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https://issues.apache.org/jira/browse/MJAVADOC-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17016819#comment-17016819
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Chris Lott edited comment on MJAVADOC-617 at 1/16/20 11:35 AM:
---------------------------------------------------------------

Please tell me if this symptom is caused by the same problem. I have a simple 
multi-module project with parent and a single child. Working in the parent, I 
invoke the javadoc:aggregate version 3.1.1 feature like this
{noformat}
    mvn -f . javadoc:aggregate{noformat}
I know this usage is a little silly, maven defaults to the current directory so 
there's no need for the -f option.  But it appears harmless.

Anyhhow, when invoked like this the full maven build runs and javadoc is 
generated in the child module. But in the last step, where I expect the 
aggregation to happen, the plugin shows that it has been invoked:
{noformat}
    maven-javadoc-plugin:3.1.1:aggregate{noformat}
But it shows no other output, does not print an error or warning, and it does 
not copy the child module's javadoc files into parent/target/site/apidocs/

I tried to fall back to version 3.0.0 but that throws a null pointer exception 
:( if there's another version I should try, let me know.

Our workaround is to invoke maven with an absolute path, essentially we do this:
{noformat}
    mvn -f $(pwd) javadoc:aggregate{noformat}
and that works fine.

I can open a new issue if necessary.

Thanks in advance!


was (Author: chrislott):
Please tell me if this symptom is caused by the same problem. I have a simple 
multi-module project with parent and a single child. Working in the parent, I 
invoke the javadoc:aggregate version 3.1.1 feature like this
{noformat}
    mvn -f . javadoc:aggregate{noformat}
I know this usage is a little silly, maven defaults to the current directory so 
there's no need for the -f option.  But it appears harmless.

Anyhhow, when invoked like this the full maven build runs and javadoc is 
generated in the child module. But in the last step, where I expect the 
aggregation to happen, the plugin shows that it has been invoked:
{noformat}
    maven-javadoc-plugin:3.1.1:aggregate{noformat}
But it shows no other output, does not print an error or warning, and it does 
not copy the child module's javadoc files into parent/target/site/apidocs/

I tried to fall back to version 3.0.0 but that throws a null pointer exception 
:( if there's another version I should try, let me know.

I can open a new issue if necessary.

Thanks in advance!

> aggregate-jar does nothing if aggregator modules are referenced using 
> relative pathes and are not in sub folders (
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: MJAVADOC-617
>                 URL: https://issues.apache.org/jira/browse/MJAVADOC-617
>             Project: Maven Javadoc Plugin
>          Issue Type: Bug
>    Affects Versions: 3.1.0, 3.1.1
>            Reporter: Reto Weiss
>            Priority: Major
>         Attachments: fix.zip
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> If an aggregator project has modules that are not located in sub folders and 
> are referenced using relative pathes (e.g. "../project1") then the javadoc 
> aggregate-jar does nothing.
> It does not fail but no javadoc is generated at all.
> This works with 3.0.1.
> See attached Zip File with three projects all, project1 and project2. Project 
> all is the aggregator project. It references project 1 and project 2 with 
> ../project1 and ../project2



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