java/8628: catch assignments with no effect

[tromey@redhat.com]

>Number:         8628
>Category:       java
>Synopsis:       catch assignments with no effect
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 18 13:26:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Tom Tromey
>Release:        unknown-1.0
>Organization:
>Environment:

>Description:
The eclipse java compiler will warn about statements
with no effect.  This can be useful to catch bugs like this:

void setField(int newVal) { this.val = val; }

We've had bugs like this in libgcj.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: