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Olivier Cailloux edited comment on ODFTOOLKIT-464 at 8/31/17 10:11 AM: ----------------------------------------------------------------------- An official explanation about SLF4J bindings is [here|https://www.slf4j.org/codes.html#multiple_bindings]: “Embedded components such as libraries or frameworks should not declare a dependency on any SLF4J binding but only depend on slf4j-api. When a library declares a compile-time dependency on a SLF4J binding, it imposes that binding on the end-user, thus negating SLF4J's purpose. When you come across an embedded component declaring a compile-time dependency on any SLF4J binding, please take the time to contact the authors of said component/library and kindly ask them to mend their ways.” was (Author: oliviercailloux): An official explanation about SLF4J bindings is [here|https://www.slf4j.org/codes.html#StaticLoggerBinder] and [here|https://www.slf4j.org/codes.html#multiple_bindings]. > Pom does not follow best practices: missing optional keyword > ------------------------------------------------------------ > > Key: ODFTOOLKIT-464 > URL: https://issues.apache.org/jira/browse/ODFTOOLKIT-464 > Project: ODF Toolkit > Issue Type: Bug > Components: simple api > Reporter: Olivier Cailloux > Priority: Minor > > When depending on Apache ODFToolkit simple-odf in my application > (org.apache.odftoolkit:simple-odf:0.8.2-incubating), I observe that > com.sun:tools is transitively imposed on my project as a dependency (coming > from taglets, see its > [POM|https://repo1.maven.org/maven2/org/apache/odftoolkit/taglets/0.8.11-incubating/taglets-0.8.11-incubating.pom]). > Similarly, org.slf4j:slf4j-log4j12 is passed to my project as a dependency. > I suspect these dependencies are actually not required for projects depending > on simple-odf. > It is possible and simple to ease the life of users of simple-odf by adding > <optional> in the relevant pom files. This would respect Maven best > practices. (See for example > [SO|https://stackoverflow.com/questions/32231814/how-can-i-remove-logback-from-a-librarys-dependency-while-keeping-slf4j].) > Workaround: add exclusion rules for these artifacts (see this example > [POM|https://github.com/oliviercailloux/Test-ODFToolkit-ODS/blob/master/pom.xml]). > (I tried to discuss it > [here|https://lists.apache.org/thread.html/6fa4257e67ede90bac58f5518e1be41e7561a451149cbc9eecdbbf1e@%3Codf-users.incubator.apache.org%3E] > but received no answer.) -- This message was sent by Atlassian JIRA (v6.4.14#64029)