### Question:
Int64 extends Message { public static Int64 fromJsonString(java.lang.String jsonString) { return Int64.fromMessage(new Message(jsonString)); } Int64();  Int64(long data); long getData(); @Override Int64 clone(); static Int64 fromJsonString(java.lang.String jsonString); static Int64 fromMessage(Message m); static Int64 fromJsonObject(JsonObject jsonObject); static final java.lang.String FIELD_DATA; static final java.lang.String TYPE; }### Answer:
@Test public void testFromJsonString() { Int64 data = Int64.fromJsonString(i1.toString()); assertEquals(i1.toString(), data.toString()); assertEquals(i1.toJsonObject(), data.toJsonObject()); assertEquals(i1.getMessageType(), data.getMessageType()); assertEquals(i1.getData(), data.getData()); assertNotSame(i1, data); assertNotSame(i1.toString(), data.toString()); assertNotSame(i1.toJsonObject(), data.toJsonObject()); }