diff --git a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryCounter.java b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryCounter.java
index 18299258fda2..a9f9f331a89c 100644
--- a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryCounter.java
+++ b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryCounter.java
@@ -16,6 +16,7 @@
 import io.opentelemetry.api.metrics.DoubleCounter;
 import io.opentelemetry.api.metrics.Meter;
 import java.util.Collections;
+import javax.annotation.Nullable;
 
 @SuppressWarnings("HashCodeToString")
 final class OpenTelemetryCounter implements Counter, RemovableMeter {
@@ -71,7 +72,7 @@ public void onRemove() {
 
   @SuppressWarnings("EqualsWhichDoesntCheckParameterClass")
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(@Nullable Object o) {
     return MeterEquivalence.equals(this, o);
   }
 
diff --git a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionCounter.java b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionCounter.java
index 55965c424fd6..ad8046296c1b 100644
--- a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionCounter.java
+++ b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionCounter.java
@@ -13,6 +13,7 @@
 import io.opentelemetry.api.common.Attributes;
 import java.util.Collections;
 import java.util.function.ToDoubleFunction;
+import javax.annotation.Nullable;
 
 @SuppressWarnings("HashCodeToString")
 final class OpenTelemetryFunctionCounter<T> implements FunctionCounter, RemovableMeter {
@@ -57,7 +58,7 @@ public void onRemove() {
 
   @SuppressWarnings("EqualsWhichDoesntCheckParameterClass")
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(@Nullable Object o) {
     return MeterEquivalence.equals(this, o);
   }
 
diff --git a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionTimer.java b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionTimer.java
index a157f057a95e..64493e5882ba 100644
--- a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionTimer.java
+++ b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryFunctionTimer.java
@@ -18,6 +18,7 @@
 import java.util.concurrent.TimeUnit;
 import java.util.function.ToDoubleFunction;
 import java.util.function.ToLongFunction;
+import javax.annotation.Nullable;
 
 @SuppressWarnings("HashCodeToString")
 final class OpenTelemetryFunctionTimer<T> implements FunctionTimer, RemovableMeter {
@@ -100,7 +101,7 @@ public void onRemove() {
 
   @SuppressWarnings("EqualsWhichDoesntCheckParameterClass")
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(@Nullable Object o) {
     return MeterEquivalence.equals(this, o);
   }
 
diff --git a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryGauge.java b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryGauge.java
index f05e93d20df1..c29823319ebe 100644
--- a/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryGauge.java
+++ b/instrumentation/micrometer/micrometer-1.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/micrometer/v1_5/OpenTelemetryGauge.java
@@ -58,7 +58,7 @@ public void onRemove() {
 
   @SuppressWarnings("EqualsWhichDoesntCheckParameterClass")
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(@Nullable Object o) {
     return MeterEquivalence.equals(this, o);
   }