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import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
class Reader extends Consumer implements Runnable {
  public void run() {
    int[] deepCopy;
    
    synchronized (Shared.cache) {
      int[] value = Shared.cache.get("key");
      
      deepCopy = Arrays.copyOf(value, value.length);
    }
    consume(deepCopy);
  }
}
// {...}
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