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<p>Hello,</p>
<p>It seems to be more stable with build from the web, but it seems
that callbacks are not called.</p>
<p>Do i understand it well when i thing that if i register watcher
e.g. <br>
</p>
<div style="background-color:#1e1f22;color:#bcbec4">
<pre
style="font-family:'JetBrains Mono',monospace;font-size:9,0pt;"><span
style="color:#c77dbb;">deviceModel parameter, then my watcher should be called whenewer device model changes? E.g. when some braille device connects via bluetooth, then there is a new device name?
It seems that watcher is called immediately after registration, but not later, when there is connection or disconnection of braille device.
Thanks for answers
</span></pre>
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<div class="moz-cite-prefix">On 11. 3. 2025 21:00, Peter Lecky
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:a70c4bc1-1c93-43e8-ae56-5233642424a1@stopka.sk">Hello,
<br>
<br>
I have my own build of brlapi from latest stable release. Will try
to use that older, which is on the web.
<br>
<br>
Thank You
<br>
<br>
On 11. 3. 2025 20:43, Dave Mielke wrote:
<br>
<blockquote type="cite">[quoted lines by Peter Lecky on 2025/03/11
at 12:46 +0100]
<br>
<br>
<blockquote type="cite">My code:
<br>
<br>
Parameter.WatcherHandle
h=connection.getParameters().deviceModel.watch(new
ParameterWatcher() {
<br>
@Override public void onParameterUpdated(int i,long
l,Object o) {
<br>
U.i("parameterwatch","id:"+i);
<br>
}
<br>
});
<br>
</blockquote>
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.
<br>
<br>
<blockquote type="cite">the JNI crash:
<br>
</blockquote>
[...]
<br>
<blockquote type="cite"> k.stopka.corvus: java_vm_ext.cc:616]
JNI DETECTED ERROR IN APPLICATION:
<br>
input is not valid Modified UTF-8: illegal continuation byte
0x7f
<br>
k.stopka.corvus: java_vm_ext.cc:616] string: 'Ě>x'
<br>
k.stopka.corvus: java_vm_ext.cc:616] input: '0xcc
<0x7f> 0x3e 0x02 0x78'
<br>
k.stopka.corvus: java_vm_ext.cc:616] in call to
NewStringUTF
<br>
k.stopka.corvus: java_vm_ext.cc:616] from long
<br>
org.a11y.brlapi.ConnectionBase.watchParameter(int, long,
boolean,
<br>
org.a11y.brlapi.ParameterWatcher)
<br>
</blockquote>
The UTF-8 is definitely bad, i.e. 0XCC can't be followed by
0X7F.
<br>
<br>
The "from long" makes no sense since the object for the
primitive long type isn't involved.
<br>
<br>
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.
<br>
<br>
</blockquote>
</blockquote>
<div class="moz-signature">-- <br>
Peter Lecký
Stopka n. o.</div>
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