import com.google.common.collect.ImmutableList;
import dk.dma.ais.message.AisMessage;
import dk.dma.ais.message.AisMessage5;
import dk.dma.ais.message.AisStaticCommon;
import dk.dma.ais.message.IVesselPositionMessage;
<BUG>import dk.dma.ais.packet.AisPacket;
import dk.dma.enav.model.geometry.CoordinateSystem;</BUG>
import dk.dma.enav.model.geometry.Position;
import net.jcip.annotations.GuardedBy;
import net.jcip.annotations.ThreadSafe;

import com.google.common.collect.ImmutableList;
import dk.dma.ais.message.AisMessage;
import dk.dma.ais.message.AisMessage5;
import dk.dma.ais.message.AisStaticCommon;
import dk.dma.ais.message.IVesselPositionMessage;
import dk.dma.ais.packet.AisPacket;
import dk.dma.ais.tracker.Target;
import dk.dma.enav.model.geometry.CoordinateSystem;
import dk.dma.enav.model.geometry.Position;
import net.jcip.annotations.GuardedBy;
import net.jcip.annotations.ThreadSafe;
