diff --git a/src/main/java/org/codehaus/mojo/aspectj/AbstractAjcCompiler.java b/src/main/java/org/codehaus/mojo/aspectj/AbstractAjcCompiler.java
index e6084c7..7f3a0ec 100644
--- a/src/main/java/org/codehaus/mojo/aspectj/AbstractAjcCompiler.java
+++ b/src/main/java/org/codehaus/mojo/aspectj/AbstractAjcCompiler.java
@@ -892,8 +892,11 @@ protected boolean hasClassPathClassesChanged(File outDir, boolean isTestCompile)
                 ? project.getTestClasspathElements()
                 : project.getCompileClasspathElements();
         }
-        catch (DependencyResolutionRequiredException e) {
-            throw new MojoExecutionException("Cannot determine compile classpath elements", e);
+        catch (DependencyResolutionRequiredException dependencyResolutionRequiredException) {
+            throw new MojoExecutionException(
+                "Cannot determine " + (isTestCompile ? "test" : "build") + " classpath elements",
+                dependencyResolutionRequiredException
+            );
         }
         if (classpathDirectories != null) {
             Set<String> weaveSources = AjcHelper.getClassFilesAndJars(classpathDirectories.toArray(new String[0]), outDir);