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There are 25 error identifiers in the staticMethod.* group:

• Static method type assertion is redundant because the type is already narrowed.

• Abstract static method is called directly on an interface or abstract class.

• Called static method is marked as deprecated.

• Static method is called on a deprecated class.

• Static method is called on a deprecated enum.

• Static method is called on a deprecated interface.

• Static method is called on a deprecated trait.

• Static method is called using instance syntax instead of class syntax.

• Static method is called with a variable method name.

• Static method type check will always evaluate to false.

• Called static method is marked as internal.

• Static method is called on an internal class from outside its package.

• Static method is called on an internal enum from outside its package.

• Static method is called on an internal interface from outside its package.

• Static method is called on an internal trait from outside its package.

• Unnecessary (void) cast on a static method that allows discarding its result.

• Static method is called with incorrect letter casing.

• Static method is called on a non-object and non-class-string type.

• Called static method does not exist on the class.

• Private static method is called from outside its declaring class.

• Protected static method is called from outside its class hierarchy.

• Return value of a #[NoDiscard] static method is not used.

• Return value of a pure static method call is not used.

• Return type of a static method call contains an unresolvable type after template substitution.

• Return value of a void static method is used.