From 96d41c94ceee04bc645d5dff452c4398ea70286a Mon Sep 17 00:00:00 2001
From: Josh Rosen <joshrosen@databricks.com>
Date: Thu, 30 Apr 2015 11:18:03 -0700
Subject: [PATCH] Use -XDignore.symbol.file to suppress warnings about
 sun.misc.Unsafe usage

---
 pom.xml                  | 6 ++++++
 project/SparkBuild.scala | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index c85c5feeaf383..ec9c3656dbafc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1162,6 +1162,8 @@
               <javacArg>${java.version}</javacArg>
               <javacArg>-target</javacArg>
               <javacArg>${java.version}</javacArg>
+              <!-- This option is needed to suppress warnings from sun.misc.Unsafe usage -->
+              <javacArg>-XDignore.symbol.file</javacArg>
             </javacArgs>
             <!-- The following plugin is required to use quasiquotes in Scala 2.10 and is used
                  by Spark SQL for code generation. -->
@@ -1184,6 +1186,10 @@
             <encoding>UTF-8</encoding>
             <maxmem>1024m</maxmem>
             <fork>true</fork>
+            <compilerArgs>
+              <!-- This option is needed to suppress warnings from sun.misc.Unsafe usage -->
+              <arg>-XDignore.symbol.file</arg>
+            </compilerArgs>
           </configuration>
         </plugin>
         <!-- Surefire runs all Java tests -->
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index b7dbcd9bc562a..cc3f3d59ad83f 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -140,7 +140,9 @@ object SparkBuild extends PomBuild {
     javacOptions in (Compile, doc) ++= {
       val Array(major, minor, _) = System.getProperty("java.version").split("\\.", 3)
       if (major.toInt >= 1 && minor.toInt >= 8) Seq("-Xdoclint:all", "-Xdoclint:-missing") else Seq.empty
-    }
+    },
+    // This option is needed to suppress warnings from sun.misc.Unsafe usage
+    javacOptions in Compile += "-XDignore.symbol.file"
   )
 
   def enable(settings: Seq[Setting[_]])(projectRef: ProjectRef) = {