RFR [9] 8130247: fix some new tidy warnings from jaxws and CORBA

[alexander stepanov]

Hello,

Could you please review the following fix
http://cr.openjdk.java.net/~avstepan/8130247/webrev.00/
for
https://bugs.openjdk.java.net/browse/JDK-8130247

Just a minor correction for the docs. Some "empty trimming <p>" tidy 
warnings fixed; some deprecated "<tt>" tags were replaced with "{@code 
}" as well.

Thanks,
Alexander