Java Jar Manifest getManifest(final String jarFileName)

Description

Gets the manifest object from jar file.

License

Apache License

Parameter

Parameter	Description
jarFileName	the jar file name

Exception

Parameter	Description
IOException	I/O Exception

Return

the manifest object

Declaration

public static Manifest getManifest(final String jarFileName) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;

import java.util.jar.Manifest;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;

public class Main {
    /**//from  w  w w  .j av a 2  s. c  om
     * Gets the manifest object from jar file.
     *
     * @param jarFileName the jar file name
     * @return the manifest object
     * @throws IOException I/O Exception
     */
    public static Manifest getManifest(final String jarFileName) throws IOException {
        final JarFile jarFile = new JarFile(jarFileName);

        final Manifest manifest = getManifest(jarFile);

        jarFile.close();

        return manifest;
    }

    /**
     * Gets the manifest object from jar file.
     *
     * @param jarFile the jar file
     * @return the manifest object
     * @throws IOException I/O Exception
     */
    public static Manifest getManifest(final JarFile jarFile) throws IOException {
        Manifest manifest = null;

        ZipEntry zipEntry = jarFile.getEntry("META-INF/MANIFEST.MF");

        if (zipEntry == null) {
            zipEntry = jarFile.getEntry("meta-inf/manifest.mf");
        }

        if (zipEntry != null) {
            final InputStream is = jarFile.getInputStream(zipEntry);

            manifest = new Manifest(is);

            is.close();
        }

        return manifest;
    }
}

Related

1. getManifest()
2. getManifest(File file)
3. getManifest(File in)
4. getManifest(File jarFile)
5. getManifest(File pluginFile)
6. getManifest(JarFile pluginJarFile)
7. getManifest(String className)
8. getManifest(String path)
9. getManifest(ZipFile zip)