[MRELEASE-1148] Release Manager pulls in transitive dependencies

This closes #219

Author: michael-o

maven-release-manager/src/main/java/org/apache/maven/shared/release/phase/GenerateReleasePomsPhase.java

@@ -459,7 +459,7 @@ private Scm createReleaseScm(Scm scm, ScmTranslator scmTranslator, ReleaseDescri
 
     private List<Dependency> createReleaseDependencies(ReleaseDescriptor releaseDescriptor, MavenProject project)
             throws ReleaseFailureException {
-        Set<Artifact> artifacts = project.getArtifacts();
+        Set<Artifact> artifacts = project.getDependencyArtifacts();
 
         List<Dependency> releaseDependencies = null;
 
@@ -471,6 +471,12 @@ private List<Dependency> createReleaseDependencies(ReleaseDescriptor releaseDesc
             releaseDependencies = new ArrayList<>();
 
             for (Artifact artifact : orderedArtifacts) {
+                if (artifact.getVersion() == null) {
+                    artifact.setVersion(project.getArtifactMap()
+                            .get(ArtifactUtils.versionlessKey(artifact))
+                            .getVersion());
+                }
+
                 Dependency releaseDependency = new Dependency();
 
                 releaseDependency.setGroupId(artifact.getGroupId());

maven-release-manager/src/test/resources/projects/generate-release-poms/internal-snapshot-dependencies/subproject4/expected-release-pom.xml

@@ -68,12 +68,6 @@ under the License.
     </pluginRepository>
   </pluginRepositories>
   <dependencies>
-    <dependency>
-      <groupId>groupId</groupId>
-      <artifactId>subproject1</artifactId>
-      <version>1.0</version>
-      <scope>compile</scope>
-    </dependency>
     <dependency>
       <groupId>groupId</groupId>
       <artifactId>subproject2</artifactId>

maven-release-manager/src/test/resources/projects/generate-release-poms/internal-snapshot-dependencies/subproject4/subsubproject/expected-release-pom.xml

@@ -64,12 +64,6 @@ under the License.
     </pluginRepository>
   </pluginRepositories>
   <dependencies>
-    <dependency>
-      <groupId>groupId</groupId>
-      <artifactId>subproject1</artifactId>
-      <version>1.0</version>
-      <scope>compile</scope>
-    </dependency>
     <dependency>
       <groupId>groupId</groupId>
       <artifactId>subproject2</artifactId>