Getting IllegalArgumentException on trying to use the extension

[debraj-manna]

I am new to gitflow-incremental-builder and this is my first post. Please let me know if this the correct place for raising queries.

I am trying to run the incremental build on a branch, test_incr_build created from the reference branch incr_build.

I have added the below extension in my root pom in incr_build

<build>
 <extensions>
      <extension>
        <groupId>io.github.gitflow-incremental-builder</groupId>
        <artifactId>gitflow-incremental-builder</artifactId>
        <version>4.1.1</version>
      </extension>
    </extensions>
</build>

and the below under properties in my root pom in incr_build

<properties>
   <gib.referenceBranch>refs/heads/incr_build</gib.referenceBranch>
</properties>

But on doing mvn install -DskipTests -T 8 on test_incr_build I am getting the below error

[INFO] gitflow-incremental-builder 4.1.1 starting...
[INFO] Reference commit of local base branch 'HEAD' has id: commit e12dcd5af9803bac29f2d1fb28ff0f911852cf66 1666363048 ------p
[INFO] Reference commit of local reference branch 'refs/heads/incr_build' has id: commit e12dcd5af9803bac29f2d1fb28ff0f911852cf66 1666363048 ------p
[INFO] Using merge base of id: commit e12dcd5af9803bac29f2d1fb28ff0f911852cf66 1666363048 --tr-sp
[ERROR] Failed to execute gitflow-incremental-builder. IllegalArgumentException -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MavenExecutionException

Maven version 3.8.4

debrajmanna@debrajmanna-DX6QR261G3 java % mvn -version
Apache Maven 3.8.4 (9b656c72d54e5bacbed989b64718c159fe39b537)
Maven home: /opt/apache-maven-3.8.4

I can see the below exception on enabling debug logging in maven

[ERROR] Failed to execute gitflow-incremental-builder. IllegalArgumentException -> [Help 1]
org.apache.maven.MavenExecutionException: Failed to execute gitflow-incremental-builder.
    at io.github.gitflowincrementalbuilder.MavenLifecycleParticipant.perform (MavenLifecycleParticipant.java:91)
    at io.github.gitflowincrementalbuilder.MavenLifecycleParticipant.afterProjectsRead (MavenLifecycleParticipant.java:61)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: java.lang.IllegalArgumentException
    at sun.nio.fs.UnixPath.subpath (UnixPath.java:363)
    at sun.nio.fs.UnixPath.subpath (UnixPath.java:43)
    at io.github.gitflowincrementalbuilder.ChangedProjects.stripSrcSubpath (ChangedProjects.java:85)
    at io.github.gitflowincrementalbuilder.ChangedProjects.findProject (ChangedProjects.java:51)
    at io.github.gitflowincrementalbuilder.ChangedProjects.lambda$get$0 (ChangedProjects.java:44)
    at java.util.stream.ReferencePipeline$7$1.accept (ReferencePipeline.java:271)
    at java.util.HashMap$KeySpliterator.forEachRemaining (HashMap.java:1603)
    at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:484)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:474)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential (ReduceOps.java:913)
    at java.util.stream.AbstractPipeline.evaluate (AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect (ReferencePipeline.java:578)
    at io.github.gitflowincrementalbuilder.ChangedProjects.get (ChangedProjects.java:45)
    at io.github.gitflowincrementalbuilder.UnchangedProjectsRemover.doAct (UnchangedProjectsRemover.java:94)
    at io.github.gitflowincrementalbuilder.UnchangedProjectsRemover.act (UnchangedProjectsRemover.java:57)
    at io.github.gitflowincrementalbuilder.MavenLifecycleParticipant.perform (MavenLifecycleParticipant.java:84)
    at io.github.gitflowincrementalbuilder.MavenLifecycleParticipant.afterProjectsRead (MavenLifecycleParticipant.java:61)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MavenExecutionException

Current directory structure

debrajmanna@debrajmanna-DX6QR261G3 java % git rev-parse --show-toplevel
/Users/debrajmanna/code/java/github/spotnana
debrajmanna@debrajmanna-DX6QR261G3 java % realpath pom.xml   
/Users/debrajmanna/code/java/github/spotnana/src/java/pom.xml

Can someone let me know what does this error mean and how can I get around this?

[famod]

This is exactly the right place!

Looks like a bug to me.
Can you try renaming src to something else, e.g. source?

[debraj-manna]

I don't think renaming src to source is an option for us. But I tried just to confirm if it is indeed the issue.

I changed src to source and pushed in both the branches, incr_build and test_incr_build but still got the same error.

[INFO] gitflow-incremental-builder 4.1.1 starting...
[INFO] Reference commit of local base branch 'HEAD' has id: commit a9b7fbd77281739ee5c2de3fa539064154ea6941 1666456527 ------p
[INFO] Reference commit of local reference branch 'refs/heads/incr_build' has id: commit 08ed0629bd9fd9fe52b15a6f0e424aa57bbc7410 1666456588 ------p
[INFO] Using merge base of id: commit b2709c6f393b1cace85e8b389aa88fd8a0821135 1666454260 --tr-sp
[ERROR] Failed to execute gitflow-incremental-builder. IllegalArgumentException -> [Help 1]

Updated path

debrajmanna@debrajmanna-DX6QR261G3 java % git rev-parse --show-toplevel
/Users/debrajmanna/Documents/fresh_code/spotnana
debrajmanna@debrajmanna-DX6QR261G3 java % realpath pom.xml   
/Users/debrajmanna/Documents/fresh_code/spotnana/source/java/pom.xml
debrajmanna@debrajmanna-DX6QR261G3 java % 

[debraj-manna]

Ignore my last message. You are right renaming src to source make it work properly.

But anyways renaming src is not an option for us at the moment.

[debraj-manna]

I created an issue from this discussion.