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https://issues.apache.org/jira/browse/HBASE-4336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13253989#comment-13253989
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Jesse Yates commented on HBASE-4336:
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bq. You can depend on 3rd party jars but not ones made by this maven build – or
is it just test stuff? Could security depend on hbase-common.jar in its tests?
You can depend on other jars that are made in the build (so hbase-security
module could depend on the hbase-common.jar), but not those that are made in
later phases.
Only caveat is you can't have circular dependencies (duh), since that is
impossible to build without something like Spring to do injection.
We could get around this by ensuring that the tests jar gets build in the
compile phase by making sure the tests are compiled also, but that kinda
defeats the purpose of separating out the compilation and test scopes. Don't
recommend that we do that.
> Convert source tree into maven modules
> --------------------------------------
>
> Key: HBASE-4336
> URL: https://issues.apache.org/jira/browse/HBASE-4336
> Project: HBase
> Issue Type: Task
> Components: build
> Reporter: Gary Helmling
> Priority: Critical
> Fix For: 0.96.0
>
>
> When we originally converted the build to maven we had a single "core" module
> defined, but later reverted this to a module-less build for the sake of
> simplicity.
> It now looks like it's time to re-address this, as we have an actual need for
> modules to:
> * provide a trimmed down "client" library that applications can make use of
> * more cleanly support building against different versions of Hadoop, in
> place of some of the reflection machinations currently required
> * incorporate the secure RPC engine that depends on some secure Hadoop classes
> I propose we start simply by refactoring into two initial modules:
> * core - common classes and utilities, and client-side code and interfaces
> * server - master and region server implementations and supporting code
> This would also lay the groundwork for incorporating the HBase security
> features that have been developed. Once the module structure is in place,
> security-related features could then be incorporated into a third module --
> "security" -- after normal review and approval. The security module could
> then depend on secure Hadoop, without modifying the dependencies of the rest
> of the HBase code.
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