diff --git a/misc/src/main/java/com/example/snippets/PreloadManagerKotlinSnippets.kt b/misc/src/main/java/com/example/snippets/PreloadManagerKotlinSnippets.kt
index c120e824f..9a67db280 100644
--- a/misc/src/main/java/com/example/snippets/PreloadManagerKotlinSnippets.kt
+++ b/misc/src/main/java/com/example/snippets/PreloadManagerKotlinSnippets.kt
@@ -30,6 +30,7 @@ import java.lang.Math.abs
 // constants to make the code snippets work
 const val currentPlayingIndex = 10
 
+@Suppress("unused_parameter")
 @UnstableApi
 // [START android_defaultpreloadmanager_MyTargetPreloadStatusControl]
 class MyTargetPreloadStatusControl(
@@ -57,6 +58,7 @@ class MyTargetPreloadStatusControl(
 }
 // [END android_defaultpreloadmanager_MyTargetPreloadStatusControl]
 
+@Suppress("unused_parameter")
 class PreloadManagerSnippetsKotlin {
 
     class PreloadSnippetsActivity : AppCompatActivity() {
@@ -73,8 +75,6 @@ class PreloadManagerSnippetsKotlin {
             val preloadManager = preloadManagerBuilder.build()
             // [END android_defaultpreloadmanager_createPLM]
 
-            val player = preloadManagerBuilder.buildExoPlayer()
-
             // [START android_defaultpreloadmanager_addMedia]
             val initialMediaItems = pullMediaItemsFromService(/* count= */ 20)
             for (index in 0 until initialMediaItems.size) {
diff --git a/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsJava.java b/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsJava.java
index 7b9a9e682..0ab8d0314 100644
--- a/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsJava.java
+++ b/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsJava.java
@@ -6,6 +6,7 @@
 
 import androidx.annotation.Nullable;
 
+@SuppressWarnings("unused")
 public class WakeLockSnippetsJava extends Activity {
 
     PowerManager.WakeLock wakeLock;
@@ -23,6 +24,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
     }
 
+    @SuppressWarnings("unused")
     // [START android_backgroundwork_wakelock_release_java]
     void doSomethingAndRelease() throws MyException {
         try {
diff --git a/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsKotlin.kt b/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsKotlin.kt
index 18ead1619..5a398bfdc 100644
--- a/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsKotlin.kt
+++ b/misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsKotlin.kt
@@ -22,6 +22,7 @@ import android.os.Bundle
 import android.os.PowerManager
 
 // Snippets for doc page go here
+@Suppress("unused_parameter")
 class WakeLockSnippetsKotlin : Activity() {
 
     // [START android_backgroundwork_wakelock_create_kotlin]