Dir.glob and Dir[] on existing file URL raises error #8789
Description
Environment Information
➜ ~ ruby -v
jruby 9.4.12.0 (3.1.4) 2025-02-11 f4ab750 Java HotSpot(TM) 64-Bit Server VM 23.0.1+11-39 on 23.0.1+11-39 +jit [arm64-darwin]
➜ ~ uname -a
Darwin Keiths-MacBook-Air.local 24.4.0 Darwin Kernel Version 24.4.0: Wed Mar 19 21:18:03 PDT 2025; root:xnu-11417.101.15~1/RELEASE_ARM64_T8112 arm64
This is not a web app, I am developing the rika gem.
Expected Behavior
In Ruby 3.4.2 irb:
3.4.2 :001 > Dir.glob 'file:///Users/kbennett/code/rika/x.pdf'
=> []
This returns an empty array in Ruby 3.4.2, and it should do so in JRuby as well.
Actual Behavior
In JRuby irb:
jruby-9.4.12.0 :002 > Dir.glob 'file:///Users/kbennett/code/rika/x.pdf'
java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:55): Range [-7, 31) out of bounds for length 31 (Java::JavaLang::StringIndexOutOfBoundsException)
from java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:52)
from java.base/jdk.internal.util.Preconditions$4.apply(Preconditions.java:213)
from java.base/jdk.internal.util.Preconditions$4.apply(Preconditions.java:210)
...
Here are some more examples, indicating that the error only occurs when it is a file URL and the file exists; and that the error is not related to string length:
jruby-9.4.12.0 :025 > 'file:///Users/kbennett/code/rika/x.pdf'.size
=> 38
jruby-9.4.12.0 :026 > Dir.glob 'a' * 38
=> []
jruby-9.4.12.0 :027 > Dir.glob '/' * 38
=> ["//////////////////////////////////////"]
jruby-9.4.12.0 :028 > Dir.glob ':' * 38
=> []
jruby-9.4.12.0 :029 > Dir.glob ':/' * 19
=> []
jruby-9.4.12.0 :030 > Dir.glob 'file:///'
=> ["file:///"]
jruby-9.4.12.0 :031 > Dir.glob 'file:///Users'
=> ["file:///Users"]
jruby-9.4.12.0 :032 > Dir.glob 'file:///Users/kbennett'
=> ["file:///Users/kbennett"]
jruby-9.4.12.0 :033 > Dir.glob 'file:///Users/kbennett/code'
=> ["file:///Users/kbennett/code"]
jruby-9.4.12.0 :034 > Dir.glob 'file:///Users/kbennett/code/x.pdf' # file does not exist here
=> []
jruby-9.4.12.0 :035 > Dir.glob 'file:///Users/kbennett/code/rika/x.pdf' # file *does* exist here
java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:55): Range [-7, 31) out of bounds for length 31 (Java::JavaLang::StringIndexOutOfBoundsException)
from java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:52)
from java.base/jdk.internal.util.Preconditions$4.apply(Preconditions.java:213)
...
jruby-9.4.12.0 :038 > Dir.glob('file:///Users/a-very-very-very-very-very-very-very-very-very-very-long-dir-name/x.pdf')
=> []
jruby-9.4.12.0 :040 > Dir.glob('http://www.example.com')
=> []
The error occurs with Dir[] as well:
jruby-9.4.12.0 :041 > Dir['file:///Users/kbennett/code/rika/x.pdf'] # file *does* exist here
java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:55): Range [-7, 31) out of bounds for length 31 (Java::JavaLang::StringIndexOutOfBoundsException)
from java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:52)
...
By the way, I am aware that these Dir methods are not intended to be used with URL's. However, I have lists that contain both URL's and filespecs and was hoping to pass all of them to the Dir method and ignore the empty array values returned for the URL's.