--- a/javaextensions/datagram/datagram/src/nativedatagramconnection.cpp	Thu Aug 19 09:48:13 2010 +0300
+++ b/javaextensions/datagram/datagram/src/nativedatagramconnection.cpp	Tue Aug 31 15:09:22 2010 +0300
@@ -133,6 +133,7 @@
         writeBuffer = new char[requiredNativeBufferLength + 1];
     }
     /* Copy the data to be written from java buffer to the native buffer.  */
+    if (writeBuffer != NULL)
     JNIArrayUtils::CopyToNative(aJni, aJavaBuffer, aOffset,
                                 requiredNativeBufferLength, writeBuffer);