--- CircuitBreaker/src/dk/thoerup/circuitbreaker/web/ViewCircuitBreaker.java	2012/08/31 06:33:37	1845
+++ CircuitBreaker/src/dk/thoerup/circuitbreaker/web/ViewCircuitBreaker.java	2012/08/31 06:38:35	1846
@@ -84,10 +84,14 @@
 		if (breaker instanceof AccountingCircuitBreaker) {
 			AccountingCircuitBreaker acb = (AccountingCircuitBreaker) breaker;
 	
-			double failure_percentage = ((double) acb.getTotalFailureCount()*100) / ((double) acb.getTotalCallCount() );
 			StringBuilder sbf = new StringBuilder();
-			Formatter formatter = new Formatter(sb);
-			formatter.format("%.2f", failure_percentage);
+			if (acb.getTotalCallCount() > 0) {
+				double failure_percentage = ((double) acb.getTotalFailureCount()*100) / ((double) acb.getTotalCallCount() );
+				Formatter formatter = new Formatter(sbf);
+				formatter.format("%.2f", failure_percentage);
+			} else {
+				sbf.append("0.0");
+			}
 			
 
 			sb.append("<tr><th colspan=\"2\">Accounting</th></tr>\n");