a specific bundle file should not have either a :

duplicate key/value that is the same since costs more for
duplicate translation

or

same key with 2 different values

items below were found during scan of bundle files,
but might not  know which module or which bundle in it
if its not mentioned below but
am assuming it can found in the source code

 - please review all bundles to make sure no others like
these:
LBL_Add=Add >
LBL_Add=&Add >

LBL_AddAll=Add All >>
LBL_AddAll=Add A&ll >>

LBL_AvailableEntities=Available Entity Classes\:
LBL_AvailableEntities=Available &Entity Classes\:

LBL_EntityClasses=Entity Classes
LBL_EntityClasses=Entity Classes

LBL_Remove=< Remove
LBL_Remove=< &Remove

LBL_RemoveAll=<< RemoveAll
LBL_RemoveAll=<< Remo&ve All

LBL_SelectedEntities=Selected Entity Classes\:
LBL_SelectedEntities=&Selected Entity Classes\:

from
org-netbeans-modules-websvc-rest