Can we use our host and user/pass in HIVEMQ library?

HiveMQ Client Library
1

Hii,
I have build my application and it is working while I’m using HIVEMQ credentials but when I use my own server address and port it just show up an error:>


W/DefaultChannelPipeline: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
    io.netty.channel.ChannelPipelineException: com.hivemq.client.internal.mqtt.handler.MqttChannelInitializer.handlerAdded() has thrown an exception; removed.
        at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:624)
        at io.netty.channel.DefaultChannelPipeline.access$100(DefaultChannelPipeline.java:46)
        at io.netty.channel.DefaultChannelPipeline$PendingHandlerAddedTask.execute(DefaultChannelPipeline.java:1463)
        at io.netty.channel.DefaultChannelPipeline.callHandlerAddedForAllHandlers(DefaultChannelPipeline.java:1115)
        at io.netty.channel.DefaultChannelPipeline.invokeHandlerAddedIfNeeded(DefaultChannelPipeline.java:650)
        at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:502)
        at io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:417)
        at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:474)
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Thread.java:1012)
     Caused by: java.lang.IllegalArgumentException: Invalid input to toASCII: tcp://139.59.31.99
        at java.net.IDN.toASCII(IDN.java:115)
        at javax.net.ssl.SNIHostName.<init>(SNIHostName.java:99)
        at com.android.org.conscrypt.Platform.getSSLParameters(Platform.java:187)
        at com.android.org.conscrypt.ConscryptEngine.getSSLParameters(ConscryptEngine.java:525)
        at com.android.org.conscrypt.Java8EngineWrapper.getSSLParameters(Java8EngineWrapper.java:62)
        at com.hivemq.client.internal.mqtt.handler.ssl.MqttSslInitializer.initChannel(MqttSslInitializer.java:70)
        at com.hivemq.client.internal.mqtt.handler.MqttChannelInitializer.initSsl(MqttChannelInitializer.java:121)
        at com.hivemq.client.internal.mqtt.handler.MqttChannelInitializer.initProxy(MqttChannelInitializer.java:110)
        at com.hivemq.client.internal.mqtt.handler.MqttChannelInitializer.handlerAdded(MqttChannelInitializer.java:104)
        at io.netty.channel.AbstractChannelHandlerContext.callHandlerAdded(AbstractChannelHandlerContext.java:971)
        at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:609)
        at io.netty.channel.DefaultChannelPipeline.access$100(DefaultChannelPipeline.java:46) 
        at io.netty.channel.DefaultChannelPipeline$PendingHandlerAddedTask.execute(DefaultChannelPipeline.java:1463) 
        at io.netty.channel.DefaultChannelPipeline.callHandlerAddedForAllHandlers(DefaultChannelPipeline.java:1115) 
        at io.netty.channel.DefaultChannelPipeline.invokeHandlerAddedIfNeeded(DefaultChannelPipeline.java:650) 
        at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:502) 
        at io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:417) 
        at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:474) 
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) 
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) 
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) 
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) 
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) 
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) 
        at java.lang.Thread.run(Thread.java:1012) 
     Caused by: The input does not conform to the STD 3 ASCII rules. line:  0. preContext:  . postContext: //139
2

Hello jugendra,

From the exception I can read that the toASCII method has trouble converting the string tcp://139.59.31.99. I tried this locally but it works:

    @Test
    public void name() {
        final String s = IDN.toASCII("tcp://139.59.31.99");
    }

Would you please provide a code snippet how you are using the HiveMQ MQTT client? This would make it easier for us to support you.

- Yannick