Index: CDRInputStream.java
===================================================================
RCS file: /cvs/JacORB/src/org/jacorb/orb/CDRInputStream.java,v
retrieving revision 1.134
diff -u -r1.134 CDRInputStream.java
--- CDRInputStream.java	10 May 2011 15:40:40 -0000	1.134
+++ CDRInputStream.java	24 Jun 2011 18:21:17 -0000
@@ -1251,6 +1251,12 @@
         // read size (#bytes)
         int size = _read4int( littleEndian, buffer, pos);
 
+        // Some ORBs wrongly encode empty string with a size 0
+        if (size == 0)
+        {
+            return "";
+        }
+
         if (size < 1)
         {
             throw new MARSHAL("invalid string size: " + size);