IDEA-127352 no warning when @NotNull annotated method returns null

java/java-tests/testData/inspection/dataFlow/fixture/ReturningNullConstant.java

@@ -0,0 +1,11 @@
+import org.jetbrains.annotations.NotNull;
+
+class BrokenAlignment {
+
+  private static final String DEFAULT = null;
+
+  @NotNull
+  public String getDefaultValue() {
+    return <warning descr="Expression 'DEFAULT' might evaluate to null but is returned by the method declared as @NotNull">DEFAULT</warning>;
+  }
+}

java/java-tests/testSrc/com/intellij/codeInspection/DataFlowInspectionTest.java

@@ -111,6 +111,7 @@ public class DataFlowInspectionTest extends LightCodeInsightFixtureTestCase {
   public void testSynchronizingOnNullable() throws Throwable { doTest(); }
   public void testSwitchOnNullable() { doTest(); }
   public void testReturningNullFromVoidMethod() throws Throwable { doTest(); }
+  public void testReturningNullConstant() { doTest(); }
 
   public void testCatchRuntimeException() throws Throwable { doTest(); }
   // IDEA-129331