Do not retry failed loads whose error is FileNotFoundException

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=214277073

RELEASENOTES.md

@@ -2,6 +2,7 @@
 
 ### dev-v2 (not yet released) ###
 
+* Do not retry failed loads whose error is `FileNotFoundException`.
 * Allow setting log level for ExoPlayer logcat output
   ([#4665](https://github.com/google/ExoPlayer/issues/4665)).
 * Fix an issue where audio and video would desynchronize when playing

library/core/src/main/java/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicy.java

@@ -18,6 +18,7 @@ package com.google.android.exoplayer2.upstream;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.upstream.HttpDataSource.InvalidResponseCodeException;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 
 /** Default implementation of {@link LoadErrorHandlingPolicy}. */
@@ -76,13 +77,14 @@ public final class DefaultLoadErrorHandlingPolicy implements LoadErrorHandlingPo
   }
 
   /**
-   * Retries for any exception that is not a subclass of {@link ParserException}. The retry delay is
-   * calculated as {@code Math.min((errorCount - 1) * 1000, 5000)}.
+   * Retries for any exception that is not a subclass of {@link ParserException} or {@link
+   * FileNotFoundException}. The retry delay is calculated as {@code Math.min((errorCount - 1) *
+   * 1000, 5000)}.
    */
   @Override
   public long getRetryDelayMsFor(
       int dataType, long loadDurationMs, IOException exception, int errorCount) {
-    return exception instanceof ParserException
+    return exception instanceof ParserException || exception instanceof FileNotFoundException
         ? C.TIME_UNSET
         : Math.min((errorCount - 1) * 1000, 5000);
   }

library/core/src/test/java/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicyTest.java

@@ -21,7 +21,6 @@ import android.net.Uri;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.upstream.HttpDataSource.InvalidResponseCodeException;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.Collections;
 import org.junit.Test;
@@ -57,7 +56,7 @@ public final class DefaultLoadErrorHandlingPolicyTest {
 
   @Test
   public void getBlacklistDurationMsFor_dontBlacklistUnexpectedExceptions() {
-    FileNotFoundException exception = new FileNotFoundException();
+    IOException exception = new IOException();
     assertThat(getDefaultPolicyBlacklistOutputFor(exception)).isEqualTo(C.TIME_UNSET);
   }
 
@@ -69,9 +68,9 @@ public final class DefaultLoadErrorHandlingPolicyTest {
 
   @Test
   public void getRetryDelayMsFor_successiveRetryDelays() {
-    assertThat(getDefaultPolicyRetryDelayOutputFor(new FileNotFoundException(), 3)).isEqualTo(2000);
-    assertThat(getDefaultPolicyRetryDelayOutputFor(new FileNotFoundException(), 5)).isEqualTo(4000);
-    assertThat(getDefaultPolicyRetryDelayOutputFor(new FileNotFoundException(), 9)).isEqualTo(5000);
+    assertThat(getDefaultPolicyRetryDelayOutputFor(new IOException(), 3)).isEqualTo(2000);
+    assertThat(getDefaultPolicyRetryDelayOutputFor(new IOException(), 5)).isEqualTo(4000);
+    assertThat(getDefaultPolicyRetryDelayOutputFor(new IOException(), 9)).isEqualTo(5000);
   }
 
   private static long getDefaultPolicyBlacklistOutputFor(IOException exception) {