SONAR suggestions - prevent truncation of arithmetic expressions

Change-Id: I4694c0c3183b991a4f0db793f584bc77a5fb7d60
diff --git a/drivers/juniper/src/main/java/org/onosproject/drivers/juniper/JuniperUtils.java b/drivers/juniper/src/main/java/org/onosproject/drivers/juniper/JuniperUtils.java
index f8fb3e4..4f23b79 100644
--- a/drivers/juniper/src/main/java/org/onosproject/drivers/juniper/JuniperUtils.java
+++ b/drivers/juniper/src/main/java/org/onosproject/drivers/juniper/JuniperUtils.java
@@ -426,7 +426,7 @@
         Matcher matcher = SPEED_PATTERN.matcher(s);
         if (matcher.matches()) {
             // numeric
-            int n = Integer.parseInt(matcher.group(1));
+            long n = Long.parseLong(matcher.group(1));
             String unit = matcher.group(2);
             if ("m".equalsIgnoreCase(unit)) {
                 // Mbps