How can I loop through Exception getCause() to find root cause with detail message [duplicate]

Answer 1

Using java 8 Stream API, this can be achieved by:

Optional rootCause = Stream.iterate(exception, Throwable::getCause)
                                      .filter(element -> element.getCause() == null)
                                      .findFirst();

Note that this code is not immune to exception cause loops and therefore should be avoided in production.