Github user mmiklavc commented on the issue:
https://github.com/apache/incubator-metron/pull/538
fwiw, I ran a local test that seems to work fine. There must a be a subtle
difference somewhere in our build, but I haven't found it yet.
```
{18:45}~/devprojects/temp/mvn-dep-order/metron â find .
.
./m1
./m1/pom.xml
./m2
./m2/pom.xml
./m3
./m3/pom.xml
./m4
./m4/m41
./m4/m41/pom.xml
./m4/m42
./m4/m42/pom.xml
./m4/pom.xml
./pom.xml
{18:45}~/devprojects/temp/mvn-dep-order/metron â find . -name pom.xml
-exec sh -c "echo '\n{}'" \; -exec cat {} \;
./m1/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m1</artifactId>
<name>m1</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>mproj</artifactId>
<version>1.0</version>
</parent>
<dependencies>
<dependency>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m2</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
</project>
./m2/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m2</artifactId>
<name>m2</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>mproj</artifactId>
<version>1.0</version>
</parent>
</project>
./m3/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m3</artifactId>
<name>m3</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>mproj</artifactId>
<version>1.0</version>
</parent>
</project>
./m4/m41/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m41</artifactId>
<name>m41</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m4</artifactId>
<version>1.0</version>
</parent>
<dependencies>
<dependency>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m1</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
</project>
./m4/m42/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m42</artifactId>
<name>m42</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m4</artifactId>
<version>1.0</version>
</parent>
<dependencies>
<dependency>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m41</artifactId>
<version>${project.parent.version}</version>
</dependency>
</dependencies>
</project>
./m4/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>m4</artifactId>
<name>m4</name>
<url>http://maven.apache.org</url>
<packaging>pom</packaging>
<parent>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>mproj</artifactId>
<version>1.0</version>
</parent>
<modules>
<module>m41</module>
<module>m42</module>
</modules>
</project>
./pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelmiklavcic</groupId>
<artifactId>mproj</artifactId>
<packaging>pom</packaging>
<version>1.0</version>
<name>mproj</name>
<url>http://maven.apache.org</url>
<modules>
<module>m1</module>
<module>m2</module>
<module>m3</module>
<module>m4</module>
</modules>
</project>
{18:47}~/devprojects/temp/mvn-dep-order/metron â mvn clean package -T 2C
[INFO] Scanning for projects...
[INFO]
------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] mproj
[INFO] m2
[INFO] m1
[INFO] m3
[INFO] m4
[INFO] m41
[INFO] m42
[INFO]
[INFO] Using the MultiThreadedBuilder implementation with a thread count of
16
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building mproj 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ mproj ---
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m2 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m3 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m4 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m4 ---
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m3 ---
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m2 ---
[INFO] Deleting
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m3/target
[INFO] Deleting
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m2/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ m3 ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ m2 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m3/src/main/resources
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m2/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ m3 ---
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ m2 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources)
@ m2 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources)
@ m3 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m3/src/test/resources
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m2/src/test/resources
[INFO]
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ m2
---
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ m3
---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ m3 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ m2 ---
[INFO] No tests to run.
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ m3 ---
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ m2 ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar:
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m2/target/m2-1.0.jar
[INFO] Building jar:
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m3/target/m3-1.0.jar
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m1 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m1 ---
[INFO] Deleting
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m1/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ m1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m1/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ m1 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources)
@ m1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m1/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ m1
---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ m1 ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ m1 ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar:
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m1/target/m1-1.0.jar
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m41 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m41 ---
[INFO] Deleting
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m41/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ m41
---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m41/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ m41 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources)
@ m41 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m41/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @
m41 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ m41 ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ m41 ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar:
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m41/target/m41-1.0.jar
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building m42 1.0
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ m42 ---
[INFO] Deleting
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m42/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ m42
---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m42/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ m42 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources)
@ m42 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered
resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m42/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @
m42 ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ m42 ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ m42 ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar:
/Users/mmiklavcic/devprojects/temp/mvn-dep-order/metron/m4/m42/target/m42-1.0.jar
[INFO]
------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] mproj .............................................. SUCCESS [
0.119 s]
[INFO] m2 ................................................. SUCCESS [
0.557 s]
[INFO] m1 ................................................. SUCCESS [
0.016 s]
[INFO] m3 ................................................. SUCCESS [
0.556 s]
[INFO] m4 ................................................. SUCCESS [
0.030 s]
[INFO] m41 ................................................ SUCCESS [
0.015 s]
[INFO] m42 ................................................ SUCCESS [
0.015 s]
[INFO]
------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 0.819 s (Wall Clock)
[INFO] Finished at: 2017-04-20T18:48:05-06:00
[INFO] Final Memory: 10M/309M
[INFO]
------------------------------------------------------------------------
```
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