We are experiencing a severe Java performance degradation with the
JDK1.3 release, which causes JPEG image handling to be extremely slow.
% java -version
    java version "1.3.0"
    Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
    Java HotSpot(TM) Client VM (build 1.3.0, mixed mode)

Test case is in /net/cores.ebay/cores/62227310

The package includes source code to the application
itself; the application then calls a third-party imaging library from
Accusoft (ImageGear Java [igjava.jar]). We have included an evaluation
copy of the Accusoft library in this package to help you debug the
problem. That library is responsible for making the direct calls to
the Java imaging routines which are slow in the Java 1.3 release.

Using this application with the JDK 1.2.2_06 gives display performance
on the order of only a few seconds, which is acceptable; but using it with
Java 1.3 gives display performance on the order of minutes, which is
prohibitively slow. Our customers are demanding an upgrade to 1.3 to take
advantage of its various new features, but we are prevented from doing so
because of this one performance hit.

Here are commands to compile the code using the C-shell:

    cd igcl_107
    setenv CLASSPATH /tmp/igcl_107:/tmp/igcl_107/igjava.jar
    foreach f ( accusoft/Samples/DisplayImage/*.java )
    echo === $f
    javac $f
    end

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How to run:
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    cd igcl_107
    setenv CLASSPATH /tmp/igcl_107:/tmp/igcl_107/igjava.jar
    java accusoft/Samples/DisplayImage/DisplayImage

    
    Use the File->Open... menu option.
    Navigate to the images/ directory.
    Choose one of the images.
    Wait the minute or so for the image to display. It has taken up to 4-5 minutes to load

In order to use the 1.2.2_06 you will need to use MainFrame.java.12
simply move MainFrame.java in igcl_107/accusoft/Samples/DisplayImage and replace it with the MainFrame.java.12