Request for integrating #229577 - Some Java EE 7 sample apps do not work

Bug link:
https://netbeans.org/bugzilla/show_bug.cgi?id=229577

Description of the bug:
Some Java EE 7 samples doesn't work out of the box.

Impact assessment:
This impact on all users which will be trying to use some of the new 
Java EE 7 samples included in 7.3.1 release.

Risk assessment:
Well all of the samples were either fixed by simple one-line change or 
they were disabled/removed for a various reasons (some of them were 
obsolete, some were not complete and some were to complicated to fix 
with respect to the release date). Anyway based on the above, there is 
IMHO no risk.

Fixing change-sets:
web-main #ce4a48914542
web-main #52acd4d55edb
web-main #77a4fe11b0c4
web-main #aeace99ac815

Disabling change-sets:
web-main #a616d4360655 + web-main #0f2456471115 (second revision is 
fixing,empty-layer check test)
web-main #d8a50aa9a76e
web-main #848f25a43775
web-main #78019f8f096e + web-main #a9675ce79988 (first changeset was 
done by accident, I will transplant these changes manually in one 
revision instead of using hg graft/hg transplant on both)


The fix was written by mjanicek, reviewed by mfousek and verifed by 
jskrivanek.

Thanks for the review,
Martin J.