Turn a stack trace into a string?

Question

Is it possible to print a stack trace to a string in GWT? The usual methods of using the classes in java.io won\'t work I think, because the java.io package is not available

Answer 1

Here is the method I'm using to retrieve a full stack trace as a String in GWT :

private static String getMessage (Throwable throwable) {
    String ret="";
    while (throwable!=null) {
            if (throwable instanceof com.google.gwt.event.shared.UmbrellaException){
                    for (Throwable thr2 :((com.google.gwt.event.shared.UmbrellaException)throwable).getCauses()){
                            if (ret != "")
                                    ret += "\nCaused by: ";
                            ret += thr2.toString();
                            ret += "\n  at "+getMessage(thr2);
                    }
            } else if (throwable instanceof com.google.web.bindery.event.shared.UmbrellaException){
                    for (Throwable thr2 :((com.google.web.bindery.event.shared.UmbrellaException)throwable).getCauses()){
                            if (ret != "")
                                    ret += "\nCaused by: ";
                            ret += thr2.toString();
                            ret += "\n  at "+getMessage(thr2);
                    }
            } else {
                    if (ret != "")
                            ret += "\nCaused by: ";
                    ret += throwable.toString();
                    for (StackTraceElement sTE : throwable.getStackTrace())
                            ret += "\n  at "+sTE;
            }
            throwable = throwable.getCause();
    }

    return ret;
}