P25 AMBTC Status Query - Null Data Block Error

[DSheirer]

java.lang.NullPointerException: Cannot invoke "io.github.dsheirer.module.decode.p25.phase1.message.pdu.block.UnconfirmedDataBlock.getMessage()" because the return value of "io.github.dsheirer.module.decode.p25.phase1.message.pdu.ambtc.osp.AMBTCStatusQuery.getDataBlock(int)" is null
at io.github.dsheirer.module.decode.p25.phase1.message.pdu.ambtc.osp.AMBTCStatusQuery.getSourceAddress(AMBTCStatusQuery.java:90)
at io.github.dsheirer.module.decode.p25.phase1.message.pdu.ambtc.osp.AMBTCStatusQuery.getIdentifiers(AMBTCStatusQuery.java:108)
at io.github.dsheirer.alias.action.AliasActionManager.receive(AliasActionManager.java:58)
at io.github.dsheirer.alias.action.AliasActionManager.receive(AliasActionManager.java:43)
at io.github.dsheirer.sample.Broadcaster.broadcast(Broadcaster.java:128)
at io.github.dsheirer.sample.Broadcaster.receive(Broadcaster.java:52)
at io.github.dsheirer.module.decode.Decoder$MessageDistributor.receive(Decoder.java:115)
at io.github.dsheirer.module.decode.Decoder$MessageDistributor.receive(Decoder.java:108)
at io.github.dsheirer.module.decode.p25.phase1.P25P1MessageProcessor.receive(P25P1MessageProcessor.java:128)
at io.github.dsheirer.module.decode.p25.phase1.P25P1MessageProcessor.receive(P25P1MessageProcessor.java:43)
at io.github.dsheirer.module.decode.p25.phase1.P25P1MessageFramer.dispatchMessage(P25P1MessageFramer.java:252)
at io.github.dsheirer.module.decode.p25.phase1.P25P1MessageFramer.receive(P25P1MessageFramer.java:203)
at io.github.dsheirer.module.decode.p25.phase1.P25P1MessageFramer.receive(P25P1MessageFramer.java:69)
at io.github.dsheirer.sample.Broadcaster.broadcast(Broadcaster.java:128)
at io.github.dsheirer.sample.Broadcaster.receive(Broadcaster.java:52)
at io.github.dsheirer.dsp.psk.PSKDemodulator.broadcast(PSKDemodulator.java:87)
at io.github.dsheirer.dsp.psk.DQPSKGardnerDemodulator.calculateSymbol(DQPSKGardnerDemodulator.java:88)
at io.github.dsheirer.dsp.psk.PSKDemodulator.receive(PSKDemodulator.java:146)
at io.github.dsheirer.dsp.psk.PSKDemodulator.receive(PSKDemodulator.java:121)
at io.github.dsheirer.module.decode.p25.phase1.P25P1DecoderLSM.receive(P25P1DecoderLSM.java:130)
at io.github.dsheirer.module.decode.p25.phase1.P25P1DecoderLSM.receive(P25P1DecoderLSM.java:39)
at io.github.dsheirer.sample.Broadcaster.broadcast(Broadcaster.java:128)
at io.github.dsheirer.sample.Broadcaster.receive(Broadcaster.java:52)
at io.github.dsheirer.dsp.filter.channelizer.PolyphaseChannelSource.receive(PolyphaseChannelSource.java:145)
at io.github.dsheirer.dsp.filter.channelizer.PolyphaseChannelSource.receive(PolyphaseChannelSource.java:40)
at io.github.dsheirer.dsp.filter.channelizer.output.OneChannelOutputProcessor.process(OneChannelOutputProcessor.java:113)
at io.github.dsheirer.dsp.filter.channelizer.output.ChannelOutputProcessor.lambda$new$0(ChannelOutputProcessor.java:56)
at io.github.dsheirer.util.Dispatcher.process(Dispatcher.java:184)
at io.github.dsheirer.util.Dispatcher$ProcessorWithHeartbeat.run(Dispatcher.java:226)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)