7 files declare their use of MappingException in Plug 7

AbstractLoader.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/AbstractLoader.php

AnnotationLoader.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/AnnotationLoader.php

FileLoader.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/FileLoader.php

LoaderChain.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/LoaderChain.php

StaticMethodLoader.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/StaticMethodLoader.php

XmlFileLoader.php in lib/Symfony/validator/Symfony/Component/Validator/Mapping/Loader/XmlFileLoader.php

XmlFileLoaderTest.php in lib/Symfony/validator/Symfony/Component/Validator/Tests/Mapping/Loader/XmlFileLoaderTest.php