try-with-resourcesを使ったトランザクション/Finder

gistfile1.java

		// Finder
		try (Tx tx = new Tx(sf)) {
			{
				DBTest test = tx.from(DBTest.class).uniq();
				assertNotNull(test);
			}
			{
				DBTest test = tx.from(DBTest.class).where("name = 'aaa'").uniq();
				assertNotNull(test);
			}
			{
				List<DBTest> test = tx.from(DBTest.class).list();
				assertEquals(1, test.size());
			}
			{
				List<DBTest> test = tx.from(DBTest.class).where("name = 'aaa'").list();
				assertEquals(1, test.size());
			}
		}