Bugzilla – Full Text Bug Listing
| Summary: | [1.5][compiler] Wrong warning message issued in generic nesting type casting | ||
|---|---|---|---|
| Product: | [Eclipse Project] JDT | Reporter: | Rice Yeh <riceyeh> |
| Component: | Core | Assignee: | Philipe Mulet <philippe_mulet> |
| Status: | VERIFIED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | P3 | CC: | artur.brinkmann, bmiller |
| Version: | 3.1 | ||
| Target Milestone: | 3.2 M3 | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Whiteboard: | |||
Will only warn if the cast type exactly matches a supertype, and not only on compatible matches (using raw or wildcard types). Added GenericTypeTest#test832 *** Bug 100809 has been marked as a duplicate of this bug. *** Verified for 3.2 M3 using build I20051025-0800+JDT/Core v_618a |
Take the following code as example, an wrong warning message "Unnecessary cast from C1<?>.C11[] to C1<T>.C11[]". But the casting is really needed. Without it, another "type mismatch" error will happen. example: class C1<T> { class C11 { } class C12 { T t; C1<T>.C11[] m() { C1<T>.C11[] ts = (C1<T>.C11[]) new C1<?>.C11[5]; return ts; } } }