chore: dependency-graph: ignore more contexts

follow-up on apache#1392

Author: raboof

.github/workflows/dependency-graph.yml

@@ -38,4 +38,4 @@ jobs:
         uses: sbt/setup-sbt@v1
       - uses: scalacenter/sbt-dependency-submission@v3
         with:
-          configs-ignore: optional test compile-internal
+          configs-ignore: provided optional test TestJdk9 compile-internal pr-validation

actor-tests/src/test/java/org/apache/pekko/dispatch/JavaFutureTests.java

@@ -189,6 +189,13 @@ public Boolean apply(String r) {
     assertEquals("foo", Await.result(r, timeout));
   }
 
+  @Test
+  public void mustAllowCreatingLambdaFilter() {
+      // compile-only test
+      final CountDownLatch latch = new CountDownLatch(1);
+      Filter.filterOf(r -> { latch.countDown(); return r.equals("foo"); });
+  }
+
   // TODO: Improve this test, perhaps with an Actor
   @Test
   public void mustSequenceAFutureList() throws Exception {

actor/src/main/scala/org/apache/pekko/dispatch/Future.scala

@@ -370,6 +370,8 @@ abstract class Recover[+T] extends japi.RecoverBridge[T] {
 object Filter {
   def filterOf[T](f: pekko.japi.Function[T, java.lang.Boolean]): (T => Boolean) =
     new Function1[T, Boolean] { def apply(result: T): Boolean = f(result).booleanValue() }
+  def filterOf[T](f: pekko.japi.function.Function[T, java.lang.Boolean]): (T => Boolean) =
+    new Function1[T, Boolean] { def apply(result: T): Boolean = f(result).booleanValue() }
 }
 
 /**