diff --git a/persistit/core/src/main/java/com/persistit/JournalManagerBench.java b/persistit/core/src/main/java/com/persistit/JournalManagerBench.java
index 958e73353a..549e81b83a 100644
--- a/persistit/core/src/main/java/com/persistit/JournalManagerBench.java
+++ b/persistit/core/src/main/java/com/persistit/JournalManagerBench.java
@@ -1,5 +1,6 @@
 /**
  * Copyright 2012 Akiban Technologies, Inc.
+ * Portions Copyrighted 2026 3A Systems, LLC.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -87,12 +88,12 @@ private JournalManagerBench(final String[] args) throws Exception {
     private void runTest() throws Exception {
         file = new File(ap.getStringValue("datapath"), "JManBench_TestFile");
         fc = new RandomAccessFile(file, "rw").getChannel();
-        preallocateFile(ap.getIntValue("prealloc") * 1024 * 1024);
+        preallocateFile(ap.getIntValue("prealloc") * 1024L * 1024);
         for (int i = 0; i < bytes.length; i++) {
             bytes[i] = (byte) ('-');
         }
         final int align = ap.getIntValue("align");
-        final long extension = ap.getIntValue("extension") * 1024 * 1024;
+        final long extension = ap.getIntValue("extension") * 1024L * 1024;
 
         final long start = System.nanoTime();
         final long expires = start + ap.getIntValue("duration") * NS_PER_S;
diff --git a/persistit/examples/SimpleTransaction/SimpleTransaction.java b/persistit/examples/SimpleTransaction/SimpleTransaction.java
index becd7cd77f..b28758814a 100644
--- a/persistit/examples/SimpleTransaction/SimpleTransaction.java
+++ b/persistit/examples/SimpleTransaction/SimpleTransaction.java
@@ -1,5 +1,6 @@
 /**
  * Copyright 2005-2012 Akiban Technologies, Inc.
+ * Portions Copyrighted 2026 3A Systems, LLC.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -104,7 +105,7 @@ public static void main(String[] args) throws Exception {
             System.out.println("Completed transactions: " + _committedTransactionCount);
             System.out.println("Failed transactions: " + _failedTransactionCount);
             System.out.println("Retried transactions: " + _rolledBackTransactionCount);
-            System.out.println("Average completed transactions rate: " + (_committedTransactionCount * 1000 / time)
+            System.out.println("Average completed transactions rate: " + (_committedTransactionCount * 1000L / time)
                     + " per second");
 
             int endingBalance = balance(accountEx);
diff --git a/persistit/ui/src/main/java/com/persistit/ui/AdminUI.java b/persistit/ui/src/main/java/com/persistit/ui/AdminUI.java
index 5a47719ae6..e3786ff498 100644
--- a/persistit/ui/src/main/java/com/persistit/ui/AdminUI.java
+++ b/persistit/ui/src/main/java/com/persistit/ui/AdminUI.java
@@ -1,5 +1,6 @@
 /**
  * Copyright 2005-2012 Akiban Technologies, Inc.
+ * Portions Copyrighted 2026 3A Systems, LLC.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -1285,7 +1286,7 @@ public void run() {
         if (interval >= 0)
             _refreshInterval = interval;
         if (_refreshInterval > 0) {
-            _refreshTimer.schedule(_refreshTimerTask, 0, _refreshInterval * 1000);
+            _refreshTimer.schedule(_refreshTimerTask, 0, _refreshInterval * 1000L);
         } else {
             _refreshTimer.schedule(_refreshTimerTask, 0);
         }