Hi Dave,
just a quick mail as I see you did not get much follow up on this side of
the pond... we simply don't have OSX, sorry!
However it seems you might have tracked down the issue in the turbojpeg
library wrapper itself, which is
(afaik) distributed by the turbojpeg project.
And that's.. interesting, look at the code here:
https://github.com/libjpeg-turbo/libjpeg-turbo/blob/master/java/org/libjpegturbo/turbojpeg/TJLoader.java.in
Wondering if OSX requires a jar file that's different from the other
operating systems?
That would be rather weird from a java standpoint (I would recognize the OS
dynamically instead), and yet...
Cheers
Andrea
On Wed, May 25, 2016 at 3:06 AM, Dave Blasby <[email protected]>
wrote:
> Hi,
>
> I was looking at LibJPEGTurbo on OS X and noticed a possible problem.
>
> Over in TurboJpegUtilities#load()
>
> public static final String LIBNAME = "turbojpeg";
>
> static void load() {
> try {
> System.loadLibrary(LIBNAME); // If this method is called
> more than once with the same library name, the second and subsequent
> calls are ignored.
> if (LOGGER.isLoggable(Level.INFO)) {
> LOGGER.info("TurboJPEG library loaded ("+LIBNAME+")");
> }
> } catch (java.lang.UnsatisfiedLinkError e) {
> String os = System.getProperty("os.name").toLowerCase();
> if (os.indexOf("mac") >= 0) {
> System.load("/usr/lib/libturbojpeg.jnilib");
> } else {
> throw e;
> }
> }
> }
>
> On OS X, the first System.loadLibrary(LIBNAME) fails, but it succeeds
> with the System.load("/usr/lib/libturbojpeg.jnilib");
>
> However, for the TurboImageWorkerTest#writer test, it eventually gets down
> to
> TurboJpegImageWriter line 196;
>
> compressor = new TJCompressor();
>
> However, TJCompressor (line 456) - part of the
> turbojpeg-wrapper-1.2.1.1 jar - has a static initializer;
>
> static {
> TJLoader.load();
> }
>
> final class TJLoader {
> static void load() {
> System.loadLibrary("turbojpeg");
> }
> };
>
> This throws the UnsatisfiedLinkError exception (as above).
>
> Is anyone getting the tests to run on OS X with libjepgturbo installed?
>
>
>
>
> The API documentation for System.loadLibrary(name) says;
> "
> The call <code>System.loadLibrary(name)</code> is effectively
> equivalent to the call
> Runtime.getRuntime().loadLibrary(name) " which (as noted in the
> comments, above) says "If this method is called more than once with
> the same library name, the second and subsequent calls are ignored.".
>
> However, this throws the exception twice;
>
> try {
> System.loadLibrary("turbojpeg");
> } catch (java.lang.UnsatisfiedLinkError e) {
> System.loadLibrary("turbojpeg");
> }
>
> So does this;
>
> try{
> Runtime.getRuntime().loadLibrary("turbojpeg");
> }
> catch (java.lang.UnsatisfiedLinkError e)
> {
> Runtime.getRuntime().loadLibrary("turbojpeg");
> }
>
> $ java -version
> java version "1.8.0_60"
> Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
> Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)
>
>
>
> Is anyone having troubles with LibJPEGTurbo on OS X? I expect it's
> fine on other OSes.
>
> Thanks,
> Dave
>
>
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