https://issues.apache.org/bugzilla/show_bug.cgi?id=47705

ArithmeticException: / by zero when expiring sessions via manager

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@809603 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/java/org/apache/catalina/manager/ManagerServlet.java b/java/org/apache/catalina/manager/ManagerServlet.java
index 665568e..ba6737c 100644 (file)
--- a/java/org/apache/catalina/manager/ManagerServlet.java
+++ b/java/org/apache/catalina/manager/ManagerServlet.java
@@ -1106,6 +1106,8 @@ public class ManagerServlet
             int histoInterval = maxInactiveInterval / maxCount;
             if ( histoInterval * maxCount < maxInactiveInterval ) 
                 histoInterval++;
+            if (0==histoInterval)
+                histoInterval=1;
             maxCount = maxInactiveInterval / histoInterval;
             if ( histoInterval * maxCount < maxInactiveInterval ) 
                 maxCount++;