Improve error handling when copying aggregate file
diff --git a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
index 2c0b632..ba669a6 100644
--- a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
+++ b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
@@ -221,7 +221,7 @@
             FileUtils.copyFile(aggregate, rootCopy);
             getLog().info("Aggregate " + extension.substring(1) + " copied to " + rootCopy);
         } catch (IOException ioe) {
-            throw new MojoExecutionException("Could not copy " + aggregate + "to " + rootCopy);
+            throw new MojoExecutionException("Could not copy " + aggregate + " to " + rootCopy, ioe);
         }
     }