Index: /src/com/caucho/quercus/env/StringBuilderValue.java
===================================================================
--- /src/com/caucho/quercus/env/StringBuilderValue.java	(revision 4021)
+++ /src/com/caucho/quercus/env/StringBuilderValue.java	(working copy)
@@ -1173,7 +1173,7 @@
   {
     // php/4407 - oracle clob callback passes very long length
 
-    int sublen = Math.min(8192, (int) length);
+    int sublen = (int) Math.min(8192L, length);
 
     try {
       while (length > 0) {