PR: MNG-1162

better error handling for invalid pom reference


git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@312809 13f79535-47bb-0310-9956-ffa450edef68

maven-artifact-ant/sample.build.xml

@@ -196,5 +196,11 @@
       <pom refid="maven.project"/>
     </artifact:deploy>
   </target>
+
+  <target name="test-invalid-pom-ref" depends="initTaskDefs">
+    <artifact:dependencies>
+      <pom refid="invalid-ref" />
+    </artifact:dependencies>
+  </target>
 </project>
 

maven-artifact-ant/src/main/java/org/apache/maven/artifact/ant/Pom.java

@@ -86,6 +86,10 @@ public class Pom
         if ( refid != null )
         {
             instance = (Pom) getProject().getReference( refid );
+            if ( instance == null )
+            {
+                throw new BuildException( "Invalid reference: '" + refid + "'" );
+            }
         }
         return instance;
     }