diff -r 1e6f16fad3a5 -r 4f912cd42876 src/main/java/de/uapcore/lightpit/Functions.java
--- a/src/main/java/de/uapcore/lightpit/Functions.java	Thu Nov 05 13:37:48 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,90 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2018 Mike Becker. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *   1. Redistributions of source code must retain the above copyright
- *      notice, this list of conditions and the following disclaimer.
- *
- *   2. Redistributions in binary form must reproduce the above copyright
- *      notice, this list of conditions and the following disclaimer in the
- *      documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- */
-package de.uapcore.lightpit;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.servlet.ServletContext;
-import javax.servlet.http.HttpServletRequest;
-import java.util.Optional;
-
-/**
- * Contains common static functions.
- */
-public final class Functions {
-
-    private static final Logger LOG = LoggerFactory.getLogger(Functions.class);
-
-    public static Optional<String[]> availableLanguages(ServletContext ctx) {
-        return Optional.ofNullable(ctx.getInitParameter(Constants.CTX_ATTR_LANGUAGES)).map((x) -> x.split("\\s*,\\s*"));
-    }
-
-    public static String enforceExt(String filename, String ext) {
-        return filename.endsWith(ext) ? filename : filename + ext;
-    }
-
-    public static String jspPath(String filename) {
-        return enforceExt(Constants.JSP_PATH_PREFIX + filename, ".jsp");
-    }
-
-    public static String fqn(String base, String name) {
-        return base + "." + name;
-    }
-
-    public static String fqn(Class<?> clazz, String name) {
-        return fqn(clazz.getName(), name);
-    }
-
-    public static String baseHref(HttpServletRequest req) {
-        return String.format("%s://%s:%d%s/",
-                req.getScheme(),
-                req.getServerName(),
-                req.getServerPort(),
-                req.getContextPath());
-    }
-
-    public static String fullPath(HttpServletRequest req) {
-        return req.getServletPath() + Optional.ofNullable(req.getPathInfo()).orElse("");
-    }
-
-    public static int parseIntOrZero(String str) {
-        try {
-            return Integer.parseInt(str);
-        } catch (NumberFormatException ex) {
-            return 0;
-        }
-    }
-
-    /**
-     * This class is not instantiatable.
-     */
-    private Functions() {
-    }
-}