svn commit: r1295754 - /openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java

[hthomann]

Author: hthomann
Date: Thu Mar  1 19:27:26 2012
New Revision: 1295754

URL: http://svn.apache.org/viewvc?rev=1295754&view=rev
Log:
OPENJPA-2055: Added code to account for IPv6 addresses.

Modified:
    
openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java

Modified: 
openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java
URL: 
http://svn.apache.org/viewvc/openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java?rev=1295754&r1=1295753&r2=1295754&view=diff
==============================================================================
--- 
openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java
 (original)
+++ 
openjpa/branches/2.2.x/openjpa-lib/src/main/java/org/apache/openjpa/lib/util/UUIDGenerator.java
 Thu Mar  1 19:27:26 2012
@@ -118,7 +118,13 @@ public class UUIDGenerator {
 
         IP = new byte[6];
         RANDOM.nextBytes(IP);
-        System.arraycopy(ip, 0, IP, 2, ip.length);        
+
+        //OPENJPA-2055: account for the fact that 'getAddress'
+        //may return an IPv6 address which is 16 bytes wide.
+        for( int i = 0 ; i < ip.length; ++i ) {
+            IP[2+(i%4)] ^= ip[i];
+        }
+
         type1Initialized = true;
     }