diff --git a/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/BigQueryTestView.java b/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/BigQueryTestView.java
index eef2577741a5..7ffbf0818197 100644
--- a/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/BigQueryTestView.java
+++ b/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/BigQueryTestView.java
@@ -24,14 +24,12 @@
 public class BigQueryTestView
         extends TestTable
 {
-    private final SqlExecutor sqlExecutor;
     private final TestTable table;
     private final String viewName;
 
     public BigQueryTestView(SqlExecutor sqlExecutor, TestTable table)
     {
         super(sqlExecutor, table.getName(), null);
-        this.sqlExecutor = requireNonNull(sqlExecutor, "sqlExecutor is null");
         this.table = requireNonNull(table, "table is null");
         this.viewName = table.getName() + "_view";
     }
diff --git a/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/BaseSharedMetastoreTest.java b/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/BaseSharedMetastoreTest.java
index 1f3ee382e608..0037de7eb54a 100644
--- a/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/BaseSharedMetastoreTest.java
+++ b/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/BaseSharedMetastoreTest.java
@@ -16,8 +16,6 @@
 import io.trino.testing.AbstractTestQueryFramework;
 import org.testng.annotations.Test;
 
-import java.nio.file.Path;
-
 import static io.trino.testing.sql.TestTable.randomTableSuffix;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
@@ -27,7 +25,6 @@ public abstract class BaseSharedMetastoreTest
         extends AbstractTestQueryFramework
 {
     protected final String schema = "test_shared_schema_" + randomTableSuffix();
-    protected Path dataDirectory;
 
     protected abstract String getExpectedHiveCreateSchema(String catalogName);
 
diff --git a/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/TestSharedHiveMetastore.java b/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/TestSharedHiveMetastore.java
index c646834f4d22..376728854835 100644
--- a/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/TestSharedHiveMetastore.java
+++ b/plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/TestSharedHiveMetastore.java
@@ -34,6 +34,8 @@
 import io.trino.tpch.TpchTable;
 import org.testng.annotations.AfterClass;
 
+import java.nio.file.Path;
+
 import static io.trino.plugin.iceberg.IcebergQueryRunner.ICEBERG_CATALOG;
 import static io.trino.plugin.tpch.TpchMetadata.TINY_SCHEMA_NAME;
 import static io.trino.testing.QueryAssertions.copyTpchTables;
@@ -44,6 +46,7 @@ public class TestSharedHiveMetastore
         extends BaseSharedMetastoreTest
 {
     private static final String HIVE_CATALOG = "hive";
+    private Path dataDirectory;
 
     @Override
     protected QueryRunner createQueryRunner()
diff --git a/pom.xml b/pom.xml
index d2a4505ac7a0..5c646807a972 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1898,6 +1898,7 @@
                                     -Xep:EqualsIncompatibleType:ERROR \
                                     -Xep:FallThrough:ERROR \
                                     -Xep:GuardedBy:OFF <!-- needs some careful inspection --> \
+                                    -Xep:HidingField:ERROR \
                                     -Xep:ImmutableEnumChecker:OFF <!-- flags enums with List fields even if initialized with ImmutableList, and other false positives --> \
                                     -Xep:ImmutableSetForContains:ERROR \
                                     -Xep:InconsistentCapitalization:ERROR <!-- fields/variables should not differ only in case --> \