Hi folks,

I think the problem is the trove4j(LGPL2) is on the pom.xml and is used on
the code directly.

It's used by

   - org.apache.wayang.core.optimizer.costs.NestableLoadProfileEstimatorTest
   - org.apache.wayang.core.optimizer.costs.SimpleEstimationContext
   - org.apache.wayang.java.operators.graph.JavaPageRankOperator
   - org.apache.wayang.profiler.log.GeneticOptimizer

Do we remove it or is it ok ?

Best regards,
Bertty

On Thu, Sep 2, 2021 at 8:25 AM Alexander Alten <[email protected]> wrote:

> Hi folks,
>
> According to
>
> https://opensource.stackexchange.com/questions/5664/linking-from-lgpl-2-1-software-to-apache-2-0-library/5756#5756
>
> the linking to LGPL2 libs is not problematic,  the permissive part applies.
> In general the use of other libs, which are not distributed over the
> project, is fine. We just need to make sure that we reference the library
> in the pom.xml file and not distribute them directly.
> BSD license, as well as MIT are compatible.
>
> Chris, and mentors - any comments here before we start to draft the first
> release?
>
> Best,
> --alex
>
> --
> Alexander Alten
> PPMC Apache Wayang
>
>
>
> On Tue, Aug 31, 2021, 23:57 Rodrigo Pardo Meza <[email protected]>
> wrote:
>
> > Hi folks,
> >
> > @bertty contreras <[email protected]> and I have been working on
> > the first release. To this end:
> >
> > (1) We checked the maintenance state of the libraries actively used by
> > Wayang. One of them (HPI) has been deleted and Experiments storage
> > functionalities have been incorporated into the code of Wayang in order
> to
> > extend them.
> >
> > (2) We checked the licenses of the libraries currently used by Wayang.
> Not
> > going further to the licenses of the dependencies of these libraries
> (Only
> > was checked the first level of the dependency tree of Wayang). We found
> the
> > next observations:
> >
> > - trove4j <https://mvnrepository.com/artifact/net.sf.trove4j/trove4j>
> has
> > LGPL 2.1 license
> > - antlr4 <https://mvnrepository.com/artifact/org.antlr/antlr4-runtime>
> has
> > BSD license
> > - paranamer
> > <https://mvnrepository.com/artifact/com.thoughtworks.paranamer/paranamer
> >
> > has BSD licence. Spark has this dependency as well with runtime scope, if
> > Wayang does the same should be ok?
> > - hsqldb <https://mvnrepository.com/artifact/org.hsqldb/hsqldb> has BSD
> > license
> >
> > Someone can help us to find out if our project can use these
> > dependencies; otherwise, does anyone have suggestions of libraries to
> > replace them?
> >
> > Thanks in advance.
> >
> > Best regards
> >
>

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