fix: log the original display name if no parent has a source (#362)

Author: christianladam

java/src/com/github/bazel_contrib/contrib_rules_jvm/junit5/PatternFilter.java

@@ -46,11 +46,11 @@ public FilterResult apply(TestDescriptor object) {
     // Find the first parent with a source and apply the filter to that.
     // This lets running individual tests in IDEs like IntelliJ work while also
     // running all tests without sources when the '.*' pattern is set.
+    String testDisplayName = object.getDisplayName();
     while (!object.getSource().isPresent()) {
       object = object.getParent().orElse(null);
       if (object == null) {
-        return FilterResult.excluded(
-            "Skipping a test without a source: " + object.getDisplayName());
+        return FilterResult.excluded("Skipping a test without a source: " + testDisplayName);
       }
     }