Reactor Dependency Convergence

Legend:
[Error] At least one dependency has a differing version of the dependency or has SNAPSHOT dependencies.

Statistics:
Number of modules: 4
Number of dependencies (NOD): 48
Number of unique artifacts (NOA): 49
Number of version-conflicting artifacts (NOC): 1
Number of SNAPSHOT artifacts (NOS): 0
Convergence (NOD/NOA): [Error] 97 %
Ready for release (100% convergence and no SNAPSHOTS): [Error] Error
You do not have 100% convergence.

Dependencies used in modules

org.codehaus.plexus:plexus-container-default

[Error]
1.0-alpha-9
  1. org.apache.maven.enforcer:enforcer-rules:jar:3.0.0-M2
    \- org.apache.maven.enforcer:enforcer-api:jar:3.0.0-M2:compile
       \- org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9:compile

  2. org.apache.maven.plugins:maven-enforcer-plugin:maven-plugin:3.0.0-M2
    \- org.apache.maven.enforcer:enforcer-api:jar:3.0.0-M2:compile
       \- org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9:compile

1.0-alpha-9-stable-1
  1. org.apache.maven.enforcer:enforcer-rules:jar:3.0.0-M2
    \- org.apache.maven.plugin-testing:maven-plugin-testing-harness:jar:2.1:test
       \- org.codehaus.plexus:plexus-archiver:jar:2.2:test
          \- (org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9-stable-1:test - omitted for conflict with 1.0-alpha-9)

  2. org.apache.maven.plugins:maven-enforcer-plugin:maven-plugin:3.0.0-M2
    \- org.apache.maven.plugin-testing:maven-plugin-testing-harness:jar:2.1:test
       \- org.codehaus.plexus:plexus-archiver:jar:2.2:test
          \- (org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9-stable-1:test - omitted for conflict with 1.0-alpha-9)