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wrong dead code detection with eclispre 4.4rc1 and jdk1.8 [message #1378617]

Sat, 24 May 2014 10:00

Nicola Zanaga

Messages: 56
Registered: July 2009

Member

This code generates a "dead code" warning:

public class Test4 {
Object o = null;

void test(int i) {
switch( i ) {
case 0:
o = new Object();
break;
case 1:
if( o == null ) {
System.out.println("");
}
}
}
}

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Re: wrong dead code detection with eclispre 4.4rc1 and jdk1.8 [message #1379006 is a reply to message #1378617]

Sat, 24 May 2014 14:03

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Not for me on I20140522-1330

Tom

On 24.05.14 12:01, Nicola Zanaga wrote:
> This code generates a "dead code" warning:
>
> public class Test4 {
> Object o = null;
> void test(int i) { switch( i ) {
> case 0:
> o = new Object();
> break;
> case 1:
> if( o == null ) {
> System.out.println("");
> }
> }
> }
> }
>

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Re: wrong dead code detection with eclispre 4.4rc1 and jdk1.8 [message #1379140 is a reply to message #1379006]

Sat, 24 May 2014 15:21

Nicola Zanaga

Messages: 56
Registered: July 2009

Member

I'have download eclipse 4.4rc2 64bit, jdk 1.8.0_05-b13

I confirm the warning when "compiler compliance level" = 1.8 (the warning disappears when set to 1.7)

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Re: wrong dead code detection with eclispre 4.4rc1 and jdk1.8 [message #1379429 is a reply to message #1379140]

Sat, 24 May 2014 18:18

Stephan Herrmann

Messages: 1853
Registered: July 2009

Senior Member

I cannot reproduce either, using 4.4RC2 indeed, and compliance 1.8.

Have you checked that the example in your post is exact?

Any non-standard options?

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