[MSHARED-1004] Two (2) issues with symbolic links

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: maven-filtering-3.3.0
• Component/s: maven-filtering
• Assignee: Unassigned
• Reporter: Jimisola Laursen
• Created: 10/Dec/21 09:26
• Updated: 07/Jan/22 22:44

Description

Two issues with (relative) symbolic links as resources (use attached file for reference and MWE:

 

user@earhart:~/dev/test/my-app$ tree
.
├── pom.xml
├── src
│   ├── main
│   │   ├── java
│   │   │   └── com
│   │   │       └── mycompany
│   │   │           └── app
│   │   │               └── App.java
│   │   └── resources
│   │       ├── B -> ../../../to_be_symlinked/B
│   │       └── folder -> ../../../to_be_symlinked/folder
│   └── test
│       └── java
│           └── com
│               └── mycompany
│                   └── app
│                       └── AppTest.java
└── to_be_symlinked
    ├── B
    └── folder
        └── A

 

 

 

• Symlinks for directories copies the actual directory (folder/A) whereas symlinks for files copies the symlink (B). Note the difference between file A and B. B is pointing incorrectly since it is relative.

user@earhart:~/dev/test/my-app/target/classes$ ls -l
total 8
lrwxrwxrwx 1 user user   26 dec 10 10:19 B -> ../../../to_be_symlinked/B
drwxrwxr-x 3 user user 4096 dec 10 10:19 com
drwxrwxr-x 2 user user 4096 dec 10 10:19 folder
user@earhart:~/dev/test/my-app/target/classes$ ls -l folder/
total 0
-rw-rw-r-- 1 user user 0 dec 10 10:19 A

• Resources are not overwritten (java.nio.file.FileAlreadyExistsException). To reproduce run "mvn compile" two (2x) times:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources) on project my-app: copying /home/user/dev/test/my-app/src/main/resources/folder/A to /home/user/dev/test/my-app/target/classes/folder/A failed with FileAlreadyExistsException: /home/user/dev/test/my-app/target/classes/folder/A -

 

Issue Links

• relates to: MSHARED-966 Resources are not copied to ${project.build.outputDirectory}
• relates to: MRESOURCES-237 Resource plugin's handling of symbolic links changed in 3.0.x, broke existing behavior
• relates to: MRESOURCES-269 Symlinks cause copying resources to fail