19 files declare their use of RuntimeException

bootstrap.inc in drupal/core/includes/bootstrap.inc
Functions that need to be loaded on every Drupal request.
CheckDefinitionValidityPass.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Compiler/CheckDefinitionValidityPass.php
CheckReferenceValidityPass.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Compiler/CheckReferenceValidityPass.php
Container.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Container.php
ContainerBuilder.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php
ContainerBuilderTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
ParameterBag.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php
ParameterBagTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ParameterBag/ParameterBagTest.php
PhpDumper.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
ResolveDefinitionTemplatesPass.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Compiler/ResolveDefinitionTemplatesPass.php
ResolveInvalidReferencesPass.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Compiler/ResolveInvalidReferencesPass.php
services1.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php
services10.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php
services8.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php
services9.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9.php
services9_compiled.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php
XmlDumper.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Dumper/XmlDumper.php
XmlFileLoader.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
YamlDumper.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Dumper/YamlDumper.php