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Groups > comp.lang.java.programmer > #37539

Re: Java 9 issues

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Responding to Eric Douglas:
> On Tuesday, October 3, 2017 at 3:37:41 PM UTC-4, Arne Vajhøj wrote:
>> On 10/3/2017 2:20 PM, Patrick Roemer wrote:
>> > Responding to Arne Vajhøj:
>> >>>> http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/25066225d892
>> >>>>
>> >>>> the fix seems to have been to change:
>> >>>>
>> >>>>              rs.onRegistration(registry, category);
>> >>>>
>> >>>> to:
>> >>>>
>> >>>>               try {
>> >>>>                   rs.onRegistration(registry, category);
>> >>>>               } catch (Throwable t) {
>> >>>>                   System.err.println("Caught and handled this exception");
>> >>>>                   t.printStackTrace();
>> >>>>               }
>> >>>>
>> >>>> WTF????
>> >>>
>> >>> Exactly.  All I saw in Patrick's link was this 'fix' that prints
>> >>> stack traces.  Can I get a jar that gets rid of the error and the
>> >>> messages?
>> >>
>> >> OpenJDK : edit, compiler, update jar
>> >>
>> >> Oracle JDK : submit a new bug report (you could get in license problems
>> >>                by modifying rt.jar I believe)
>> > 
>> > The actual bug is in the jai-imageio version parsing. The "fix" on the
>> > JDK side is just a generic, rather makeshift and somewhat risky measure
>> > of self-defence against buggy plugins.
>> 
>> Ah.
>> 
>> So the offending code is not in the JDK?
>> 
>> In that case it must be the plugin that need to be fixed.
>> 
>> Arne
> 
> Yeah apparently, I don't know what's going on here.  Is this one of those
> projects that used to be a seaparate jar to include that later got merged
> into the JDK?  I know I had to include a separate jar to process something,
> not sure if it was a specific image format, or maybe it was before it got
> into the JDK (Java 7?).

javax.imageio is part of the JDK, supports I/O for some image formats
and exposes a plugin/SPI mechanism for additional format providers.
jai-imageio is such a 3rd party provider supporting additional image
formats. javax.imageio has added core support for some of those formats
since, other formats still require 3rd party plugins like jai-imageio.

The bug is in jai-imageio and occurs during service registration, i.e.
it will be triggered even if you never use these additional formats -
just having the jar on the path suffices. The "fix" in javax.imageio
just assumes that all exceptions (and errors) occurring during this
phase are harmless and can be "handled" by logging.

Best regards,
Patrick

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Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 08:12 -0700
  Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 11:33 -0400
  Re: Java 9 issues Patrick Roemer <sangamon@netcologne.de> - 2017-10-03 17:43 +0200
    Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 12:07 -0400
      Re: Java 9 issues Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2017-10-03 11:20 -0500
      Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 10:19 -0700
        Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 14:10 -0400
          Re: Java 9 issues Patrick Roemer <sangamon@netcologne.de> - 2017-10-03 20:20 +0200
            Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 15:37 -0400
              Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 12:52 -0700
                Re: Java 9 issues Patrick Roemer <sangamon@netcologne.de> - 2017-10-03 22:27 +0200
                Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 13:38 -0700
                Re: Java 9 issues Patrick Roemer <sangamon@netcologne.de> - 2017-10-03 22:55 +0200
                Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 19:45 -0400
                Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-04 05:18 -0700
                Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-04 20:04 -0400
                Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-05 06:10 -0700
                Re: Java 9 issues Martin Gregorie <martin@address-in-sig.invalid> - 2017-10-05 11:06 +0000
                Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-05 06:09 -0700
                Re: Java 9 issues Martin Gregorie <martin@address-in-sig.invalid> - 2017-10-05 18:23 +0000
          Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 12:03 -0700
  Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 13:34 -0700
    Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 13:49 -0700
      Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 19:39 -0400
    Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-03 14:01 -0700
    Re: Java 9 issues Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-10-03 17:36 -0400
      Re: Java 9 issues Eric Douglas <e.d.programmer@gmail.com> - 2017-10-04 07:51 -0700
        Re: Java 9 issues Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-10-04 11:20 -0400
          Re: Java 9 issues v_borchert@despammed.com (Volker Borchert) - 2017-10-04 20:14 +0000
    Re: Java 9 issues Arne Vajhøj <arne@vajhoej.dk> - 2017-10-03 19:23 -0400

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