diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/NativeCrc32.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/NativeCrc32.java
index 0669b0abd2..3142df2da3 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/NativeCrc32.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/NativeCrc32.java
@@ -28,12 +28,12 @@
  * natively.
  */
 class NativeCrc32 {
-  
+  private static final boolean isSparc = System.getProperty("os.arch").toLowerCase().startsWith("sparc");
   /**
    * Return true if the JNI-based native CRC extensions are available.
    */
   public static boolean isAvailable() {
-    if (System.getProperty("os.arch").toLowerCase().startsWith("sparc")) {
+    if (isSparc) {
       return false;
     } else {
       return NativeCodeLoader.isNativeCodeLoaded();