diff --git a/SPL/SPL_c1.php b/SPL/SPL_c1.php
index cea492540..64892bf1a 100644
--- a/SPL/SPL_c1.php
+++ b/SPL/SPL_c1.php
@@ -84,6 +84,7 @@ public function getPerms(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getinode.php
      * @return int|false The inode number for the filesystem object on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getInode(): int|false {}
@@ -93,6 +94,7 @@ public function getInode(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getsize.php
      * @return int|false The filesize in bytes on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getSize(): int|false {}
@@ -102,6 +104,7 @@ public function getSize(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getowner.php
      * @return int|false The owner id in numerical format on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getOwner(): int|false {}
@@ -111,6 +114,7 @@ public function getOwner(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getgroup.php
      * @return int|false The group id in numerical format on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getGroup(): int|false {}
@@ -120,6 +124,7 @@ public function getGroup(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getatime.php
      * @return int|false The time the file was last accessed on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getATime(): int|false {}
@@ -138,6 +143,7 @@ public function getMTime(): int|false {}
      * @link https://php.net/manual/en/splfileinfo.getctime.php
      * @return int|false The last change time, in a Unix timestamp on success, or <b>FALSE</b> on failure.
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getCTime(): int|false {}
@@ -149,6 +155,7 @@ public function getCTime(): int|false {}
      * May be one of file, link,
      * or dir
      * @since 5.1.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getType(): string|false {}
@@ -212,6 +219,7 @@ public function isLink(): bool {}
      * @link https://php.net/manual/en/splfileinfo.getlinktarget.php
      * @return string|false The target of the filesystem link on success, or <b>FALSE</b> on failure.
      * @since 5.2.2
+     * @throws \RuntimeException on error.
      */
     #[TentativeType]
     public function getLinkTarget(): string|false {}
@@ -227,11 +235,12 @@ public function getRealPath(): string|false {}
 
     /**
      * Gets an SplFileInfo object for the file
+     * @template T of SplFileInfo
      * @link https://php.net/manual/en/splfileinfo.getfileinfo.php
-     * @param string $class [optional] <p>
+     * @param class-string<T> $class [optional] <p>
      * Name of an <b>SplFileInfo</b> derived class to use.
      * </p>
-     * @return SplFileInfo An <b>SplFileInfo</b> object created for the file.
+     * @return T An <b>SplFileInfo</b> object created for the file.
      * @since 5.1.2
      */
     #[TentativeType]
@@ -239,11 +248,12 @@ public function getFileInfo(#[LanguageLevelTypeAware(['8.0' => 'string|null'], d
 
     /**
      * Gets an SplFileInfo object for the path
+     * @template T of SplFileInfo
      * @link https://php.net/manual/en/splfileinfo.getpathinfo.php
-     * @param string $class [optional] <p>
+     * @param class-string<T> $class [optional] <p>
      * Name of an <b>SplFileInfo</b> derived class to use.
      * </p>
-     * @return SplFileInfo|null A <b>SplFileInfo</b> object for the parent path of the file on success, or <b>NULL</b> on failure.
+     * @return T|null A <b>SplFileInfo</b> object for the parent path of the file on success, or <b>NULL</b> on failure.
      * @since 5.1.2
      */
     #[TentativeType]
@@ -263,6 +273,7 @@ public function getPathInfo(#[LanguageLevelTypeAware(['8.0' => 'string|null'], d
      * </p>
      * @return SplFileObject The opened file as an <b>SplFileObject</b> object.
      * @since 5.1.2
+     * @throws \RuntimeException If the file cannot be opened (e.g. insufficient access rights).
      */
     #[TentativeType]
     public function openFile(
@@ -273,8 +284,9 @@ public function openFile(
 
     /**
      * Sets the class name used with <b>SplFileInfo::openFile</b>
+     * @template T of SplFileObject
      * @link https://php.net/manual/en/splfileinfo.setfileclass.php
-     * @param string $class [optional] <p>
+     * @param class-string<T> $class [optional] <p>
      * The class name to use when openFile() is called.
      * </p>
      * @return void
@@ -285,8 +297,9 @@ public function setFileClass(#[LanguageLevelTypeAware(['8.0' => 'string'], defau
 
     /**
      * Sets the class used with getFileInfo and getPathInfo
+     * @template T of SplFileInfo
      * @link https://php.net/manual/en/splfileinfo.setinfoclass.php
-     * @param string $class [optional] <p>
+     * @param class-string<T> $class [optional] <p>
      * The class name to use.
      * </p>
      * @return void
@@ -645,6 +658,8 @@ public function __construct(
      * Rewind the file to the first line
      * @link https://php.net/manual/en/splfileobject.rewind.php
      * @return void
+     *
+     * @throws RuntimeException If cannot be rewound
      */
     #[TentativeType]
     public function rewind(): void {}
@@ -669,6 +684,8 @@ public function valid(): bool {}
      * Gets line from file
      * @link https://php.net/manual/en/splfileobject.fgets.php
      * @return string a string containing the next line from the file.
+     *
+     * @throws RuntimeException If the file cannot be read
      */
     #[TentativeType]
     public function fgets(): string {}
@@ -970,6 +987,8 @@ public function getFlags(): int {}
      * The maximum length of a line.
      * </p>
      * @return void
+     *
+     * @throws DomainException When <i>maxLength</i> is less than zero.
      */
     #[TentativeType]
     public function setMaxLineLen(#[LanguageLevelTypeAware(['8.0' => 'int'], default: '')] $maxLength): void {}
@@ -1009,6 +1028,7 @@ public function getChildren() {}
      * The zero-based line number to seek to.
      * </p>
      * @return void
+     * @throws LogicException If the <i>line</i> is negative
      */
     #[TentativeType]
     public function seek(#[LanguageLevelTypeAware(['8.0' => 'int'], default: '')] $line): void {}