[quoted lines by Peter Lecky on 2025/03/11 at 12:46 +0100]

>My code:
>
>Parameter.WatcherHandle h=connection.getParameters().deviceModel.watch(new 
>ParameterWatcher() {
>    @Override public void onParameterUpdated(int i,long l,Object o) {
>       U.i("parameterwatch","id:"+i);
>    }
>});

I just executed this code successfully, i.e. I can't reproduce the problem. I 
also had a quick look at the underlying code and it looks right.

>the JNI crash:
[...]
> k.stopka.corvus: java_vm_ext.cc:616] JNI DETECTED ERROR IN APPLICATION:
>input is not valid Modified UTF-8: illegal continuation byte 0x7f
> k.stopka.corvus: java_vm_ext.cc:616]     string: 'Ě>x'
> k.stopka.corvus: java_vm_ext.cc:616]     input: '0xcc <0x7f> 0x3e 0x02 0x78'
> k.stopka.corvus: java_vm_ext.cc:616]     in call to NewStringUTF
> k.stopka.corvus: java_vm_ext.cc:616]     from long
>org.a11y.brlapi.ConnectionBase.watchParameter(int, long, boolean,
>org.a11y.brlapi.ParameterWatcher)

The UTF-8 is definitely bad, i.e. 0XCC can't be followed by 0X7F.

The "from long" makes no sense since the object for the primitive long type 
isn't involved.

I'm wondering, therefore, if there might be a serious mismatch between the jar 
and the shared object for the JNI that you're using.

-- 
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Dave Mielke            | 2213 Fox Crescent | WebHome: http://Mielke.cc/
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