[jira] (MCOMPILER-157) Maven Compiler Plugin should add to compileSourceRoots for next plugins to consider as source directory for generated files

["Scott Carey (JIRA)" <ji...@codehaus.org>]

    [ https://jira.codehaus.org/browse/MCOMPILER-157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=363287#comment-363287 ] 

Scott Carey commented on MCOMPILER-157:
---------------------------------------

This _seems_ to be the nexus of a lot of broken behavior related to annotation processing tools.   Any chance it would be reverted?  It simply appears to be the wrong thing to do.   'mvn clean compile' followed by 'mvn compile' breaks in most builds that have annotation processors that generate classes, from what appears to be this as the root cause.

Adding a project's generated-sources/annotations to _downstream_ projects classpath is probably ok, but adding it to itself appears flawed -- that would imply that 'compile' and 'clean compile' are not expected to have the same input to the compile phase!.

MCOMPILER-235, MCOMPILER-236

> Maven Compiler Plugin should add to compileSourceRoots for next plugins to consider as source directory for generated files 
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MCOMPILER-157
>                 URL: https://jira.codehaus.org/browse/MCOMPILER-157
>             Project: Maven Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 2.3.2
>         Environment: Java 6
>            Reporter: Zoran Regvart
>            Assignee: John Casey
>             Fix For: 3.2
>
>         Attachments: failing-test-example.zip, maven-compiler-plugin-add-compileSourceRoots.patch, maven-compiler-plugin-addToSourcePathAsWell.patch, TestCase2.zip, test-case.zip
>
>
> Maven Compiler Plugin by relying on javac by default, on Java 6 platform includes annotation processors in it's processing, these in end could generate sources that are placed by default in target/generated-sources/annotations. The later should be added to compileSourceRoots so that next plugin in execution would consider those sources.
> Please, see the attached test case and consider the attached patch in the next release of maven-compiler-plugin.
> thanks,
> Zoran



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