On 11/25/2015 06:53 PM, Andrew Hughes wrote:
----- Original Message -----
On 11/18/2015 06:17 PM, Jiri Vanek wrote:
On 11/12/2015 02:24 PM, Sergey Bylokhov wrote:
Hi, Jiri.
This is a valid point, did you file a new CR for this issue?
ping?
Hello!
here it is:
https://jvanek.fedorapeople.org/oracle/jdk8/webrevs/resetInTryFinally/v1/
Patch:
https://jvanek.fedorapeople.org/oracle/jdk8/webrevs/resetInTryFinally/v1/webrev/
and reprodcuer
https://jvanek.fedorapeople.org/oracle/jdk8/webrevs/resetInTryFinally/v1/MarkTryFinallyReproducer.java
Reproducer can be easily turned to jtreg if wonted.
The patch is for 8, but is valid also for 9, except the path to file.
I will adapt it to 9 once you are ok with it (or you may on your own,
depends on you)
J.
On 09.11.15 15:45, Alexander Scherbatiy wrote:
On 11/7/2015 11:38 AM, Jiri Vanek wrote:
Hello!
Looking to imageIO.java (if this is bad thread, please redirect me!)
2d-dev alias should be also the right place to ask image related
questions in AWT.
Thanks,
Alexandr.
when reading images
http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/javax/imageio/ImageIO.java#l543
and ending at:
// Perform mark/reset as a defensive measure
// even though plug-ins are supposed to take
// care of it.
boolean canDecode = false;
if (stream != null) {
stream.mark();
}
canDecode = spi.canDecodeInput(input);
if (stream != null) {
stream.reset();
}
return canDecode;
I'm wondering, why stream.reset(); is not in finaly block:
// Perform mark/reset as a defensive measure
// even though plug-ins are supposed to take
// care of it.
boolean canDecode = false;
if (stream != null) {
stream.mark();
}
try{
canDecode = spi.canDecodeInput(input);
} finally {
if (stream != null) {
stream.reset();
}
}
return canDecode;
Eg png and bmp decoders can are throwing IIOException when header is
corrutped. That pretty definitely sure killer of stream mark stacks.
You yourselves write : //Perform mark/reset as a defensive measure
even though plug-ins are supposed to take care of it.
So if densive, then try/finaly please.
I did not check if this changed in 9 but if not....Please. This is
makig work on custom image plugins, for image formats which just wraps
another bmp/png and are expecting corrupted headers preatty hards.
J.
I've filed https://bugs.openjdk.java.net/browse/JDK-8144071 for this.
Here you go!
https://jvanek.fedorapeople.org/oracle/jdk9/webrevs/resetInTryFinally/v2/
The change looks good to me. I can confirm the reproducer fails
on OpenJDK 6, 7 and 8:
Exception in thread "main" java.lang.RuntimeException: exeption from call to
canDecodeInput in ImageIO corrupted stack in ImageInputStream
at MarkTryFinallyReproducer.main(MarkTryFinallyReproducer.java:317)
I suggest the test case is converted to jtreg and the patch to
done
OpenJDK 9 for a new webrev. Once that is posted, I can commit
done
the change.
TYVM!
I run all jtregs, and looked ok.
J.
