[findBugs] PackWriter.NONE should be final
Change-Id: I4b5621bcb4db82e0560408b3cde6f18b0cc55b29 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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@ -164,7 +164,7 @@ public class PackWriter implements AutoCloseable {
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private static final int PACK_VERSION_GENERATED = 2;
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/** Empty set of objects for {@code preparePack()}. */
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public static Set<ObjectId> NONE = Collections.emptySet();
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public static final Set<ObjectId> NONE = Collections.emptySet();
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private static final Map<WeakReference<PackWriter>, Boolean> instances =
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new ConcurrentHashMap<WeakReference<PackWriter>, Boolean>();
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