Java Jar Usage checkJarValidity(String path)

Description

Checks that file is valid jar archive

License

Apache License

Parameter

Parameter	Description
path	full path to file

Return

true, if file is valid jar, false otherwise

Declaration

public static boolean checkJarValidity(String path) 

Method Source Code

//package com.java2s;
/*//  ww  w.  j  a  v a 2 s.c o  m
 * Copyright 2004-2005 Ignat Aleksandrov, Kamil Shamgunov
 *
 * Licensed 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.
*/

import java.util.jar.JarFile;

public class Main {
    /**
     * Checks that file is valid jar archive
     *
     * @param path full path to file
     * @return true, if file is valid jar, false otherwise
     */
    public static boolean checkJarValidity(String path) {
        try {
            JarFile jar = new JarFile(path);
            // just to check that archive is valid
            jar.size();
        } catch (Exception e) {
            return false;
        }

        return true;
    }
}

Related

1. _getPacker()
2. allocateReadOnlyDictionary(final Attributes attributes)
3. allocateReadOnlyI18nDictionary(final Attributes attributes, final ResourceBundle resourceBundle)
4. containsClass(JarFile jarFile, String agentRunnerClassName)
5. containsClass(JarFile jarFile, String classFilePath)
6. convertAttributes(Attributes attributes)
7. createPacker()