[jira] [Commented] (CASSANDRA-14915) Handle ant-optional dependency

["Marcus Eriksson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-14915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16702815#comment-16702815 ] 

Marcus Eriksson commented on CASSANDRA-14915:
---------------------------------------------

tested on Debian, Linux Mint and Fedora and with the ant 1.10 tarball, it fails only on Fedora, workaround for now is to {{yum install ant-junit}}, but working on a patch to not fail the build if it is not available.

> Handle ant-optional dependency
> ------------------------------
>
>                 Key: CASSANDRA-14915
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14915
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Marcus Eriksson
>            Assignee: Marcus Eriksson
>            Priority: Major
>
> CASSANDRA-13117 added a JUnit task which dumps threads on unit test timeout, and it depends on a class in {{org.apache.tools.ant.taskdefs.optional}} which seems to not always be present depending on how {{ant}} was installed. It can cause this error when building;
> {code:java}
> Throws: cassandra-trunk/build.xml:1134: taskdef A class needed by class org.krummas.junit.JStackJUnitTask cannot be found:
> org/apache/tools/ant/taskdefs/optional/junit/JUnitTask  using the classloader
> AntClassLoader[/.../cassandra-trunk/lib/jstackjunit-0.0.1.jar]
> {code}



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