See: Installation and Configuration Guide, Topic 6461 http://documentation-stage.bne.redhat.com/docs/en-US/JBoss_Enterprise_SOA_Platform/5/html-single/Installation_and_Configuration_Guide/index.html#Configure_IBM_Websphere_MQ_to_Use_an_Extended_Transaction_Client The program listing has indented values however in the output of the book the indentation is lost.
Tested this and couldn't replicate it. I'll have to look into it further.
I'm going to close this as I haven't been able to replicate it. If it happens again feel free to raise another bug or reopen this one and I'll take another look.