### Question:
PcapHandle { public Timestamp getTimestamp() { return timestamps.get(); } PcapHandle(Pointer handle, TimestampPrecision timestampPrecision); private  PcapHandle(Builder builder); DataLinkType getDlt(); void setDlt(DataLinkType dlt); boolean isOpen(); String getFilteringExpression(); TimestampPrecision getTimestampPrecision(); void setDirection(PcapDirection direction); Timestamp getTimestamp(); Integer getOriginalLength(); int getSnapshot(); SwappedType isSwapped(); int getMajorVersion(); int getMinorVersion(); BpfProgram compileFilter(
    String bpfExpression, BpfCompileMode mode, Inet4Address netmask
  ); void setFilter(
    String bpfExpression, BpfCompileMode mode, Inet4Address netmask
  ); void setFilter(
    String bpfExpression, BpfCompileMode mode
  ); void setFilter(BpfProgram prog); void setBlockingMode(BlockingMode mode); BlockingMode getBlockingMode(); Packet getNextPacket(); byte[] getNextRawPacket(); Packet getNextPacketEx(); byte[] getNextRawPacketEx(); void loop(
    int packetCount, PacketListener listener
  ); void loop(
    int packetCount, PacketListener listener, Executor executor
  ); void loop(
    int packetCount, RawPacketListener listener
  ); void loop(
    int packetCount, RawPacketListener listener, Executor executor
  ); int dispatch(
    int packetCount, PacketListener listener
  ); int dispatch(
    int packetCount, PacketListener listener, Executor executor
  ); int dispatch(
    int packetCount, RawPacketListener listener
  ); int dispatch(
    int packetCount, RawPacketListener listener, Executor executor
  ); PcapDumper dumpOpen(String filePath); void loop(int packetCount, PcapDumper dumper); void breakLoop(); void sendPacket(Packet packet); void sendPacket(byte[] bytes); PcapStat getStats(); List<DataLinkType> listDatalinks(); String getError(); void close(); @Override String toString(); static final Inet4Address PCAP_NETMASK_UNKNOWN; }### Answer:
@Test public void testGetTimestamp() throws Exception { assertNull(ph.getTimestamp()); ph.getNextPacket(); assertEquals(1434220771517L, ph.getTimestamp().getTime()); }