Bug 252123 - [quick assist] Join variable declaration changes semantics for final fields
Summary: [quick assist] Join variable declaration changes semantics for final fields
Status: ASSIGNED
Alias: None
Product: JDT
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.5   Edit
Hardware: All All
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: JDT-UI-Inbox CLA
QA Contact:
URL:
Whiteboard: stalebug
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-26 20:34 EDT by Benjamin Muskalla CLA
Modified: 2022-07-31 16:59 EDT (History)
2 users (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Benjamin Muskalla CLA 2008-10-26 20:34:51 EDT 
N20081025-2000

package p;

public class J {

	public void foo(Object a) {
		final J j;
		if(a instanceof J) {
			j = (J) a;
		} else {
			j = new J();
		}
	}
}

Invoke "Join variable declaration" changes semantics as it casts a without the instanceof check and introduces another compile warning as the else branch tries to reassign a final var.
Not sure about a nice solution at the moment.
Comment 1 Eclipse Genie CLA 2020-07-29 08:07:48 EDT 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.
Comment 2 Eclipse Genie CLA 2022-07-31 16:59:43 EDT 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.