srowen commented on code in PR #39688:
URL: https://github.com/apache/spark/pull/39688#discussion_r1083302080


##########
core/src/main/scala/org/apache/spark/status/protobuf/Utils.scala:
##########
@@ -17,16 +17,18 @@
 
 package org.apache.spark.status.protobuf
 
-import com.google.protobuf.MessageOrBuilder
-
 object Utils {
   def getOptional[T](condition: Boolean, result: () => T): Option[T] = if 
(condition) {
     Some(result())
   } else {
     None
   }
 
-  def setStringField(input: String, f: String => MessageOrBuilder): Unit = {
+
+  // TODO(SPARK-42147): Restore the signature of `f` when `f` is declared as
+  //  `f: String => MessageOrBuilder` and `setStringField` used by other 
modules
+  //  not cause maven build failure
+  def setStringField(input: String, f: String => Any): Unit = {

Review Comment:
   If the return value of f() doesn't matter, then this signature seems fine? 
no need to change it later
   Did some change actually fail to compile as a result in master?



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