diff --git a/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/virtual/VirtualHardwareManager.java b/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/virtual/VirtualHardwareManager.java index 61135c58a4..fdb271e79a 100644 --- a/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/virtual/VirtualHardwareManager.java +++ b/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/virtual/VirtualHardwareManager.java @@ -199,8 +199,11 @@ public class VirtualHardwareManager { try { sequence = MidiSystem.getSequence(audioSrc); sequencer = MidiSystem.getSequencer(); - sequencer.open(); - sequencer.setSequence(sequence); + if(sequencer != null) { + sequencer.open(); + sequencer.setSequence(sequence); + sequencer.setLoopCount(Clip.LOOP_CONTINUOUSLY); + } } catch (InvalidMidiDataException e) { log.error("AudioReader: Error whilst setting MIDI Audio reader sequence"); } catch (IOException e) { @@ -208,8 +211,6 @@ public class VirtualHardwareManager { } catch (MidiUnavailableException e) { log.error("AudioReader: Error whilst openning MIDI Audio reader sequencer"); } - - sequencer.setLoopCount(Clip.LOOP_CONTINUOUSLY); } }