diff --git a/R/run-tests.sh b/R/run-tests.sh
index 86bd8aad5f113..51ca7d600caf0 100755
--- a/R/run-tests.sh
+++ b/R/run-tests.sh
@@ -23,7 +23,7 @@ FAILED=0
 LOGFILE=$FWDIR/unit-tests.out
 rm -f $LOGFILE
 
-SPARK_TESTING=1 NOT_CRAN=true $FWDIR/../bin/spark-submit --driver-java-options "-Dlog4j.configuration=file:$FWDIR/log4j.properties" --conf spark.hadoop.fs.defaultFS="file:///" $FWDIR/pkg/tests/run-all.R 2>&1 | tee -a $LOGFILE
+SPARK_TESTING=1 NOT_CRAN=true $FWDIR/../bin/spark-submit --driver-java-options "-Dlog4j.configuration=file:$FWDIR/log4j.properties" --conf spark.hadoop.fs.defaultFS="file:///" --conf spark.driver.extraJavaOptions="-Dio.netty.tryReflectionSetAccessible=true" --conf spark.executor.extraJavaOptions="-Dio.netty.tryReflectionSetAccessible=true" $FWDIR/pkg/tests/run-all.R 2>&1 | tee -a $LOGFILE
 FAILED=$((PIPESTATUS[0]||$FAILED))
 
 NUM_TEST_WARNING="$(grep -c -e 'Warnings ----------------' $LOGFILE)"
diff --git a/pom.xml b/pom.xml
index a6a82b3339d08..44593b78c9a04 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2326,7 +2326,7 @@
               <include>**/*Suite.java</include>
             </includes>
             <reportsDirectory>${project.build.directory}/surefire-reports</reportsDirectory>
-            <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
+            <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize} -Dio.netty.tryReflectionSetAccessible=true</argLine>
             <environmentVariables>
               <!--
                 Setting SPARK_DIST_CLASSPATH is a simple way to make sure any child processes
@@ -2376,7 +2376,7 @@
             <reportsDirectory>${project.build.directory}/surefire-reports</reportsDirectory>
             <junitxml>.</junitxml>
             <filereports>SparkTestSuite.txt</filereports>
-            <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
+            <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize} -Dio.netty.tryReflectionSetAccessible=true</argLine>
             <stderr/>
             <environmentVariables>
               <!--
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 91d3a75849b0c..8dda5809fa374 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -978,6 +978,7 @@ object TestSettings {
     javaOptions in Test += "-Dspark.unsafe.exceptionOnMemoryLeak=true",
     javaOptions in Test += "-Dsun.io.serialization.extendedDebugInfo=false",
     javaOptions in Test += "-Dderby.system.durability=test",
+    javaOptions in Test += "-Dio.netty.tryReflectionSetAccessible=true",
     javaOptions in Test ++= System.getProperties.asScala.filter(_._1.startsWith("spark"))
       .map { case (k,v) => s"-D$k=$v" }.toSeq,
     javaOptions in Test += "-ea",
diff --git a/python/run-tests.py b/python/run-tests.py
index 5bcf8b0669129..88b148c6587d5 100755
--- a/python/run-tests.py
+++ b/python/run-tests.py
@@ -86,9 +86,10 @@ def run_individual_python_test(target_dir, test_name, pyspark_python):
     env["TMPDIR"] = tmp_dir
 
     # Also override the JVM's temp directory by setting driver and executor options.
+    java_options = "-Djava.io.tmpdir={0} -Dio.netty.tryReflectionSetAccessible=true".format(tmp_dir)
     spark_args = [
-        "--conf", "spark.driver.extraJavaOptions=-Djava.io.tmpdir={0}".format(tmp_dir),
-        "--conf", "spark.executor.extraJavaOptions=-Djava.io.tmpdir={0}".format(tmp_dir),
+        "--conf", "spark.driver.extraJavaOptions='{0}'".format(java_options),
+        "--conf", "spark.executor.extraJavaOptions='{0}'".format(java_options),
         "pyspark-shell"
     ]
     env["PYSPARK_SUBMIT_ARGS"] = " ".join(spark_args)
diff --git a/sql/catalyst/pom.xml b/sql/catalyst/pom.xml
index bcebb225dfaca..b416994195d01 100644
--- a/sql/catalyst/pom.xml
+++ b/sql/catalyst/pom.xml
@@ -148,7 +148,7 @@
         <groupId>org.scalatest</groupId>
         <artifactId>scalatest-maven-plugin</artifactId>
         <configuration>
-          <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
+          <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize} -Dio.netty.tryReflectionSetAccessible=true</argLine>
         </configuration>
       </plugin>
       <plugin>
diff --git a/sql/core/pom.xml b/sql/core/pom.xml
index 3a8b7d22397ff..5cd7c656ea725 100644
--- a/sql/core/pom.xml
+++ b/sql/core/pom.xml
@@ -177,7 +177,7 @@
         <groupId>org.scalatest</groupId>
         <artifactId>scalatest-maven-plugin</artifactId>
         <configuration>
-          <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
+          <argLine>-ea -Xmx4g -Xss4m -XX:ReservedCodeCacheSize=${CodeCacheSize} -Dio.netty.tryReflectionSetAccessible=true</argLine>
         </configuration>
       </plugin>
       <plugin>
diff --git a/sql/hive/pom.xml b/sql/hive/pom.xml
index f627227aa0380..882cabd347073 100644
--- a/sql/hive/pom.xml
+++ b/sql/hive/pom.xml
@@ -244,7 +244,7 @@
         <artifactId>scalatest-maven-plugin</artifactId>
         <configuration>
           <!-- Specially disable assertions since some Hive tests fail them -->
-          <argLine>-da -Xmx4g -XX:ReservedCodeCacheSize=${CodeCacheSize}</argLine>
+          <argLine>-da -Xmx4g -XX:ReservedCodeCacheSize=${CodeCacheSize} -Dio.netty.tryReflectionSetAccessible=true</argLine>
         </configuration>
       </plugin>
       <plugin>