diff --git a/micrometer-core/src/main/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetrics.java b/micrometer-core/src/main/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetrics.java
index 3b088adcac..dff88665a6 100644
--- a/micrometer-core/src/main/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetrics.java
+++ b/micrometer-core/src/main/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetrics.java
@@ -297,8 +297,10 @@ private ThreadPoolExecutor unwrapThreadPoolExecutor(ExecutorService executor, Cl
             Field e = wrapper.getDeclaredField("e");
             e.setAccessible(true);
             return (ThreadPoolExecutor) e.get(executor);
-        } catch (NoSuchFieldException | IllegalAccessException e) {
+        } catch (NoSuchFieldException | IllegalAccessException | RuntimeException e) {
+            // Cannot use InaccessibleObjectException since it was introduced in Java 9, so catch all RuntimeExceptions instead
             // Do nothing. We simply can't get to the underlying ThreadPoolExecutor.
+            log.info("Cannot unwrap ThreadPoolExecutor for monitoring from {} due to {}: {}", wrapper.getName(), e.getClass().getName(), e.getMessage());
         }
         return null;
     }
diff --git a/micrometer-core/src/test/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetricsTest.java b/micrometer-core/src/test/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetricsTest.java
index 5faae9049f..efe976313b 100644
--- a/micrometer-core/src/test/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetricsTest.java
+++ b/micrometer-core/src/test/java/io/micrometer/core/instrument/binder/jvm/ExecutorServiceMetricsTest.java
@@ -15,6 +15,7 @@
  */
 package io.micrometer.core.instrument.binder.jvm;
 
+import io.micrometer.core.Issue;
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.MockClock;
 import io.micrometer.core.instrument.Tag;
@@ -22,12 +23,15 @@
 import io.micrometer.core.instrument.simple.SimpleConfig;
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
 import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledForJreRange;
+import org.junit.jupiter.api.condition.JRE;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
 
 import java.util.concurrent.*;
 
-import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.*;
 
 /**
  * Tests for {@link ExecutorServiceMetrics}.
@@ -106,6 +110,7 @@ void scheduledThreadPoolExecutorAsExecutorService(String metricPrefix, String ex
     }
 
     @DisplayName("ExecutorService can be monitored with a default set of metrics")
+    @DisabledForJreRange(min = JRE.JAVA_16, disabledReason = "See gh-2317 for why we can't run this full test on Java 16+")
     @ParameterizedTest
     @CsvSource({ "custom,custom.", "custom.,custom.", ",''", "' ',''" })
     void monitorExecutorService(String metricPrefix, String expectedMetricPrefix) throws InterruptedException {
@@ -137,6 +142,14 @@ void monitorExecutorService(String metricPrefix, String expectedMetricPrefix) th
         assertThat(registry.get(expectedMetricPrefix + "executor.queued").tags(userTags).gauge().value()).isEqualTo(0.0);
     }
 
+    @DisplayName("No exception thrown trying to monitor Executors private class")
+    @Test
+    @Issue("#2447") // Note: only reproduces on Java 16+ or with --illegal-access=deny
+    void monitorExecutorsExecutorServicePrivateClass() {
+        assertThatCode(() -> ExecutorServiceMetrics.monitor(registry, Executors.newSingleThreadExecutor(), ""))
+                .doesNotThrowAnyException();
+    }
+
     @DisplayName("ScheduledExecutorService can be monitored with a default set of metrics")
     @ParameterizedTest
     @CsvSource({ "custom,custom.", "custom.,custom.", ",''", "' ',''" })