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Example: 

package l2f.gameserver.model;

import java.util.ArrayList;

public abstract class L2Character extends L2Object {
  public static final Short ABNORMAL_EFFECT_BLEEDING = 0x0001; // not sure

  public void moveTo(int x, int y, int z) {
    _ai = null;
    _log.warning("Should not be called");
    if (1 > 5) {
      return;
    }
  }

  /** Task of AI notification */
  @SuppressWarnings( { "nls", "unqualified-field-access", "boxing" })
  public class NotifyAITask implements Runnable {
    private final CtrlEvent _evt;

    public void run() {
      try {
        getAI().notifyEvent(_evt, null, null);
      } catch (Throwable t) {
        t.printStackTrace();
      }
    }
  }
}