Revert "[SPARK-1398] Removed findbugs jsr305 dependency"

This reverts commit 92a86b285f.

core/pom.xml

@@ -82,6 +82,10 @@
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.code.findbugs</groupId>
+      <artifactId>jsr305</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>

pom.xml

@@ -214,6 +214,11 @@
         <artifactId>guava</artifactId>
         <version>14.0.1</version>
       </dependency>
+      <dependency>
+        <groupId>com.google.code.findbugs</groupId>
+        <artifactId>jsr305</artifactId>
+        <version>1.3.9</version>
+      </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>

project/SparkBuild.scala

@@ -296,6 +296,7 @@ object SparkBuild extends Build {
     name := "spark-core",
     libraryDependencies ++= Seq(
         "com.google.guava"           % "guava"            % "14.0.1",
+        "com.google.code.findbugs"   % "jsr305"           % "1.3.9",
         "log4j"                      % "log4j"            % "1.2.17",
         "org.slf4j"                  % "slf4j-api"        % slf4jVersion,
         "org.slf4j"                  % "slf4j-log4j12"    % slf4jVersion,