Stack trace cleanup

Groovy has a handy class for sanitize stack traces. (i.e. it removes any java, groovy classes from the classpath, so that just so called 'Business' classes remain.

Of course if you are using thirdparty libraries then this might not cleanse the stack trace enough. Therefore it might be useful to append extra ignorable packages into the ignore list.

e.g.

// Add any extra package names here
String[] GROOVY_PACKAGES =
            System.getProperty("groovy.sanitized.stacktraces",
                    "groovy.," +
                            "org.codehaus.groovy.," +
                            "java.," +
                            "javax.," +
                            "sun.," +
                            "gjdk.groovy.,"
            ).split("(\\s|,)+");


public static Throwable sanitize(Throwable t) {
    // Note that this getBoolean access may well be synced...
    if (!Boolean.getBoolean("groovy.full.stacktrace")) {
        StackTraceElement[] trace = t.getStackTrace();
        List newTrace = new ArrayList();
        for (StackTraceElement stackTraceElement : trace) {
            if (isApplicationClass(stackTraceElement.getClassName())) {
                newTrace.add(stackTraceElement);
            }
        }
        // We don't want to lose anything, so log it
        STACK_LOG.log(Level.WARNING, "Sanitizing stacktrace:", t);


        StackTraceElement[] clean = new StackTraceElement[newTrace.size()];
        newTrace.toArray(clean);
        t.setStackTrace(clean);
    }
    return t;
}