parse errors: "URI has an authority component"

[jimfinnis]

Bug Description

CLI on Windows 11, throws a lot of "URI has an authority component" errors on parsing:

The command line and errors are given below. The Z drive is a CIFS mount from a Linux machine; all submissions are packaged in a subdirectory "subs". I've tried the full path (as in the transcript below) and the relative path "subs" but both have the same problem. The --enable-native-access option was added as an attempted fix; it makes no difference. User names have been redacted.

Z:\cs211marking>c:\users\jimfi.jdks\openjdk-25.0.1\bin\java --enable-native-access=ALL-UNNAMED -jar ./jplag-6.2.0-jar-with-dependencies.jar -new z:\cs211marking\subs -l java -x jplag_exclude
Loading Submissions 100% [=========================] 58/58 (0:00:01 / 0:00:00)
Parsing Submissions 100% [=========================] 58/58 (0:00:01 / 0:00:00)
2025-11-30-11:39:58_434 [WARN] Submission - Failed to parse submission :
failed to parse ''URI has an authority component
2025-11-30-11:39:58_456 [WARN] Submission - Failed to parse submission :
failed to parse ''URI has an authority component

(and so on)...

JPlag Version

6.2.0

Operating System

Windows 11

Java Version

OpenJDK 25

[TwoOfTwelve]

I tried to understand what is happening here and while I cannot replicate your situation it seems that java does not allow compiling files fetched from a server. I assume the way windows handles mounting is just telling the programs to fetch files from a specific source at some point.

If you have some time, can you please verify this by trying to compile one of the submissions with javac in your mounted drive? If that throws the same error, we sadly cannot support it.

To fix this you could either copy all the files to your machine or run JPlag on your linux machine. You can run it there with --mode RUN, which only creates the result file. You should then be able to view the file on your windows machine with jplag --mode VIEW <resultfile>

I hope this helps