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| Summary: | False hint - possible null (ignoring equals test) | ||
|---|---|---|---|
| Product: | java | Reporter: | PavelCibulka |
| Component: | Hints | Assignee: | Svata Dedic <sdedic> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | ||
| Priority: | P3 | ||
| Version: | 8.0 | ||
| Hardware: | All | ||
| OS: | All | ||
| Issue Type: | DEFECT | Exception Reporter: | |
*** This bug has been marked as a duplicate of bug 226083 *** We can assume that if a.equals(b), then b != null - otherwise equals contract would be severely broken for a. |
Hints engine ignore equals method tests. Equals method return false, if argument is null. This method can be considered for possible null hint. Example code: @Nonnull public static String test(@Nullable String value){ if(!"test".equals(value)){ return "something"; } return value; } Netbeans report possible null on "return value;". But this is not possible, because of equals test. It is easy to understand for programmer. I'm not sure, if it would be possible to include this in hints engine.