diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
index b429fe6d4939..a6028665b4e0 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
@@ -87,7 +87,7 @@ public class CachedBluetoothDeviceManager {
             }
             // Check the member devices for the coordinated set if it exists
             final Set<CachedBluetoothDevice> memberDevices = cachedDevice.getMemberDevice();
-            if (memberDevices != null) {
+            if (!memberDevices.isEmpty()) {
                 for (CachedBluetoothDevice memberDevice : memberDevices) {
                     if (memberDevice.getDevice().equals(device)) {
                         return memberDevice;
@@ -141,7 +141,7 @@ public class CachedBluetoothDeviceManager {
         final Set<CachedBluetoothDevice> memberDevices = device.getMemberDevice();
         // TODO: check the CSIP group size instead of the real member device set size, and adjust
         // the size restriction.
-        if (memberDevices.size() == 1) {
+        if (!memberDevices.isEmpty()) {
             for (CachedBluetoothDevice memberDevice : memberDevices) {
                 if (memberDevice.isConnected()) {
                     return memberDevice.getConnectionSummary();
@@ -166,7 +166,7 @@ public class CachedBluetoothDeviceManager {
             if (!cachedDevice.getDevice().equals(device)) {
                 // Check the member devices of the coordinated set if it exists
                 Set<CachedBluetoothDevice> memberDevices = cachedDevice.getMemberDevice();
-                if (memberDevices != null) {
+                if (!memberDevices.isEmpty()) {
                     for (CachedBluetoothDevice memberDevice : memberDevices) {
                         if (memberDevice.getDevice().equals(device)) {
                             return true;
@@ -231,7 +231,7 @@ public class CachedBluetoothDeviceManager {
         for (int i = mCachedDevices.size() - 1; i >= 0; i--) {
             CachedBluetoothDevice cachedDevice = mCachedDevices.get(i);
             final Set<CachedBluetoothDevice> memberDevices = cachedDevice.getMemberDevice();
-            if (memberDevices != null) {
+            if (!memberDevices.isEmpty()) {
                 for (CachedBluetoothDevice memberDevice : memberDevices) {
                     // Member device exists and it is not bonded
                     if (memberDevice.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
@@ -257,7 +257,7 @@ public class CachedBluetoothDeviceManager {
             CachedBluetoothDevice cachedDevice = mCachedDevices.get(i);
             cachedDevice.setJustDiscovered(false);
             final Set<CachedBluetoothDevice> memberDevices = cachedDevice.getMemberDevice();
-            if (memberDevices != null) {
+            if (!memberDevices.isEmpty()) {
                 for (CachedBluetoothDevice memberDevice : memberDevices) {
                     memberDevice.setJustDiscovered(false);
                 }
@@ -277,7 +277,7 @@ public class CachedBluetoothDeviceManager {
             for (int i = mCachedDevices.size() - 1; i >= 0; i--) {
                 CachedBluetoothDevice cachedDevice = mCachedDevices.get(i);
                 final Set<CachedBluetoothDevice> memberDevices = cachedDevice.getMemberDevice();
-                if (memberDevices != null) {
+                if (!memberDevices.isEmpty()) {
                     for (CachedBluetoothDevice memberDevice : memberDevices) {
                         if (memberDevice.getBondState() != BluetoothDevice.BOND_BONDED) {
                             cachedDevice.removeMemberDevice(memberDevice);
@@ -315,7 +315,7 @@ public class CachedBluetoothDeviceManager {
     public synchronized void onDeviceUnpaired(CachedBluetoothDevice device) {
         CachedBluetoothDevice mainDevice = mCsipDeviceManager.findMainDevice(device);
         final Set<CachedBluetoothDevice> memberDevices = device.getMemberDevice();
-        if (memberDevices != null) {
+        if (!memberDevices.isEmpty()) {
             // Main device is unpaired, to unpair the member device
             for (CachedBluetoothDevice memberDevice : memberDevices) {
                 memberDevice.unpair();
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CsipDeviceManager.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CsipDeviceManager.java
index 1d29966838d3..36d9cf83120a 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CsipDeviceManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CsipDeviceManager.java
@@ -193,7 +193,7 @@ public class CsipDeviceManager {
                     return true;
                 }
                 final Set<CachedBluetoothDevice> memberSet = cachedDevice.getMemberDevice();
-                if (memberSet == null) {
+                if (memberSet.isEmpty()) {
                     break;
                 }
 
@@ -225,7 +225,7 @@ public class CsipDeviceManager {
         for (CachedBluetoothDevice cachedDevice : mCachedDevices) {
             if (isValidGroupId(cachedDevice.getGroupId())) {
                 Set<CachedBluetoothDevice> memberSet = cachedDevice.getMemberDevice();
-                if (memberSet == null) {
+                if (memberSet.isEmpty()) {
                     continue;
                 }