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Attempt to invoke interface method 'java.lang.Object java.util.Map.remove(java.lang.Object)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference	at com.ihealth.communication.manager.iHealthDevicesManager.b(Unknown Source)	at com.ihealth.communication.manager.a.onConnectionStateChange(Unknown Source)	at com.ihealth.communication.manager.e.onConnectionStateChange(Unknown Source)	at com.ihealth.communication.base.ble.AndroidBle.onConnectionStateChange(Unknown Source)	at com.ihealth.ble.Ble.commandCheckReconnectDevice(Ble.java:321)	at com.ihealth.ble.Ble.access$8(Ble.java:283)	at com.ihealth.ble.Ble$2.onConnectionStateChange(Ble.java:115)	at android.bluetooth.BluetoothGatt$1.onClientConnectionState(BluetoothGatt.java:181)	at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:70)	at android.os.Binder.execTransact(Binder.java:446)