@Override
 public void visitLiteralExpression(@NotNull PsiLiteralExpression expression) {
   super.visitLiteralExpression(expression);
   final PsiType type = expression.getType();
   if (!ClassUtils.isPrimitiveNumericType(type)) {
     return;
   }
   if (PsiType.CHAR.equals(type)) {
     return;
   }
   if (isSpecialCaseLiteral(expression)) {
     return;
   }
   if (ExpressionUtils.isDeclaredConstant(expression)) {
     return;
   }
   if (ignoreInHashCode) {
     final PsiMethod containingMethod = PsiTreeUtil.getParentOfType(expression, PsiMethod.class);
     if (MethodUtils.isHashCode(containingMethod)) {
       return;
     }
   }
   if (ignoreInTestCode && TestUtils.isInTestCode(expression)) {
     return;
   }
   final PsiElement parent = expression.getParent();
   if (parent instanceof PsiPrefixExpression) {
     registerError(parent);
   } else {
     registerError(expression);
   }
 }
 private void checkExpression(@NotNull PsiExpression expression) {
   if (expression.getParent() instanceof PsiParenthesizedExpression) {
     return;
   }
   final PsiType expressionType = expression.getType();
   if (expressionType == null
       || expressionType.equals(PsiType.VOID)
       || !TypeConversionUtil.isPrimitiveAndNotNull(expressionType)) {
     return;
   }
   final PsiPrimitiveType primitiveType = (PsiPrimitiveType) expressionType;
   final PsiClassType boxedType = primitiveType.getBoxedType(expression);
   if (boxedType == null) {
     return;
   }
   final PsiType expectedType = ExpectedTypeUtils.findExpectedType(expression, false);
   if (expectedType == null || ClassUtils.isPrimitive(expectedType)) {
     return;
   }
   if (!expectedType.isAssignableFrom(boxedType)) {
     // JLS 5.2 Assignment Conversion
     // check if a narrowing primitive conversion is applicable
     if (!(expectedType instanceof PsiClassType) || !PsiUtil.isConstantExpression(expression)) {
       return;
     }
     final PsiClassType classType = (PsiClassType) expectedType;
     final String className = classType.getCanonicalText();
     if (!convertableBoxedClassNames.contains(className)) {
       return;
     }
     if (!PsiType.BYTE.equals(expressionType)
         && !PsiType.CHAR.equals(expressionType)
         && !PsiType.SHORT.equals(expressionType)
         && !PsiType.INT.equals(expressionType)) {
       return;
     }
   }
   if (ignoreAddedToCollection && isAddedToCollection(expression)) {
     return;
   }
   registerError(expression);
 }