[NIFI-7135] Fix Java 11 build with com.puppycrawl.tools:checkstyle:jar:8.29 dependency

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0, 1.11.3
• Component/s: Tools and Build
• Assignee: Pierre Villard
• Reporter: Pierre Villard
• Created: 12/Feb/20 03:03
• Updated: 21/Feb/20 20:37
• Resolved: 20/Feb/20 04:39

Description

Since the upgrade of com.puppycrawl.tools:checkstyle to 8.29 (NIFI-7108), the Java 11 build on Travis is failing with:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:3.1.0:check (check-style) on project nifi: Execution check-style of goal org.apache.maven.plugins:maven-checkstyle-plugin:3.1.0:check failed: Plugin org.apache.maven.plugins:maven-checkstyle-plugin:3.1.0 or one of its dependencies could not be resolved: Could not find artifact com.puppycrawl.tools:checkstyle:jar:8.29 in bintray (https://dl.bintray.com/groovy/maven) -> [Help 1]

It looks like plugin dependencies are only resolved against: 

    <pluginRepositories>
        <pluginRepository>
            <id>bintray</id>
            <name>Groovy Bintray</name>
            <url>https://dl.bintray.com/groovy/maven</url>
            <releases>
                <updatePolicy>never</updatePolicy>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

 I suggest to add Maven repository as an additional plugin repository.

Issue Links

• links to: GitHub Pull Request #4050