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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * accompanied this code).
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package java.util.jar;

import java.io.IOException;
import java.util.zip.ZipEntry;
import java.security.CodeSigner;
import java.security.cert.Certificate;

This class is used to represent a JAR file entry.
Since:
1.2/**
 * This class is used to represent a JAR file entry.
 *
 * @since 1.2
 */
public
class JarEntry extends ZipEntry {
    Attributes attr;
    Certificate[] certs;
    CodeSigner[] signers;

    
Creates a new JarEntry for the specified JAR file
entry name.
Params:
name – the JAR file entry name
Throws:
NullPointerException – if the entry name is null
IllegalArgumentException – if the entry name is longer than
           0xFFFF bytes./**
     * Creates a new <code>JarEntry</code> for the specified JAR file
     * entry name.
     *
     * @param name the JAR file entry name
     * @exception NullPointerException if the entry name is <code>null</code>
     * @exception IllegalArgumentException if the entry name is longer than
     *            0xFFFF bytes.
     */
    public JarEntry(String name) {
        super(name);
    }

    
Creates a new JarEntry with fields taken from the
specified ZipEntry object.
Params:
ze – the ZipEntry object to create the
          JarEntry from/**
     * Creates a new <code>JarEntry</code> with fields taken from the
     * specified <code>ZipEntry</code> object.
     * @param ze the <code>ZipEntry</code> object to create the
     *           <code>JarEntry</code> from
     */
    public JarEntry(ZipEntry ze) {
        super(ze);
    }

    
Creates a new JarEntry with fields taken from the
specified JarEntry object.
Params:
je – the JarEntry to copy/**
     * Creates a new <code>JarEntry</code> with fields taken from the
     * specified <code>JarEntry</code> object.
     *
     * @param je the <code>JarEntry</code> to copy
     */
    public JarEntry(JarEntry je) {
        this((ZipEntry)je);
        this.attr = je.attr;
        this.certs = je.certs;
        this.signers = je.signers;
    }

    
Returns the Manifest Attributes for this
entry, or null if none.
Throws:
IOException –  if an I/O error has occurred
Returns:
the Manifest Attributes for this
entry, or null if none/**
     * Returns the <code>Manifest</code> <code>Attributes</code> for this
     * entry, or <code>null</code> if none.
     *
     * @return the <code>Manifest</code> <code>Attributes</code> for this
     * entry, or <code>null</code> if none
     * @throws IOException  if an I/O error has occurred
     */
    public Attributes getAttributes() throws IOException {
        return attr;
    }

    
Returns the Certificate objects for this entry, or
null if none. This method can only be called once
the JarEntry has been completely verified by reading
from the entry input stream until the end of the stream has been
reached. Otherwise, this method will return null.
The returned certificate array comprises all the signer certificates
that were used to verify this entry. Each signer certificate is
followed by its supporting certificate chain (which may be empty).
Each signer certificate and its supporting certificate chain are ordered
bottom-to-top (i.e., with the signer certificate first and the (root)
certificate authority last).
Returns:
the Certificate objects for this entry, or
null if none./**
     * Returns the <code>Certificate</code> objects for this entry, or
     * <code>null</code> if none. This method can only be called once
     * the <code>JarEntry</code> has been completely verified by reading
     * from the entry input stream until the end of the stream has been
     * reached. Otherwise, this method will return <code>null</code>.
     *
     * <p>The returned certificate array comprises all the signer certificates
     * that were used to verify this entry. Each signer certificate is
     * followed by its supporting certificate chain (which may be empty).
     * Each signer certificate and its supporting certificate chain are ordered
     * bottom-to-top (i.e., with the signer certificate first and the (root)
     * certificate authority last).
     *
     * @return the <code>Certificate</code> objects for this entry, or
     * <code>null</code> if none.
     */
    public Certificate[] getCertificates() {
        return certs == null ? null : certs.clone();
    }

    
Returns the CodeSigner objects for this entry, or
null if none. This method can only be called once
the JarEntry has been completely verified by reading
from the entry input stream until the end of the stream has been
reached. Otherwise, this method will return null.
The returned array comprises all the code signers that have signed
this entry.
Returns:
the CodeSigner objects for this entry, or
null if none.
Since:
1.5/**
     * Returns the <code>CodeSigner</code> objects for this entry, or
     * <code>null</code> if none. This method can only be called once
     * the <code>JarEntry</code> has been completely verified by reading
     * from the entry input stream until the end of the stream has been
     * reached. Otherwise, this method will return <code>null</code>.
     *
     * <p>The returned array comprises all the code signers that have signed
     * this entry.
     *
     * @return the <code>CodeSigner</code> objects for this entry, or
     * <code>null</code> if none.
     *
     * @since 1.5
     */
    public CodeSigner[] getCodeSigners() {
        return signers == null ? null : signers.clone();
    }

    
Returns the real name of this JarEntry. If this JarEntry is an entry of a multi-release jar file and the JarFile is configured to be processed as such, the name returned by this method is the path name of the versioned entry that the JarEntry represents, rather than the path name of the base entry that ZipEntry.getName() returns. If the JarEntry does not represent a versioned entry of a multi-release JarFile or the JarFile is not configured for processing a multi-release jar file, this method returns the same name that ZipEntry.getName() returns. 
Returns:
the real name of the JarEntry
Since:
10/**
     * Returns the real name of this {@code JarEntry}.
     *
     * If this {@code JarEntry} is an entry of a
     * <a href="JarFile.html#multirelease">multi-release jar file</a> and the
     * {@code JarFile} is configured to be processed as such, the name returned
     * by this method is the path name of the versioned entry that the
     * {@code JarEntry} represents, rather than the path name of the base entry
     * that {@link #getName()} returns. If the {@code JarEntry} does not represent
     * a versioned entry of a multi-release {@code JarFile} or the {@code JarFile}
     * is not configured for processing a multi-release jar file, this method
     * returns the same name that {@link #getName()} returns.
     *
     * @return the real name of the JarEntry
     *
     * @since 10
     */
    public String getRealName() {
        return super.getName();
    }
}