829c37
@@ -74,7 +74,7 @@
public class TimeRange {
   throws IOException {
     if (minStamp < 0 || maxStamp < 0) {
       throw new IllegalArgumentException("Timestamp cannot be negative. minStamp:" + minStamp
-        + ", maxStamp" + maxStamp);
+        + ", maxStamp:" + maxStamp);
     }
     if(maxStamp < minStamp) {
       throw new IOException("maxStamp is smaller than minStamp");
