Maven build warnings

[code fx9 <co...@gmail.com>]

Hi,
I got the following warning from maven when building the flume-1.7 branch.
Are these known issues on this branch? Is there are plans to fix them?

[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model
for org.apache.flume:flume-ng-core:jar:1.7.0-SNAPSHOT
[WARNING]
'profiles.profile[hbase-1].dependencyManagement.dependencies.dependency.(groupId:artifactId:type:classifier)'
must be unique: org.apache.hadoop:hadoop-minicluster:jar -> duplicate
declaration of version ${hadoop.version} @
org.apache.flume:flume-parent:1.7.0-SNAPSHOT,
/root/dockerfiles/logging/flume/src/apache-flume/pom.xml, line 255, column
23
[WARNING]
[WARNING] Some problems were encountered while building the effective model
for
org.apache.flume.flume-ng-sinks:flume-ng-elasticsearch-sink:jar:1.7.0-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)'
must be unique: org.apache.httpcomponents:httpclient:jar -> duplicate
declaration of version (?) @ line 86, column 17
[WARNING]
[WARNING] Some problems were encountered while building the effective model
for org.apache.flume:flume-parent:pom:1.7.0-SNAPSHOT
[WARNING]
'profiles.profile[hbase-1].dependencyManagement.dependencies.dependency.(groupId:artifactId:type:classifier)'
must be unique: org.apache.hadoop:hadoop-minicluster:jar -> duplicate
declaration of version ${hadoop.version} @ line 255, column 23
[WARNING]
[WARNING] It is highly recommended to fix these problems because they
threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support
building such malformed projects.
[WARNING]


Thanks.