virajjasani commented on a change in pull request #3105:
URL: https://github.com/apache/hbase/pull/3105#discussion_r603840821



##########
File path: 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALCoprocessorHost.java
##########
@@ -90,6 +90,10 @@ public void shutdown() {
       super.shutdown();
       MetricsCoprocessor.removeRegistry(this.metricRegistry);
     }
+
+    @Override public String toString() {

Review comment:
       Is `toString()` also required for `WALCoprocessorHost`?

##########
File path: hbase-client/pom.xml
##########
@@ -72,6 +72,10 @@
       <type>test-jar</type>
       <scope>test</scope>
     </dependency>
+    <dependency>

Review comment:
       Hmm, it's not just server but client too can't live without it.

##########
File path: 
hbase-coprocessor/src/main/java/org/apache/hadoop/hbase/coprocessor/ObserverContextImpl.java
##########
@@ -87,19 +89,5 @@ public boolean shouldBypass() {
     return Optional.ofNullable(caller);
   }
 
-  /**
-   * Instantiates a new ObserverContext instance if the passed reference is 
<code>null</code> and
-   * sets the environment in the new or existing instance. This allows 
deferring the instantiation
-   * of a ObserverContext until it is actually needed.
-   * @param <E> The environment type for the context
-   * @param env The coprocessor environment to set
-   * @return An instance of <code>ObserverContext</code> with the environment 
set
-   */
-  @Deprecated

Review comment:
       We are good to remove this in 2.x releases?




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