10 files declare their use of UserAbortException

ConfigExportCommand.php in core/lib/Drupal/Core/Config/Command/ConfigExportCommand.php
ConfigExportCommandTest.php in core/tests/Drupal/KernelTests/Core/Config/ConfigExportCommandTest.php
ConfigImportCommand.php in core/lib/Drupal/Core/Config/Command/ConfigImportCommand.php
ConfigImportCommandTest.php in core/tests/Drupal/FunctionalTests/Core/Config/ConfigImportCommandTest.php
ExtensionInstallCommand.php in core/modules/system/src/Command/ExtensionInstallCommand.php
ExtensionInstallCommand.php in core/lib/Drupal/Core/Extension/Command/ExtensionInstallCommand.php
ExtensionInstallCommandTest.php in core/modules/system/tests/src/Kernel/Command/ExtensionInstallCommandTest.php
ExtensionInstallCommandTest.php in core/tests/Drupal/KernelTests/Core/Extension/Command/ExtensionInstallCommandTest.php
ExtensionUninstallCommand.php in core/lib/Drupal/Core/Extension/Command/ExtensionUninstallCommand.php
ExtensionUninstallCommandTest.php in core/tests/Drupal/KernelTests/Core/Extension/Command/ExtensionUninstallCommandTest.php

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