1 files changed, 23 insertions, 2 deletions
diff --git a/src/main/java/junit/framework/JUnit4TestAdapter.java b/src/main/java/junit/framework/JUnit4TestAdapter.java
index cbb66db..9d32031 100644
--- a/src/main/java/junit/framework/JUnit4TestAdapter.java
+++ b/src/main/java/junit/framework/JUnit4TestAdapter.java
@@ -9,11 +9,23 @@ import org.junit.runner.Request;
 import org.junit.runner.Runner;
 import org.junit.runner.manipulation.Filter;
 import org.junit.runner.manipulation.Filterable;
+import org.junit.runner.manipulation.Orderer;
+import org.junit.runner.manipulation.InvalidOrderingException;
 import org.junit.runner.manipulation.NoTestsRemainException;
-import org.junit.runner.manipulation.Sortable;
+import org.junit.runner.manipulation.Orderable;
 import org.junit.runner.manipulation.Sorter;
 
-public class JUnit4TestAdapter implements Test, Filterable, Sortable, Describable {
+/**
+ * The JUnit4TestAdapter enables running JUnit-4-style tests using a JUnit-3-style test runner.
+ *
+ * <p> To use it, add the following to a test class:
+ * <pre>
+      public static Test suite() {
+        return new JUnit4TestAdapter(<em>YourJUnit4TestClass</em>.class);
+      }
+</pre>
+ */
+public class JUnit4TestAdapter implements Test, Filterable, Orderable, Describable {
     private final Class<?> fNewTestClass;
 
     private final Runner fRunner;
@@ -83,4 +95,13 @@ public class JUnit4TestAdapter implements Test, Filterable, Sortable, Describabl
     public void sort(Sorter sorter) {
         sorter.apply(fRunner);
     }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @since 4.13
+     */
+    public void order(Orderer orderer) throws InvalidOrderingException {
+        orderer.apply(fRunner);
+    }
 }
 \ No newline at end of file