jun aoki created OOZIE-1212:
-------------------------------
Summary: Deal with "[WARNING] JAR will be empty - no content was
marked for inclusion!" in build log.
Key: OOZIE-1212
URL: https://issues.apache.org/jira/browse/OOZIE-1212
Project: Oozie
Issue Type: Task
Affects Versions: trunk
Reporter: jun aoki
Priority: Minor
Fix For: trunk
| [WARNING] JAR will be empty - no content was marked for inclusion!
can be found in the precommit build log.
e.g. 13 of them in
https://builds.apache.org/job/oozie-trunk-precommit-build/320/consoleText
# Building Apache Oozie Hadoop 1.1.1.oozie-3.4.0-SNAPSHOT
1.1.1.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hadoop Distcp 1.1.1.oozie-3.4.0-SNAPSHOT
1.1.1.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hadoop 1.1.1.oozie-3.4.0-SNAPSHOT Test
1.1.1.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hadoop 2.0.2-alpha.oozie-3.4.0-SNAPSHOT
2.0.2-alpha.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hadoop 2.0.2-alpha.oozie-3.4.0-SNAPSHOT Test
2.0.2-alpha.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hadoop Distcp 2.0.2-alpha.oozie-3.4.0-SNAPSHOT
2.0.2-alpha.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Hbase 0.94.2.oozie-3.4.0-SNAPSHOT
0.94.2.oozie-3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Pig 3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Streaming 3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Distcp 3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Hive 3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Sqoop 3.4.0-SNAPSHOT
# Building Apache Oozie Share Lib Oozie 3.4.0-SNAPSHOT
I found that the pom.xml files have <package>jar</package>
{code}
<groupId>org.apache.oozie</groupId>
<artifactId>oozie-hadoop</artifactId>
<version>2.0.2-alpha.oozie-3.4.0-SNAPSHOT</version>
<description>Apache Oozie Hadoop ${project.version}</description>
<name>Apache Oozie Hadoop ${project.version}</name>
<packaging>jar</packaging>
{code}
but shows the WARNING because they don't have src/main
Here is one solution option.(but questionable)
{code:title=minitest/pom.xml}
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<id>default-jar</id>
<!-- minitest does not necessary have .java files under
src/main
and this causes [WARNING] JAR will be empty upon
mvn package -->
<phase>never</phase>
</execution>
</executions>
</plugin>
{code}
Question is, this completely skips generating jar file, which is not OK for
most of the projects.
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