testdata for IDEA-134277

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/graphInference/IDEA134277.java

@@ -0,0 +1,18 @@
+import java.util.concurrent.Future;
+
+class TypeInferenceBug
+{
+  public interface Callback<V> {
+    void done(V value);
+  }
+
+  public static <V> void addCallback(Future<V> future, Callback<? super V> callback) {}
+
+  public static <T> Callback<T> createCallback() {
+    return value -> {};
+  }
+
+  public static void bind(Future<?> future) {
+    addCallback(future, createCallback());
+  }
+}