Where install SQLiteAndroidDatabase.java file?

I'm trying use Cordova-sqlite-storage in my Phonegap application

I has included SQLitePlugin.js in my application page, but when I execute the documentation demo code, is returning this error message in console:

[console.log] OPEN database: Database
[console.log] new transaction is waiting for open operation
[console.log] OPEN database: Database failed. aborting any pending transactions
[console.log] Could not open database

This is code executed:

// Wait for Cordova to load
document.addEventListener("deviceready", onDeviceReady, false);

// Cordova is ready
function onDeviceReady() {
  var db = window.sqlitePlugin.openDatabase("Database", "1.0", "Demo", -1);

  db.transaction(function(tx) {
    tx.executeSql('DROP TABLE IF EXISTS test_table');
    tx.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');

    tx.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(tx, res) {
      console.log("insertId: " + res.insertId + " -- probably 1");
      console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");

      tx.executeSql("select count(id) as cnt from test_table;", [], function(tx, res) {
        console.log("res.rows.length: " + res.rows.length + " -- should be 1");
        console.log("res.rows.item(0).cnt: " + res.rows.item(0).cnt + " -- should be 1");
      });

    }, function(e) {
      console.log("ERROR: " + e.message);
    });
  });
}

Where is worse?