line number of the source code in the thrown exception

[Ahmed Moustafa]

Why does it sometimes show the line number of the source code in the
thrown exception and sometimes does not?
Thanks in advance,
Ahmed

 

[Ahmed Moustafa]

Why does it sometimes show the line number of the source code in the

for native methods it would not have the same mechanism to figure the
line number out from the address. Does that explain it all?

I am asking about exceptions I throw.

 

[Alex Bendig]

Some code showing your throwing and handling of exceptions would be helpful.

Regards,
Alex

 

[Ahmed Moustafa]

Some code showing your throwing and handling of exceptions would be helpful.

Say,

<code>
public void methodX() thorns XException {
try {
Some code that will throw an exception...
} catch (Exception e) {
throw new XException ( "Error: " + e.getMessage() );
}

 

[J]

Why does it sometimes show the line number of the source code in the
thrown exception and sometimes does not?
Thanks in advance,
Ahmed

I think if you have debugging turn OFF, then line numbers will not show up.

J

 

[brougham3]

Why does it sometimes show the line number of the source code in the
thrown exception and sometimes does not?
Thanks in advance,
Ahmed

When you are using javac to compile, what option are you using for -g?

 

[Sudsy]

Why does it sometimes show the line number of the source code in the
thrown exception and sometimes does not?
Thanks in advance,
Ahmed

I've found that the JIT discards the debug informtion (such as line
numbers) and you'll just see (IIRC) "compiled code". I turn the JIT
off during debugging. How you do that depends on your environment.

 

[Ahmed Moustafa]

Why does it sometimes show the line number of the source code in the

When you are using javac to compile, what option are you using for -g?

I am not using -g with javac. I am compiling with WSAD, maybe I need to
check the settings.

 

[Jon A. Cruz]

I've found that the JIT discards the debug informtion (such as line
numbers) and you'll just see (IIRC) "compiled code". I turn the JIT
off during debugging. How you do that depends on your environment.

I've only seen that with older JITs, not newer ones.

 

[Jon Skeet]

I've found that the JIT discards the debug informtion (such as line
numbers) and you'll just see (IIRC) "compiled code".

That hasn't been the case since HotSpot was introduced a *long* time
ago.

 

[Tor Iver Wilhelmsen]

Why does it sometimes show the line number of the source code in the
thrown exception and sometimes does not?

It only does for classes with line number debug info present.