testdata for IDEA-139875

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/overloadResolution/IDEA139875.java

@@ -0,0 +1,47 @@
+import java.util.List;
+
+class GenericsError {
+  private static class ListHolder<T> {
+    private List<T> <warning descr="Private field 'list' is never assigned">list</warning>;
+
+    private void <warning descr="Private method 'forEach(GenericsError.Looper<? super T>)' is never used">forEach</warning>(final Looper<? super T> looper) {
+      for (final T item : list) {
+        looper.loopItem(item);
+      }
+    }
+
+
+    private void forEach(final DeletingLooper<? super T> looper) {
+      for (final T item : list) {
+        looper.loopItem(item);
+      }
+    }
+  }
+
+  private interface Looper<T> {
+    void loopItem(final T a);
+  }
+
+  private interface DeletingLooper<T> extends Looper<T> {
+  }
+
+  private static class MyDeletingLooper implements DeletingLooper<B> {
+    @Override
+    public void loopItem(final B a) {
+    }
+  }
+
+  private class A {
+  }
+
+  private class B extends A {
+  }
+
+
+  public static void main(final String[] args) {
+    final ListHolder<? extends B> aListHolder = new ListHolder<B>();
+    final DeletingLooper<? super B> bLooper = new MyDeletingLooper();
+
+    aListHolder.forEach(bLooper);
+  }
+}