### Question:
StringToLocationConverter extends TypedConverter<String, Location> { public static boolean isLocation( @Nullable String source ) { return (source == null) || LOCATION_PATTERN.matcher( source ).matches(); } StringToLocationConverter(); @Nullable @Override Location doConvert( @Nonnull String source ); static boolean isLocation( @Nullable String source );  }### Answer:
@Test public void isLocation() { Assert.assertTrue( StringToLocationConverter.isLocation( "[-10.91,+67.124]" ) ); }
@Test public void isNotLocation() { Assert.assertFalse( StringToLocationConverter.isLocation( "[-10.91;+67.124]" ) ); }