Fix build warnings

Change-Id: I3380441ab6f0b799eb696a7dac3153fabb703932
diff --git a/gradlew.bat b/gradlew.bat
index 107acd3..bb10664 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -33,7 +33,7 @@
 for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" "-XX:+IgnoreUnrecognizedVMOptions" "--enable-native-access=ALL-UNNAMED"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome