[jira] [Created] (FLINK-12618) jdk.tools exclusion interfering with swift-fs-hadoop build

["Chesnay Schepler (JIRA)" <ji...@apache.org>]

Chesnay Schepler created FLINK-12618:
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             Summary: jdk.tools exclusion interfering with swift-fs-hadoop build
                 Key: FLINK-12618
                 URL: https://issues.apache.org/jira/browse/FLINK-12618
             Project: Flink
          Issue Type: Sub-task
          Components: Build System
    Affects Versions: 1.9.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: 1.9.0


The jdk9 profile in our root pom specificies dependency management entries for some hadoop dependencies to exclude {{jdk.tools}}, as this dependency is no longer part of the jdk on version 9+.

However, since we also set the {{version}} of these dependencies we inadvertently interfere with the dependency tree of some modules.

Any module that relies on (transitively) depends on these, and works independently of our {{hadoop.version}} property (possible use-cases being to only work against a specific hadoop version), will be affected by the management entries and have their dependency tree changed.

The only one I know of right now is {{flink-swift-fs-hadoop}}. The consequence is that this module cannot be compiled on jdk9 if the {{hadoop.version}} property is not set to a compatible version.

Unfortunately I don't have a good solution available at the moment.

We cannot remove the versions from the management entries since the japicmp fails in that case.
There's no other way I know of to completely exclude a dependency.
We could set the {{hadoop.version}} property in the swift-fs module, but it's brittle as hell and who knows which other modules are affected.

So we may end up having to specify the exclusions in every module separately.



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