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import java.io.File;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

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import java.lang.reflect.Type;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;

import javafx.beans.property.SimpleStringProperty;

public class SimpleStringPropertyDeserializer implements JsonDeserializer<SimpleStringProperty> {

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import java.lang.reflect.Type;
import com.google.gson.*;
import javafx.beans.property.SimpleStringProperty;

public class SimpleStringPropertySerializer implements JsonSerializer<SimpleStringProperty> {
	 public JsonElement serialize(SimpleStringProperty src, Type typeOfSrc, JsonSerializationContext context) {
	    return new JsonPrimitive(src.get());
	  }
}

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package javaFxUtils;


import java.io.PrintWriter;
import java.io.StringWriter;

import javafx.collections.ListChangeListener;
import javafx.collections.ObservableList;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;

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import java.util.Arrays;

import android.content.Context;
import android.provider.Settings;
import android.telephony.TelephonyManager;

public class UniqueID {
  public static String getDeviceId(Context context) {
    String id = getUniqueID(context);
    if (id == null)