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https://issues.apache.org/jira/browse/FLINK-10209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16604280#comment-16604280
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ASF GitHub Bot commented on FLINK-10209:
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zentol opened a new pull request #6663: [FLINK-10209][build] Exclude jdk.tools
dependency from hadoop
URL: https://github.com/apache/flink/pull/6663
## What is the purpose of the change
This PR excludes the `jdk.tools` dependency from hadoop when building with
java 9. This dependency is for the `tools.jar` that was distributed in jdk8 and
below, but no longer present in jdk9+.
## Brief change log
* add `java9` profile that is automatically activated when using java 9
* add `dependencyManagement` entry for `hadoop-common` that excludes the
`jdk.tools` dependency
* restrict `japicmp` plugin to flink artifacts
* This change was necessary since the plugin apparently looks at all
artifacts defined in the pom. The added `hadoop-common` entry in the
`dependencyManagement` has no version attached and thus can't be resolved on
it's own in non-hadoop modules, which always caused the build to fail.
Explicitly filtering for flink modules appears to fix this.
## Verifying this change
Use `mvn help:active-profiles` to verify that the profile is not activated
on java 8 but on java 9.
I ran this commit (along with other prerequisites for java 9) here:
https://travis-ci.org/zentol/flink/builds/423911810
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> Exclude jdk.tools dependency from hadoop when running with java 9
> -----------------------------------------------------------------
>
> Key: FLINK-10209
> URL: https://issues.apache.org/jira/browse/FLINK-10209
> Project: Flink
> Issue Type: Sub-task
> Components: Build System
> Affects Versions: 1.7.0
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.7.0
>
>
> {{hadoop-common}} has a {{jdk.tools}} dependency which cannot be resolved on
> java 9. At least for compiling we have to exclude this dependency.
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