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https://issues.apache.org/jira/browse/MCOMPILER-525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jorge Solórzano updated MCOMPILER-525:
--------------------------------------
    Affects Version/s: 3.10.0
                       3.9.0
                       3.8.1

> Incremental recompile incorrect detection of dependency change
> --------------------------------------------------------------
>
>                 Key: MCOMPILER-525
>                 URL: https://issues.apache.org/jira/browse/MCOMPILER-525
>             Project: Maven Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 3.8.1, 3.9.0, 3.10.0, 3.10.1
>            Reporter: Jorge Solórzano
>            Assignee: Guillaume Nodet
>            Priority: Major
>             Fix For: 3.11.0
>
>
> I have just hit an issue running the ITs of maven-jar-plugin, specifically 
> the *MJAR-70-no-recreation* test on Maven 3.9.0-SNAPSHOT.
> Trying to debug the issue I just found out that the issue is not related to 
> Maven 3.9.0-SNAPSHOT but the real issue seems related to the 
> maven-compiler-plugin used by default on that version.
> maven-compiler-plugins tries to detect changes on incremental compilation 
> running *isDependencyChanged()* which in turn executes *hasNewFile()* but 
> during the same run of maven, if the compile phase is run twice it would not 
> detect correctly that nothing has changed since is just evaluating the file 
> time of the class but the class ends up being newer than the buildStartTime, 
> so this causes the recompilation.
> My proposal is to add a step to set the last modification time if the 
> incremental compilation is enabled and that way it will use the exact same 
> time than the buildStartTime() from maven.



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