Index: main/java/org/exolab/castor/builder/BaseFactory.java
===================================================================
--- main/java/org/exolab/castor/builder/BaseFactory.java	(Revision 6895)
+++ main/java/org/exolab/castor/builder/BaseFactory.java	(Arbeitskopie)
@@ -109,7 +109,7 @@
                 }
                 skip = true;
             } else if (ch == '*') {
-                if (chars[i] == '/') {
+                if (i < chars.length && chars[i] == '/') {
                     newChars[count++] = ch;
                     newChars[count++] = '\\';
                 }