voonhous commented on code in PR #17771:
URL: https://github.com/apache/hudi/pull/17771#discussion_r2838236337


##########
hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/TestAvroSchemaResolutionSupport.scala:
##########
@@ -120,26 +120,25 @@ class TestAvroSchemaResolutionSupport extends 
HoodieClientTestBase with ScalaAss
           // convert int to string first before conversion to binary
           val initDF = prepDataFrame(df1, colInitType)
           initDF.printSchema()
-          initDF.show(false)
+          initDF.collect
 
           // recreate table
           initialiseTable(initDF, tempRecordPath, tableType)
 
           // perform avro supported casting
           var upsertDf = prepDataFrame(df2, colInitType)
           upsertDf = castColToX(a, colToCast, upsertDf)
-          upsertDf.printSchema()
-          upsertDf.show(false)
+          upsertDf.schema.toString()

Review Comment:
   Is there a reason for `upsertDf.schema.toString()`? it's not doing anything 
here iiuc.



##########
hudi-common/src/test/java/org/apache/hudi/common/util/collection/TestClosableSortedDedupingIterator.java:
##########
@@ -34,6 +36,7 @@
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class TestClosableSortedDedupingIterator {
+  private static final Logger LOG = 
LoggerFactory.getLogger(TestClosableSortedDedupingIterator.class);

Review Comment:
   Let's use Lombok for this?



##########
hudi-hadoop-common/src/test/java/org/apache/hudi/io/storage/TestHoodieNativeAvroHFileReaderCaching.java:
##########
@@ -60,6 +62,7 @@
 import static org.mockito.Mockito.when;
 
 public class TestHoodieNativeAvroHFileReaderCaching {
+  private static final Logger LOG = 
LoggerFactory.getLogger(TestHoodieNativeAvroHFileReaderCaching.class);

Review Comment:
   Same here



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