #4215:
URL: https://github.com/apache/hadoop/pull/4215#discussion_r1106558387
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/WritableName.java:
##########
@@ -92,7 +92,7 @@ public static synchronized Class<?> getClass(String name,
Configuration conf
) throws IOException {
Class<?> writableClass = NAME_TO_CLASS.get(name);
if (writableClass != null)
- return writableClass.asSubclass(Writable.class);
+ return writableClass;
Review Comment:
thx. the method is there since 2009, that is deemed stable :)
In general there is a line as well in the compat
```
the expectation that an interface should “eventually” stabilize and be
promoted to Stable
```
but we aren't changing and the hadoop utils I feel are widely used, and
these annotations just help to dodge the complains from downstream when their
code breaks, "Your fault, Hadoop never said you can use this"
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