private final PrivilegedAction<LogContext> logContextAction = new PrivilegedAction<LogContext>() {
    public LogContext run() {
        for (Class<?> caller : GATEWAY.getClassContext()) {
            final ClassLoader classLoader = caller.getClassLoader();
            final LogContext result = check(classLoader);
            if (result != null) {
                return result;
            }
        }
        return defaultSelector.getLogContext();
    }

    private LogContext check(final ClassLoader classLoader) {
        if (classLoader != null && !logApiClassLoaders.contains(classLoader)) {
            final LogContext context = contextMap.get(classLoader);
            if (context != null) {
                return context;
            }
            if (checkParentClassLoaders) {
                return check(classLoader.getParent());
            }
        }
        return null;
    }
};

private final PrivilegedAction<LogContext> logContextAction = new PrivilegedAction<LogContext>() {
    public LogContext run() {
        final Class<?> callingClass = JDKSpecific.findCallingClass(logApiClassLoaders);
        return callingClass == null ? defaultSelector.getLogContext() : check(callingClass.getClassLoader());
    }

    private LogContext check(final ClassLoader classLoader) {
        final LogContext context = contextMap.get(classLoader);
        if (context != null) {
            return context;
        }
        final ClassLoader parent = classLoader.getParent();
        if (parent != null && checkParentClassLoaders && ! logApiClassLoaders.contains(parent)) {
            return check(parent);
        }
        return defaultSelector.getLogContext();
    }
};