private void checkStatement(PsiStatement statement) {
      if (ControlFlowUtils.statementMayCompleteNormally(statement)) {
        return;
      }
      if (ControlFlowUtils.containsReturn(statement)) {
        return;
      }
      if (ControlFlowUtils.containsSystemExit(statement)) {
        return;
      }
      if (PsiTreeUtil.getParentOfType(statement, PsiSwitchExpression.class) != null && ControlFlowUtils.containsYield(statement)) {
        return;
      }
      if (myIgnoreInThreadTopLevel) {
        PsiElement parent = PsiTreeUtil.findFirstParent(statement, element -> element instanceof PsiMethod ||
                                                                              element instanceof PsiLambdaExpression ||
                                                                              element instanceof PsiAnonymousClass);
        if (parent instanceof PsiMethod method) {
          if (method.hasModifier(JvmModifier.PRIVATE)) {
            PsiClass aClass = method.getContainingClass();
            boolean allUsagesAreInThreadStart = StreamEx.ofTree((PsiElement)aClass, element -> StreamEx.of(element.getChildren()))
              .filter(element -> {
                if (element instanceof PsiMethodCallExpression call) {
                  return call.getMethodExpression().isReferenceTo(method);
                }
                if (element instanceof PsiMethodReferenceExpression methodReference) {
                  return methodReference.isReferenceTo(method);
                }
                return false;
              })
              .select(PsiExpression.class)
              .allMatch(inArgument -> {
                if (inArgument instanceof PsiMethodCallExpression) {
                  return isArgumentInThreadConstructor(inArgument);
                }
                if (inArgument instanceof PsiMethodReferenceExpression) {
                  return isInThreadConstructor(inArgument);
                }
                return false;
              });
            if (allUsagesAreInThreadStart) return;
          }
          else {
            PsiClass maybeAnonymous = tryCast(method.getContainingClass(), PsiAnonymousClass.class);
            if (maybeAnonymous != null && "run".equals(method.getName()) && method.getParameterList().isEmpty()) {
              PsiExpression argument = tryCast(PsiUtil.skipParenthesizedExprUp(maybeAnonymous.getParent()), PsiExpression.class);
              if (isInThreadConstructor(argument)) return;
            }
          }
        }
        else if (parent instanceof PsiLambdaExpression) {
          if (isInThreadConstructor((PsiExpression)parent)) return;
        }
      }
      registerStatementError(statement);
    }
private void checkStatement(PsiStatement statement)