in Downloader, instance vars that are set in constructor should be final
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@ -26,12 +26,12 @@ public abstract class Downloader {
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public static final String EXTRA_BYTES_READ = "extraBytesRead";
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public static final String EXTRA_TOTAL_BYTES = "extraTotalBytes";
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private OutputStream outputStream;
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private final OutputStream outputStream;
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private LocalBroadcastManager localBroadcastManager;
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private final LocalBroadcastManager localBroadcastManager;
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private final File outputFile;
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protected URL sourceUrl;
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protected final URL sourceUrl;
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protected String cacheTag = null;
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public abstract InputStream getInputStream() throws IOException;
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