testdata for IDEA-130129

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA130129.java

@@ -0,0 +1,72 @@
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+class Test
+{
+  public static class WrapperBase<T, E>
+  {
+    public T unwrap(E edge)
+    {
+      //noinspection unchecked
+      return (T)((DefaultEdge)edge).getSource();
+    }
+  }
+
+  public static class Wrapper<T, E> extends WrapperBase<T, E>
+  {
+  }
+
+  public static class DefaultEdge
+  {
+    private final TaskId taskId;
+
+    public DefaultEdge(TaskId taskId)
+    {
+      this.taskId = taskId;
+    }
+
+    public Object getSource()
+    {
+      return taskId;
+    }
+  }
+
+  public static class TaskId
+  {
+    private final String id;
+
+    public TaskId(String id)
+    {
+      this.id = id;
+    }
+
+    public String getId()
+    {
+      return id;
+    }
+
+    @Override
+    public String toString()
+    {
+      return getId();
+    }
+  }
+
+  public static void main(String[] args)
+  {
+    Wrapper<TaskId, DefaultEdge> w = new Wrapper<>();
+    Set<DefaultEdge> s = new HashSet<>();
+    s.add(new DefaultEdge(new TaskId("1")));
+    s.add(new DefaultEdge(new TaskId("2")));
+    s.add(new DefaultEdge(new TaskId("3")));
+
+    Set<TaskId> processed = s
+      .stream()
+      .map(w::unwrap)
+      .filter(edge -> !edge.getId().equals(""))
+      .collect(Collectors.toSet());
+
+    System.out.println(processed);
+  }
+}