FICO Software QA Engineer II (Java, Selenium WebDriver) interview questions

The interview was quite a tough one as the expectations were high compared to the Selenium profile. They were particular about complete knowledge of ANT, MAVEN, Jenkins. The questions asked were about the issues faced in their project Ex: a) Finding Xpath for a certain html dynamic code. (which wasn't as simple as it sounds). b) write code in Collections - complete code with the correct function names. (They were not satisfied with crude function names) c) Reversing a String in java without use of reverse / split function.