DESCRIPTION
This package contains a Java program that allows to reproduce an error that
surfaces when reading pictures with an associated color profile. This error
is reproducible only with a SUSE openjdk, and only when reading pictures
with associated color profiles.
PACKAGE CONTENT
TestImageIO.java
Source code to reproduce the problem. The class has a usage help
testImage_sRGB.jpg
Picture with associated sRGB color profile
testImage_noProfile.jpg
Picture w/o associated color profile. For comparison. This is always
loaded correctly
PROBLEM DESCRIPTION
ImageIO API is not thread safe: The parallel reading of images with
associated color profiles results in failure or incorrect interpretation of
the corresponding color profiles. The images are incorrectly rendered
afterwards.
After the first failure reading an image, are all further readings of
images using ImageIO also incorrect and the jvm must be restarted to read
images correctly again.
This failure has been consistently reproduced using the SUSE package
java-1_8_0-openjdk:
Version : 1.8.0.222-27.35.2
Arch : x86_64
Vendor : SUSE LLC <https://www.suse.com/>
Version : 1.8.0.212-34.1
Arch : x86_64
Vendor : openSUSE
Version : 1.8.0.222-lp151.2.3.1
Arch : x86_64
Vendor : openSUSE
STEPS TO REPRODUCE
# Compile the script
$ javac TestImageIO.java
Note: TestImageIO.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
# Run the script.
# The script reads the file 'testImage_sRGB.jpg' from the current
# directory. I could always reproduce the problem using 50 iterations:
$ java TestImageIO 5 50 false; echo $?
Starting
Loop 0
Callables submitted. Collecting results
Embedded color profile is invalid; ignored
Embedded color profile is invalid; ignored
Embedded color profile is invalid; ignored
( 0, 1) !!!bi.getRGB(0,0) = ff030103. Expected: ff010103
( 0, 4) !!!bi.getRGB(0,0) = ff030103. Expected: ff010103
.
.
.
# output truncated
.
.
.
( 9, 0) !!!bi.getRGB(0,0) = ff023006. Expected: ff010103
success (9): false
1
A non zero exit value signals that the problem has been reproduced.