/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.tomcat.util.scan;

import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;

import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;

import org.apache.tomcat.Jar;
import org.apache.tomcat.JarScanType;
import org.apache.tomcat.JarScannerCallback;
import org.apache.tomcat.unittest.TesterServletContext;
import org.apache.tomcat.util.compat.JreCompat;

public class TestStandardJarScanner {

    @Test
    public void testWebappClassPath() {
        Assume.assumeFalse("No URLClassLoader with Java 9", JreCompat.isJre9Available());

        StandardJarScanner scanner = new StandardJarScanner();

        scanner.setScanClassPath(true);
        // When running the test on Java 9, one or more URLs to jimage files may
        // be returned. By setting the scanAllFiles option, a callback will be
        // generated for these files which in turn will mean the number of URLs
        // and the number of call backs will agree and this test will pass.
        // There is a TODO in StandardJarScanner to add 'proper' Java 9 support.
        scanner.setScanAllFiles(true);

        LoggingCallback callback = new LoggingCallback();

        scanner.scan(JarScanType.PLUGGABILITY, new TesterServletContext(), callback);

        List<String> callbacks = callback.getCallbacks();

        ClassLoader cl = TesterServletContext.class.getClassLoader();
        if (cl instanceof URLClassLoader) {
            URL[] urls =  ((URLClassLoader) cl).getURLs();

            int size;
            if (urls == null) {
                size = 0;
            } else {
                size = urls.length;
            }
            // Some JREs (Gump) construct a class path that includes JARs that
            // reference additional JARs via the Class-Path attribute of the
            // Manifest. These JARs are not returned in ClassLoader.getURLs().
            // Therefore, this test looks for at least as many JARs as there are
            // URLs but it can't check for an exact match.
            Assert.assertTrue("[" + callbacks.size() + "] callbacks but expected at least [" +
                    size + "]", callbacks.size() >= size);

        } else {
            Assert.fail("Unexpected class loader type: " + cl.getClass().getName());
        }
    }


    /**
     * Tomcat should ignore URLs which do not have a file part and do not use the file scheme.
     */
    @Test
    public void skipsInvalidClasspathURLNoFilePartNoFileScheme() {
        StandardJarScanner scanner = new StandardJarScanner();
        LoggingCallback callback = new LoggingCallback();
        TesterServletContext context = new TesterServletContext() {
            @Override
            public ClassLoader getClassLoader() {
                URLClassLoader urlClassLoader;
                try {
                    urlClassLoader = new URLClassLoader(
                            new URL[] { new URL("http://felix.extensions:9/") });
                } catch (MalformedURLException e) {
                    throw new RuntimeException(e);
                }
                return urlClassLoader;
            }
        };
        scanner.scan(JarScanType.PLUGGABILITY, context, callback);
    }


    private static class LoggingCallback implements JarScannerCallback {

        List<String> callbacks = new ArrayList<>();

        @Override
        public void scan(Jar jar, String webappPath,
                boolean isWebapp) throws IOException {
            callbacks.add(jar.getJarFileURL().toString() + "::" + webappPath + "::" + isWebapp);
        }

        @Override
        public void scan(File file, String webappPath, boolean isWebapp)
                throws IOException {
            callbacks.add(file.toString() + "::" + webappPath + "::" + isWebapp);
        }

        @Override
        public void scanWebInfClasses() throws IOException {
            callbacks.add("N/A::WEB-INF/classes::N/A");
        }

        public List<String> getCallbacks() {
            return callbacks;
        }
    }
}

@@ -1031,58 +1031,8 @@
 t;%0A%0A
-import org.junit.Assert;%0Aimport org.junit.Assume;%0A
 impo
@@ -1224,1956 +1224,46 @@
 xt;%0A
-import org.apache.tomcat.util.compat.JreCompat;%0A%0Apublic class TestStandardJarScanner %7B%0A%0A    @Test%0A    public void testWebappClassPath() %7B%0A        Assume.assumeFalse(%22No URLClassLoader with Java 9%22, JreCompat.isJre9Available());%0A%0A        StandardJarScanner scanner = new StandardJarScanner();%0A%0A        scanner.setScanClassPath(true);%0A        // When running the test on Java 9, one or more URLs to jimage files may%0A        // be returned. By setting the scanAllFiles option, a callback will be%0A        // generated for these files which in turn will mean the number of URLs%0A        // and the number of call backs will agree and this test will pass.%0A        // There is a TODO in StandardJarScanner to add 'proper' Java 9 support.%0A        scanner.setScanAllFiles(true);%0A%0A        LoggingCallback callback = new LoggingCallback();%0A%0A        scanner.scan(JarScanType.PLUGGABILITY, new TesterServletContext(), callback);%0A%0A        List%3CString%3E callbacks = callback.getCallbacks();%0A%0A        ClassLoader cl = TesterServletContext.class.getClassLoader();%0A        if (cl instanceof URLClassLoader) %7B%0A            URL%5B%5D urls =  ((URLClassLoader) cl).getURLs();%0A%0A            int size;%0A            if (urls == null) %7B%0A                size = 0;%0A            %7D else %7B%0A                size = urls.length;%0A            %7D%0A            // Some JREs (Gump) construct a class path that includes JARs that%0A            // reference additional JARs via the Class-Path attribute of the%0A            // Manifest. These JARs are not returned in ClassLoader.getURLs().%0A            // Therefore, this test looks for at least as many JARs as there are%0A            // URLs but it can't check for an exact match.%0A            Assert.assertTrue(%22%5B%22 + callbacks.size() + %22%5D callbacks but expected at least %5B%22 +%0A                    size + %22%5D%22, callbacks.size() %3E= size);%0A%0A        %7D else %7B%0A            Assert.fail(%22Unexpected class loader type: %22 + cl.getClass().getName());%0A        %7D%0A    %7D%0A
+%0Apublic class TestStandardJarScanner %7B
 %0A%0A  
@@ -2907,94 +2907,8 @@
    %7D
-%0A%0A        public List%3CString%3E getCallbacks() %7B%0A            return callbacks;%0A        %7D
 %0A   

Remove use of JreCompat as it is not required with Java 11+