ChenSammi commented on code in PR #9564:
URL: https://github.com/apache/ozone/pull/9564#discussion_r2652642093


##########
hadoop-ozone/cli-shell/src/main/java/org/apache/hadoop/ozone/shell/acl/GetAclHandler.java:
##########
@@ -19,19 +19,61 @@
 
 import java.io.IOException;
 import java.util.List;
+import java.util.stream.Collectors;
 import org.apache.hadoop.ozone.OzoneAcl;
 import org.apache.hadoop.ozone.client.OzoneClient;
 import org.apache.hadoop.ozone.security.acl.OzoneObj;
+import picocli.CommandLine.Option;
 
 /**
  * Get ACLs.
  */
 public abstract class GetAclHandler extends AclHandler {
 
+  @Option(names = {"--string", "-o"},

Review Comment:
   I guess(didn't test it) defaultValue = "true" will cause problem, there 
could be no way to get a false state, could you test it if defaultValue = 
"true" works?  The reason why defaultValue = "true" is recommended at first 
place is to keep the backward compatibility, but if it's not feasible, I think 
defaultValue = "false" is acceptable, though it will change the current output 
behavior, but just format, not content. 



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