Comment.

test/src/main/java/org/jvnet/hudson/test/TestEnvironment.java

@@ -58,7 +58,7 @@ public class TestEnvironment {
 
     /**
      * Current test case being run (works for JUnit 3 or 4).
-     * Warning: {@link Description#getTestClass} is currently broken in some environments. Use {@link Description#getClassName} instead.
+     * Warning: {@link Description#getTestClass} is currently broken in some environments (claimed fixed in JUnit 4.11). Use {@link Description#getClassName} instead.
      */
     public @Nonnull Description description() {
         if (description != null) {