Compilation error with project Automotion example

[prashantsaraogi]

Thanks for sharing the code with all of us. It is nice features to compare visual images on different browsers. Could you please help to guide us how to resolve below compilation errors. We are trying to resolving couple of them.

if (matchTime != patternArr.length) {
String textJoined = join("", textArr);
String patternJoined = join("", patternArr);
String[] patternJoinedArr = patternJoined.split("");

Join method is not available within the class Testfinder.java

if I need to run the current sample code base on chrome or firefox what changes need to be updated in current code.
Thanks for hosting this on github