[ http://jira.codehaus.org/browse/MNG-2537?page=comments#action_73635 ] Joerg Schaible commented on MNG-2537: -------------------------------------
Runtime dependencies are not available compiling the code. This can be used to avoid unwanted deps e.g. have only deps to javax.xml.* but ensure not to have some on com.sun.xml.*. > Dependency scopes > ----------------- > > Key: MNG-2537 > URL: http://jira.codehaus.org/browse/MNG-2537 > Project: Maven 2 > Issue Type: Improvement > Components: Documentation: Introductions > Affects Versions: 2.0.4 > Reporter: Ceki Gulcu > > After reading the article "Introduction to the Dependency Mechanism" [1], > several questions remained unclear which may warrant a revisit by its authors. > The said article mentions the notion of "runtime classpath." While I can see > what compile and test classpaths mean, I fail to understand > what a runtime classpath is, in particular how it differs from the test > classpath. > Moreover, the article defines "provided scope" as follows: > provided - this is much like compile, but indicates you expect the JDK > or a container to provide it. It is only available on the compilation > classpath, and is not transitive. > However, in a small project I've created to test dependency scopes, it seems > that a dependency declared with the "provided" scope *is* available when > compiling the source, compiling the test cases as well as when running them > (the test cases). Thus, it looks like the provided scope is the same as the > compile scope, except that the provided scope is not transitive. > The difference between the runtime and test scopes is also not very clear. > Talking to colleagues and reading the Maven mailing lists, it seems that > different people have different interpretations, which do not translate in > technical terms. > Moreover, the small table which illustrates the effects of scopes on > transitivity is not easy to grok. In particular, the explanation (quoted > below) preceding the table does not define the direction of any of the > dependencies. > <quote> > Each of the scopes affects transitive dependencies in different ways, as is > demonstrated in the table below. If a dependency is set to the scope in the > left column, dependencies with the scope across the top row will result in a > dependency in the main project with the scope listed at the intersection. If > no scope is listed, it means the dependency will be omitted. > </quote> > Thank you in advance for looking into the matter, -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
