Don't rely on potentially disabled assertion to catch unknown state

1 files changed, 1 insertions, 1 deletions

diff --git a/documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusVisitorSession.java b/documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusVisitorSession.java
index 659803beb60..db1bb1f5f0d 100755
--- a/documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusVisitorSession.java
+++ b/documentapi/src/main/java/com/yahoo/documentapi/messagebus/MessageBusVisitorSession.java
@@ -424,7 +424,7 @@ public class MessageBusVisitorSession implements VisitorSession {
                 updateStateUnlessAlreadyFailed(newState);
                 break;
             default:
-                assert(false);
+                com.yahoo.protect.Process.logAndDie("Invalid target transition state: " + newState);
         }
         log.log(LogLevel.DEBUG, "Session '" + sessionName + "' is now in state " +  state);
         return state;