<![CDATA[Bacnet stopped reading]]>Hey hey, I have three devices on a site which stopped reading over Bacnet, all on the same day. I pulled some logs off of one device and this what happened on that day.

ERROR 2018-05-02 20:00:51,787 (com.serotonin.bacnet4j.event.DefaultExceptionListener.receivedException:48) -
com.serotonin.bacnet4j.exception.ReflectionException: java.lang.reflect.InvocationTargetException
at com.serotonin.bacnet4j.type.Encodable.read(Encodable.java:214)
at com.serotonin.bacnet4j.service.unconfirmed.IAmRequest.<init>(IAmRequest.java:108)
at com.serotonin.bacnet4j.service.unconfirmed.UnconfirmedRequestService.createUnconfirmedRequestService(UnconfirmedRequestService.java:74)
at com.serotonin.bacnet4j.apdu.UnconfirmedRequest.parseServiceData(UnconfirmedRequest.java:91)
at com.serotonin.bacnet4j.transport.DefaultTransport.receiveAPDU(DefaultTransport.java:538)
at com.serotonin.bacnet4j.transport.DefaultTransport.receiveImpl(DefaultTransport.java:463)
at com.serotonin.bacnet4j.transport.DefaultTransport.run(DefaultTransport.java:404)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedConstructorAccessor11.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.serotonin.bacnet4j.type.Encodable.read(Encodable.java:202)
... 7 more
Caused by: java.lang.ArrayIndexOutOfBoundsException
ERROR 2018-05-02 20:26:55,329 (com.serotonin.bacnet4j.event.DefaultExceptionListener.receivedException:48) -
com.serotonin.bacnet4j.exception.ReflectionException: java.lang.reflect.InvocationTargetException
at com.serotonin.bacnet4j.type.Encodable.read(Encodable.java:214)
at com.serotonin.bacnet4j.service.unconfirmed.IAmRequest.<init>(IAmRequest.java:108)
at com.serotonin.bacnet4j.service.unconfirmed.UnconfirmedRequestService.createUnconfirmedRequestService(UnconfirmedRequestService.java:74)
at com.serotonin.bacnet4j.apdu.UnconfirmedRequest.parseServiceData(UnconfirmedRequest.java:91)
at com.serotonin.bacnet4j.transport.DefaultTransport.receiveAPDU(DefaultTransport.java:538)
at com.serotonin.bacnet4j.transport.DefaultTransport.receiveImpl(DefaultTransport.java:463)
at com.serotonin.bacnet4j.transport.DefaultTransport.run(DefaultTransport.java:404)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedConstructorAccessor11.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.serotonin.bacnet4j.type.Encodable.read(Encodable.java:202)
... 7 more
Caused by: java.lang.ArrayIndexOutOfBoundsException

Any ideas what that might be? Array index is interesting. The solution is just to restart the data source.

]]>https://forum.mango-os.com/topic/3654/bacnet-stopped-readingRSS for NodeFri, 04 Sep 2026 16:48:49 GMTTue, 17 Jul 2018 19:03:39 GMT60<![CDATA[Reply to Bacnet stopped reading on Wed, 25 Jul 2018 02:15:02 GMT]]>@psysak It looks like you are using an older version of the BACnet4J library, I would suggest using the latest version 4.1.6 and see if you still have the problem. If you do then re-post the new stack trace so I can see how it fits in the latest code. I'm working on the library this week so if you can get the me the info before I move on then I'll make a fix if something is broken.

]]>https://forum.mango-os.com/post/19298https://forum.mango-os.com/post/19298Wed, 25 Jul 2018 02:15:02 GMT<![CDATA[Reply to Bacnet stopped reading on Tue, 17 Jul 2018 21:30:30 GMT]]>@psysak I'll be working in the BACnet4J library later this week or early next. This looks like a potential bug so I'll see if I can fix it up for you while I'm in there.

]]>https://forum.mango-os.com/post/19229https://forum.mango-os.com/post/19229Tue, 17 Jul 2018 21:30:30 GMT<![CDATA[Reply to Bacnet stopped reading on Tue, 17 Jul 2018 20:15:22 GMT]]>Just to add, all of the devices started talking to their Bacnet slaves as soon as the data source was restarted. I would really like to get to a point where this could recover on its own.

]]>https://forum.mango-os.com/post/19228https://forum.mango-os.com/post/19228Tue, 17 Jul 2018 20:15:22 GMT