diff --git a/server/src/main/java/net/laprun/sustainability/power/sensors/linux/rapl/IntelRAPLSensor.java b/server/src/main/java/net/laprun/sustainability/power/sensors/linux/rapl/IntelRAPLSensor.java
index 639ccd0..a7feed0 100644
--- a/server/src/main/java/net/laprun/sustainability/power/sensors/linux/rapl/IntelRAPLSensor.java
+++ b/server/src/main/java/net/laprun/sustainability/power/sensors/linux/rapl/IntelRAPLSensor.java
@@ -67,7 +67,7 @@ private static boolean isReadable(Path file) {
     }
 
     @Override
-    public void start(long frequency) throws Exception {
+    public void start(long frequency) {
         this.frequency = frequency;
 
         // perform an initial measure to prime the data
diff --git a/server/src/main/java/net/laprun/sustainability/power/sensors/test/TestPowerSensor.java b/server/src/main/java/net/laprun/sustainability/power/sensors/test/TestPowerSensor.java
index de95f34..0fe7f5b 100644
--- a/server/src/main/java/net/laprun/sustainability/power/sensors/test/TestPowerSensor.java
+++ b/server/src/main/java/net/laprun/sustainability/power/sensors/test/TestPowerSensor.java
@@ -9,6 +9,7 @@
 import net.laprun.sustainability.power.sensors.PowerSensor;
 import net.laprun.sustainability.power.sensors.RegisteredPID;
 
+@SuppressWarnings("unused")
 public class TestPowerSensor implements PowerSensor {
     public static final String CPU = "cpu";
     public static final SensorMetadata DEFAULT = new SensorMetadata(
@@ -37,7 +38,7 @@ public boolean isStarted() {
     }
 
     @Override
-    public void start(long samplingFrequencyInMillis) throws Exception {
+    public void start(long samplingFrequencyInMillis) {
         if (!started) {
             started = true;
         }