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eclipse-paho / paho.mqtt.java

Eclipse Paho Java MQTT client library. Paho is an Eclipse IoT project.
https://eclipse.org/paho
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java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.File.delete()' on a null object reference #936

Open seven001 opened 2 years ago

seven001 commented 2 years ago

Thread Name: 'MQTT Rec: 02fefcfee931446a8471c4303c971453' Back traces starts. java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.File.delete()' on a null object reference at h.b.a.a.a.a0.b.clear(MqttDefaultFilePersistence.java:4) at org.eclipse.paho.client.mqttv3.internal.ClientState.clearState(ClientState.java:2) at org.eclipse.paho.client.mqttv3.internal.ClientState.notifyReceivedAck(ClientState.java:26) at org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run(CommsReceiver.java:22) at java.lang.Thread.run(Thread.java:920) Back traces ends.

How to solve it?

chlbeyond commented 4 weeks ago

Brother, have you solved this problem? Please help me.