[SPARK-13401][SQL][TESTS] Fix SQL test warnings.

## What changes were proposed in this pull request?

This fix tries to fix several SQL test warnings under the sql/core/src/test directory. The fixed warnings includes "[unchecked]", "[rawtypes]", and "[varargs]".

## How was this patch tested?

All existing tests passed.

Author: Yong Tang <yong.tang.github@outlook.com>

Closes #11857 from yongtang/SPARK-13401.

6 files changed, 6 insertions, 0 deletions

diff --git a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroArrayOfArray.java b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroArrayOfArray.java
index ee32782790..8de0b06b16 100644
--- a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroArrayOfArray.java
+++ b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroArrayOfArray.java
@@ -129,6 +129,7 @@ public class AvroArrayOfArray extends org.apache.avro.specific.SpecificRecordBas
     }
 
     @Override
+    @SuppressWarnings(value="unchecked")
     public AvroArrayOfArray build() {
       try {
         AvroArrayOfArray record = new AvroArrayOfArray();
diff --git a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroMapOfArray.java b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroMapOfArray.java
index 727f6a7bf7..29f3109f83 100644
--- a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroMapOfArray.java
+++ b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroMapOfArray.java
@@ -129,6 +129,7 @@ public class AvroMapOfArray extends org.apache.avro.specific.SpecificRecordBase
     }
 
     @Override
+    @SuppressWarnings(value="unchecked")
     public AvroMapOfArray build() {
       try {
         AvroMapOfArray record = new AvroMapOfArray();
diff --git a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroNonNullableArrays.java b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroNonNullableArrays.java
index 934793f42f..c5522ed1e5 100644
--- a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroNonNullableArrays.java
+++ b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/AvroNonNullableArrays.java
@@ -182,6 +182,7 @@ public class AvroNonNullableArrays extends org.apache.avro.specific.SpecificReco
     }
 
     @Override
+    @SuppressWarnings(value="unchecked")
     public AvroNonNullableArrays build() {
       try {
         AvroNonNullableArrays record = new AvroNonNullableArrays();
diff --git a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/Nested.java b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/Nested.java
index a7bf484191..f84e3f2d61 100644
--- a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/Nested.java
+++ b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/Nested.java
@@ -182,6 +182,7 @@ public class Nested extends org.apache.avro.specific.SpecificRecordBase implemen
     }
 
     @Override
+    @SuppressWarnings(value="unchecked")
     public Nested build() {
       try {
         Nested record = new Nested();
diff --git a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/ParquetAvroCompat.java b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/ParquetAvroCompat.java
index ef12d193f9..46fc608398 100644
--- a/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/ParquetAvroCompat.java
+++ b/sql/core/src/test/gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro/ParquetAvroCompat.java
@@ -235,6 +235,7 @@ public class ParquetAvroCompat extends org.apache.avro.specific.SpecificRecordBa
     }
 
     @Override
+    @SuppressWarnings(value="unchecked")
     public ParquetAvroCompat build() {
       try {
         ParquetAvroCompat record = new ParquetAvroCompat();
diff --git a/sql/core/src/test/java/test/org/apache/spark/sql/JavaDatasetSuite.java b/sql/core/src/test/java/test/org/apache/spark/sql/JavaDatasetSuite.java
index 4b8b0d9d4f..3bff129ae2 100644
--- a/sql/core/src/test/java/test/org/apache/spark/sql/JavaDatasetSuite.java
+++ b/sql/core/src/test/java/test/org/apache/spark/sql/JavaDatasetSuite.java
@@ -309,6 +309,7 @@ public class JavaDatasetSuite implements Serializable {
   }
 
   @SafeVarargs
+  @SuppressWarnings("varargs")
   private static <T> Set<T> asSet(T... records) {
     return toSet(Arrays.asList(records));
   }