cure a deprecation warning (#39)

diff --git a/src/test/java/org/apache/maven/plugins/dependency/fromDependencies/TestCopyDependenciesMojo2.java b/src/test/java/org/apache/maven/plugins/dependency/fromDependencies/TestCopyDependenciesMojo2.java
index e4870bc..bcedc16 100644
--- a/src/test/java/org/apache/maven/plugins/dependency/fromDependencies/TestCopyDependenciesMojo2.java
+++ b/src/test/java/org/apache/maven/plugins/dependency/fromDependencies/TestCopyDependenciesMojo2.java
@@ -287,7 +287,7 @@
 
         File outputDirectory = mojo.outputDirectory;
         ArtifactRepository targetRepository =
-            new MavenArtifactRepository( "local", outputDirectory.toURL().toExternalForm(),
+            new MavenArtifactRepository( "local", outputDirectory.toURI().toURL().toExternalForm(),
                                          new DefaultRepositoryLayout(), new ArtifactRepositoryPolicy(),
                                          new ArtifactRepositoryPolicy() );