Fix for issue mojohaus#323: using version range if currentVersion is …

…not available

src/main/java/org/codehaus/mojo/versions/DependencyUpdatesXmlRenderer.java

@@ -187,8 +187,9 @@ else if ( details.getOldestUpdate( UpdateScope.MAJOR ) != null )
     public static String getVersionsBlocks( ArtifactVersions versions )
     {
         StringBuilder sBuilder = new StringBuilder();
-        sBuilder.append( TAB ).append( TAB ).append( TAB ).append( wrapElement( versions.getCurrentVersion().toString(),
-                                                                                CURRENT_VERSION ) ).append( NL );
+        sBuilder.append( TAB ).append( TAB ).append( TAB ).append( wrapElement( versions.isCurrentVersionDefined()
+                        ? versions.getCurrentVersion().toString() : versions.getArtifact().getVersionRange().toString(),
+                CURRENT_VERSION ) ).append( NL );
         ArtifactVersion nextVersion = versions.getOldestUpdate( UpdateScope.ANY );
         if ( nextVersion != null )
         {

src/test/java/org/codehaus/mojo/versions/DependencyUpdatesXmlRendererTest.java

@@ -0,0 +1,66 @@
+package org.codehaus.mojo.versions;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.artifact.DefaultArtifact;
+import org.apache.maven.artifact.versioning.ArtifactVersion;
+import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
+import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
+import org.apache.maven.artifact.versioning.VersionRange;
+import org.codehaus.mojo.versions.api.ArtifactVersions;
+import org.hamcrest.core.Is;
+import org.junit.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.core.IsNull.nullValue;
+
+/**
+ * Basic tests for {@linkplain DependencyUpdatesXmlRenderer}.
+ *
+ * @author Andrzej Jarmoniuk
+ */
+public class DependencyUpdatesXmlRendererTest
+{
+    @Test
+    public void testGetVersionsBlocks() throws InvalidVersionSpecificationException
+    {
+        List<ArtifactVersion> versions =
+                versionsOf( "1.0.0.1", "1.0.0.2", "2.121.2.1", "2.100.0.1", "3.1.0.1", "1.1.1" );
+        final Artifact artifact =
+                new DefaultArtifact( "group", "artifact", VersionRange.createFromVersionSpec( "[1.0,3.0]" ), "foo",
+                        "bar", "jar", null );
+        ArtifactVersions artifactVersions = new ArtifactVersions( artifact, versions, null );
+        assertThat( artifactVersions.getCurrentVersion(), nullValue() );
+        assertThat( artifactVersions.isCurrentVersionDefined(), Is.is( false ) );
+        String versionsBlocks = DependencyUpdatesXmlRenderer.getVersionsBlocks( artifactVersions );
+        assertThat( versionsBlocks, containsString( "<currentVersion>[1.0,3.0]</currentVersion>" ) );
+    }
+
+    private static List<ArtifactVersion> versionsOf( String... versions )
+    {
+        return Arrays.stream( versions ).map( DefaultArtifactVersion::new ).collect( Collectors.toList() );
+    }
+}