Bugzilla – Full Text Bug Listing
| Summary: | Strange compile error | ||
|---|---|---|---|
| Product: | [Eclipse Project] JDT | Reporter: | Dirk Baeumer <dirk_baeumer> |
| Component: | Core | Assignee: | JDT-Core-Inbox <jdt-core-inbox> |
| Status: | RESOLVED WORKSFORME | QA Contact: | |
| Severity: | normal | ||
| Priority: | P3 | ||
| Version: | 3.0 | ||
| Target Milestone: | 3.0 M4 | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Whiteboard: | |||
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1. ERROR in d:\eclipse\workspaces\dev3.0\plugins\Crap\src\A.java (at line 13)
class D extends C {
^
No enclosing instance of type A is available due to some intermediate
constructor invocation
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The error is valid though a little cryptic. Jikes would say:
The innermost enclosing instance of type "A" is "this", which is not yet
initialized here.
javac 1.4.2 incorrectly accepts this code.
Problem is that constructor for D is trying to invoke super constructor from C,
which requires an enclosing instance of type A.
However, since D extends C extends A, it appears that 'this' (D) is the best
candidate for such an enclosing instance. However, it is forbidden, since you
are still in a constructor invocation (cannot use 'this').
Correct code should be:
class D extends C {
D() { A.this.super(); }
also see bug 42588
|
I20031008 Don't know if this is a bug or if I don't understand the meaning of the compile error. Compile the following class public class A { public void bar() { class C extends A { public void foo() { } } A a= new A() { public void foo() { } }; class D extends C { }; } }