[BRLTTY] Brlapi crashes when watching parameter

[Peter Lecky]

Hello,

I have my own build of brlapi from latest stable release. Will try to 
use that older, which is on the web.

Thank You

On 11. 3. 2025 20:43, Dave Mielke wrote:
> [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.
>
-- 
Peter Lecký Stopka n. o.