@Nullable
  private Collection<DfaMemoryState> createInitialStates(
      @NotNull PsiElement psiBlock, @NotNull InstructionVisitor visitor) {
    PsiElement container =
        PsiTreeUtil.getParentOfType(psiBlock, PsiClass.class, PsiLambdaExpression.class);
    if (container != null
        && (!(container instanceof PsiClass)
            || PsiUtil.isLocalOrAnonymousClass((PsiClass) container))) {
      final PsiElement parent = container.getParent();
      final PsiCodeBlock block = DfaPsiUtil.getTopmostBlockInSameClass(parent);
      if (block != null) {
        final RunnerResult result = analyzeMethod(block, visitor);
        if (result == RunnerResult.OK) {
          final Collection<DfaMemoryState> closureStates =
              myNestedClosures.get(DfaPsiUtil.getTopmostBlockInSameClass(psiBlock));
          if (!closureStates.isEmpty()) {
            return closureStates;
          }
        }
        return null;
      }
    }

    return Collections.singletonList(createMemoryState());
  }
        @Override
        protected Nullness create(MethodCallInstruction key) {
          final PsiCallExpression callExpression = key.getCallExpression();
          if (callExpression instanceof PsiNewExpression) {
            return Nullness.NOT_NULL;
          }

          return callExpression != null
              ? DfaPsiUtil.getElementNullability(
                  key.getResultType(), callExpression.resolveMethod())
              : null;
        }