diff --git a/core/src/main/scala/org/apache/spark/TestUtils.scala b/core/src/main/scala/org/apache/spark/TestUtils.scala
index 14820ebc0c9c1..d466131083b66 100644
--- a/core/src/main/scala/org/apache/spark/TestUtils.scala
+++ b/core/src/main/scala/org/apache/spark/TestUtils.scala
@@ -84,7 +84,8 @@ object TestUtils {
   def createCompiledClass(className: String, destDir: File, value: String = ""): File = {
     val compiler = ToolProvider.getSystemJavaCompiler
     val sourceFile = new JavaSourceFromString(className,
-      "public class " + className + " { @Override public String toString() { return \"" + value + "\";}}")
+      "public class " + className + " { @Override public String toString() { " +
+       "return \"" + value + "\";}}")
 
     // Calling this outputs a class file in pwd. It's easier to just rename the file than
     // build a custom FileManager that controls the output location.