[CASSANDRA-14915] Handle ant-optional dependency

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.0.18, 3.11.4, 4.0-alpha1, 4.0
• Component/s: Build
• Severity: Normal
• Assignee: Marcus Eriksson
• Reporter: Marcus Eriksson

Authors

Marcus Eriksson

Reviewers

Jon Meredith

• Created: 29/Nov/18 06:43
• Updated: 15/May/20 08:05
• Resolved: 20/Dec/18 12:48

Description

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;

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]