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| Summary: | [67cat] Internal compiler regression with generics | ||
|---|---|---|---|
| Product: | java | Reporter: | matthies <matthies> |
| Component: | Compiler | Assignee: | Dusan Balek <dbalek> |
| Status: | RESOLVED FIXED | ||
| Severity: | blocker | CC: | mmirilovic |
| Priority: | P1 | Keywords: | REGRESSION |
| Version: | 6.x | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Issue Type: | DEFECT | Exception Reporter: | |
It is a regression in recent 1.7 javac caused by fix of http://bugs.sun.com/view_bug.do?bug_id=6315770. Fixed in jet-main. http://hg.netbeans.org/jet-main/rev/bcd1ea2f60c4 changeset 1b5486023a58 in main/nb-javac details: http://hg.netbeans.org/main/nb-javac?cmd=changeset;node=1b5486023a58 Integrated into 'main-golden', will be available in build *200904300201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-golden/rev/bcd1ea2f60c4 User: Dusan Balek <dbalek@netbeans.org> Log: Issues #159166, #163746, and #163967 fixed. Verified in 6.7. |
Example: import java.util.Comparator; import java.util.List; class Test { static final <T extends Comparable<? super T>> Comparator<List<T>> comparator() { return null; } static <T extends Comparable<? super T>> void f() { Comparator<List<T>> comparator = comparator(); // [*] } } For the statement marked with [*], the editor shows the following error: type parameters of <T>java.util.Comparator<java.util.List<T>> cannot be determined; no unique maximal instance exists for type variable T with upper bounds java.lang.Comparable<? super T> The code though is correct and compiles without errors with JDK 1.6, and no error is shown by the NetBeans 6.5 editor.