Remove calls to initCause

In favor of setting the cause in the constructor, which allows
some code simplifications.

PiperOrigin-RevId: 387062636

extensions/cronet/src/main/java/com/google/android/exoplayer2/ext/cronet/CronetDataSource.java

@@ -713,18 +713,18 @@ public class CronetDataSource extends BaseDataSource implements HttpDataSource {
         responseBody = Util.EMPTY_BYTE_ARRAY;
       }
 
-      InvalidResponseCodeException exception =
-          new InvalidResponseCodeException(
-              responseCode,
-              responseInfo.getHttpStatusText(),
-              responseHeaders,
-              dataSpec,
-              responseBody);
-      if (responseCode == 416) {
-        exception.initCause(
-            new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE));
-      }
-      throw exception;
+      @Nullable
+      IOException cause =
+          responseCode == 416
+              ? new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE)
+              : null;
+      throw new InvalidResponseCodeException(
+          responseCode,
+          responseInfo.getHttpStatusText(),
+          cause,
+          responseHeaders,
+          dataSpec,
+          responseBody);
     }
 
     // Check for a valid content type.
@@ -1188,6 +1188,7 @@ public class CronetDataSource extends BaseDataSource implements HttpDataSource {
               new InvalidResponseCodeException(
                   responseCode,
                   info.getHttpStatusText(),
+                  /* cause= */ null,
                   info.getAllHeaders(),
                   dataSpec,
                   /* responseBody= */ Util.EMPTY_BYTE_ARRAY);

extensions/okhttp/src/main/java/com/google/android/exoplayer2/ext/okhttp/OkHttpDataSource.java

@@ -324,14 +324,13 @@ public class OkHttpDataSource extends BaseDataSource implements HttpDataSource {
       }
       Map<String, List<String>> headers = response.headers().toMultimap();
       closeConnectionQuietly();
-      InvalidResponseCodeException exception =
-          new InvalidResponseCodeException(
-              responseCode, response.message(), headers, dataSpec, errorResponseBody);
-      if (responseCode == 416) {
-        exception.initCause(
-            new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE));
-      }
-      throw exception;
+      @Nullable
+      IOException cause =
+          responseCode == 416
+              ? new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE)
+              : null;
+      throw new InvalidResponseCodeException(
+          responseCode, response.message(), cause, headers, dataSpec, errorResponseBody);
     }
 
     // Check for a valid content type.

library/common/src/main/java/com/google/android/exoplayer2/upstream/DataSourceException.java

@@ -76,7 +76,7 @@ public class DataSourceException extends IOException {
    *     PlaybackException.ErrorCode}.
    */
   public DataSourceException(
-      String message, Throwable cause, @PlaybackException.ErrorCode int reason) {
+      String message, @Nullable Throwable cause, @PlaybackException.ErrorCode int reason) {
     super(message, cause);
     this.reason = reason;
   }

library/common/src/main/java/com/google/android/exoplayer2/upstream/DefaultHttpDataSource.java

@@ -400,14 +400,13 @@ public class DefaultHttpDataSource extends BaseDataSource implements HttpDataSou
         errorResponseBody = Util.EMPTY_BYTE_ARRAY;
       }
       closeConnectionQuietly();
-      InvalidResponseCodeException exception =
-          new InvalidResponseCodeException(
-              responseCode, responseMessage, headers, dataSpec, errorResponseBody);
-      if (responseCode == 416) {
-        exception.initCause(
-            new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE));
-      }
-      throw exception;
+      @Nullable
+      IOException cause =
+          responseCode == 416
+              ? new DataSourceException(PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE)
+              : null;
+      throw new InvalidResponseCodeException(
+          responseCode, responseMessage, cause, headers, dataSpec, errorResponseBody);
     }
 
     // Check for a valid content type.

library/common/src/main/java/com/google/android/exoplayer2/upstream/HttpDataSource.java

@@ -317,7 +317,7 @@ public interface HttpDataSource extends DataSource {
      */
     public HttpDataSourceException(
         String message,
-        IOException cause,
+        @Nullable IOException cause,
         DataSpec dataSpec,
         @PlaybackException.ErrorCode int errorCode,
         @Type int type) {
@@ -386,7 +386,8 @@ public interface HttpDataSource extends DataSource {
     public final byte[] responseBody;
 
     /**
-     * @deprecated Use {@link #InvalidResponseCodeException(int, String, Map, DataSpec, byte[])}.
+     * @deprecated Use {@link #InvalidResponseCodeException(int, String, IOException, Map, DataSpec,
+     *     byte[])}.
      */
     @Deprecated
     public InvalidResponseCodeException(
@@ -394,13 +395,15 @@ public interface HttpDataSource extends DataSource {
       this(
           responseCode,
           /* responseMessage= */ null,
+          /* cause= */ null,
           headerFields,
           dataSpec,
           /* responseBody= */ Util.EMPTY_BYTE_ARRAY);
     }
 
     /**
-     * @deprecated Use {@link #InvalidResponseCodeException(int, String, Map, DataSpec, byte[])}.
+     * @deprecated Use {@link #InvalidResponseCodeException(int, String, IOException, Map, DataSpec,
+     *     byte[])}.
      */
     @Deprecated
     public InvalidResponseCodeException(
@@ -411,6 +414,7 @@ public interface HttpDataSource extends DataSource {
       this(
           responseCode,
           responseMessage,
+          /* cause= */ null,
           headerFields,
           dataSpec,
           /* responseBody= */ Util.EMPTY_BYTE_ARRAY);
@@ -419,11 +423,13 @@ public interface HttpDataSource extends DataSource {
     public InvalidResponseCodeException(
         int responseCode,
         @Nullable String responseMessage,
+        @Nullable IOException cause,
         Map<String, List<String>> headerFields,
         DataSpec dataSpec,
         byte[] responseBody) {
       super(
           "Response code: " + responseCode,
+          cause,
           dataSpec,
           PlaybackException.ERROR_CODE_IO_BAD_HTTP_STATUS,
           TYPE_OPEN);

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

@@ -296,6 +296,7 @@ public final class DefaultLoadErrorHandlingPolicyTest {
     return new InvalidResponseCodeException(
         statusCode,
         message,
+        /* cause= */ null,
         Collections.emptyMap(),
         new DataSpec(Uri.EMPTY),
         /* responseBody= */ Util.EMPTY_BYTE_ARRAY);

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSourceTest.java

@@ -339,6 +339,7 @@ public class DefaultDashChunkSourceTest {
         new HttpDataSource.InvalidResponseCodeException(
             httpResponseCode,
             /* responseMessage= */ null,
+            /* cause= */ null,
             ImmutableMap.of(),
             dataSpec,
             new byte[0]);