synchronize collections with possible concurrent accesses (#1723)
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@ -27,6 +27,9 @@ import io.netty.channel.ChannelHandler;
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import io.netty.util.AttributeKey;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Map.Entry;
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@ -95,8 +98,8 @@ public class NettyChannelInjector implements Injector {
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private final FieldAccessor channelField;
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private final Set<Object> skippedPackets = new HashSet<>();
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private final Set<Object> processedPackets = new HashSet<>();
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private final Set<Object> skippedPackets = Collections.synchronizedSet(new HashSet<>());
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private final Collection<Object> processedPackets = Collections.synchronizedList(new ArrayList<>());
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private final Map<Object, NetworkMarker> savedMarkers = new WeakHashMap<>(16, 0.9f);
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// status of this injector
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