[jira] [Commented] (CURATOR-454) Curator 4.0.0 be used with Zookeeper 3.4.10 due to compile-time issues

["Jordan Zimmerman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CURATOR-454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365514#comment-16365514 ] 

Jordan Zimmerman commented on CURATOR-454:
------------------------------------------

Have you read this? [http://curator.apache.org/zk-compatibility.html] - you need to add the proper exclusions in your dependency management tool.

> Curator 4.0.0 be used with Zookeeper 3.4.10 due to compile-time issues
> ----------------------------------------------------------------------
>
>                 Key: CURATOR-454
>                 URL: https://issues.apache.org/jira/browse/CURATOR-454
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: 4.0.0
>            Reporter: Simon Billingsley
>            Priority: Major
>
> I see compile issues when trying to compile a project with a library that depends on apache curator 4.0.0. 
> We are trying to upgrade to a newer version of Zookeeper (3.4.10) due to security issues in ZK 3.4.9 and have been forced to upgrade to a newer version of curator (from 2.11.1 due to other curator issues) but we keep hitting compile-time issues (see below) which mean that we need to use ZK 3.5.3-beta at compile time even though we will use ZK 3.4.10 at runtime.
> Here is an example of the javac verbose output (via maven):
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/transaction/CuratorOp.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/zookeeper/zookeeper/3.4.10/zookeeper-3.4.10.jar(org/apache/zookeeper/Op.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/zookeeper/zookeeper/3.4.10/zookeeper-3.4.10.jar(org/apache/zookeeper/Op$Create.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/zookeeper/zookeeper/3.4.10/zookeeper-3.4.10.jar(org/apache/zookeeper/Op$Delete.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/zookeeper/zookeeper/3.4.10/zookeeper-3.4.10.jar(org/apache/zookeeper/Op$SetData.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/zookeeper/zookeeper/3.4.10/zookeeper-3.4.10.jar(org/apache/zookeeper/Op$Check.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/transaction/TypeAndPath.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/SyncBuilder.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/RemoveWatchesBuilder.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/RemoveWatchesType.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/RemoveWatchesLocal.class)]]}}
> {{[loading ZipFileIndexFileObject[/Users/sbilling/.m2/repository/org/apache/curator/curator-framework/4.0.0/curator-framework-4.0.0.jar(org/apache/curator/framework/api/BackgroundPathableQuietlyable.class)]]}}{{java.lang.RuntimeException: com.sun.tools.javac.code.Symbol$CompletionFailure: class file for org.apache.zookeeper.Watcher$WatcherType not found}}
> If I look through the source code I see that RemoveWatchesType imports and uses org.apache.zookeeper.Watcher$WatcherType in the 'ofType' method.
> I don't understand how the backwards-compatibility is meant to work. It is also strange that this compile error only appears for a few of the modules in the project, so it must depend on which classes are used by the library and so which classes are loaded into the compile tree.



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