Module java.base

Package java.util.jar

Class JarEntry

java.lang.Object

java.util.zip.ZipEntry

java.util.jar.JarEntry

All Implemented Interfaces:

Cloneable

public class JarEntry
extends ZipEntry

This class is used to represent a JAR file entry.

Since:

1.2

Field Summary

Fields

Modifier and Type	Field	Description
static int	CENATT
static int	CENATX
static int	CENCOM
static int	CENCRC
static int	CENDSK
static int	CENEXT
static int	CENFLG
static int	CENHDR
static int	CENHOW
static int	CENLEN
static int	CENNAM
static int	CENOFF
static long	CENSIG
static int	CENSIZ
static int	CENTIM
static int	CENVEM
static int	CENVER
static int	ENDCOM
static int	ENDHDR
static int	ENDOFF
static long	ENDSIG
static int	ENDSIZ
static int	ENDSUB
static int	ENDTOT
static int	EXTCRC
static int	EXTHDR
static int	EXTLEN
static long	EXTSIG
static int	EXTSIZ
static int	LOCCRC
static int	LOCEXT
static int	LOCFLG
static int	LOCHDR
static int	LOCHOW
static int	LOCLEN
static int	LOCNAM
static long	LOCSIG
static int	LOCSIZ
static int	LOCTIM
static int	LOCVER

Fields declared in class java.util.zip.ZipEntry

DEFLATED, STORED

Constructor Summary

Constructors

Constructor	Description
JarEntry(String name)	Creates a new JarEntry for the specified JAR file entry name.
JarEntry(JarEntry je)	Creates a new JarEntry with fields taken from the specified JarEntry object.
JarEntry(ZipEntry ze)	Creates a new JarEntry with fields taken from the specified ZipEntry object.

Method Summary

Modifier and Type	Method	Description
Attributes	getAttributes()	Returns the Manifest Attributes for this entry, or null if none.
Certificate[]	getCertificates()	Returns the Certificate objects for this entry, or null if none.
CodeSigner[]	getCodeSigners()	Returns the CodeSigner objects for this entry, or null if none.
String	getRealName()	Returns the real name of this JarEntry.

Methods declared in class java.util.zip.ZipEntry

clone, getComment, getCompressedSize, getCrc, getCreationTime, getExtra, getLastAccessTime, getLastModifiedTime, getMethod, getName, getSize, getTime, getTimeLocal, hashCode, isDirectory, setComment, setCompressedSize, setCrc, setCreationTime, setExtra, setLastAccessTime, setLastModifiedTime, setMethod, setSize, setTime, setTimeLocal, toString

Methods declared in class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

LOCSIG

public static final long LOCSIG

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EXTSIG

public static final long EXTSIG

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CENSIG

public static final long CENSIG

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ENDSIG

public static final long ENDSIG

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LOCHDR

public static final int LOCHDR

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EXTHDR

public static final int EXTHDR

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CENHDR

public static final int CENHDR

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ENDHDR

public static final int ENDHDR

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LOCVER

public static final int LOCVER

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LOCFLG

public static final int LOCFLG

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LOCHOW

public static final int LOCHOW

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LOCTIM

public static final int LOCTIM

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LOCCRC

public static final int LOCCRC

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LOCSIZ

public static final int LOCSIZ

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LOCLEN

public static final int LOCLEN

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LOCNAM

public static final int LOCNAM

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LOCEXT

public static final int LOCEXT

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EXTCRC

public static final int EXTCRC

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EXTSIZ

public static final int EXTSIZ

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EXTLEN

public static final int EXTLEN

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CENVEM

public static final int CENVEM

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CENVER

public static final int CENVER

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CENFLG

public static final int CENFLG

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CENHOW

public static final int CENHOW

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CENTIM

public static final int CENTIM

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CENCRC

public static final int CENCRC

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CENSIZ

public static final int CENSIZ

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CENLEN

public static final int CENLEN

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CENNAM

public static final int CENNAM

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CENEXT

public static final int CENEXT

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CENCOM

public static final int CENCOM

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CENDSK

public static final int CENDSK

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CENATT

public static final int CENATT

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CENATX

public static final int CENATX

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CENOFF

public static final int CENOFF

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ENDSUB

public static final int ENDSUB

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ENDTOT

public static final int ENDTOT

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ENDSIZ

public static final int ENDSIZ

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ENDOFF

public static final int ENDOFF

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ENDCOM

public static final int ENDCOM

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Constructor Details

JarEntry

public JarEntry(String name)

Creates a new JarEntry for the specified JAR file entry name.

Parameters:

name - the JAR file entry name

Throws:

NullPointerException - if the entry name is null

IllegalArgumentException - if the entry name is longer than 0xFFFF bytes.

JarEntry

public JarEntry(ZipEntry ze)

Creates a new JarEntry with fields taken from the specified ZipEntry object.

Parameters:

ze - the ZipEntry object to create the JarEntry from

JarEntry

public JarEntry(JarEntry je)

Creates a new JarEntry with fields taken from the specified JarEntry object.

Parameters:

je - the JarEntry to copy

Method Details

getAttributes

public Attributes getAttributes() throws IOException

Returns the Manifest Attributes for this entry, or null if none.

Returns:

the Manifest Attributes for this entry, or null if none

Throws:

IOException - if an I/O error has occurred

getCertificates

public Certificate[] getCertificates()

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.

getCodeSigners

public CodeSigner[] getCodeSigners()

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

getRealName

public String getRealName()

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