unpack200(1) Java Deployment Tools unpack200(1)
NAME
unpack200 - Transforms a packed file produced by pack200(1) into a JAR
file for web deployment.
SYNOPSIS
unpack200 [ options ] input-file JAR-file
options
The command-line options. See Options.
input-file
Name of the input file, which can be a pack200 gzip file or a
pack200 file. The input can also be JAR file produced by
pack200(1) with an effort of 0, in which case the contents of
the input file are copied to the output JAR file with the
Pack200 marker.
JAR-file
Name of the output JAR file.
DESCRIPTION
The unpack200 command is a native implementation that transforms a
packed file produced by pack200(1) into a JAR file. A typical usage
follows. In the following example, the myarchive.jar file is produced
from myarchive.pack.gz with the default unpack200 command settings.
unpack200 myarchive.pack.gz myarchive.jar
OPTIONS
-Hvalue --deflate-hint=value
Sets the deflation to be true, false, or keep on all entries
within a JAR file. The default mode is keep. If the value is
true or false, then the --deflate=hint option overrides the
default behavior and sets the deflation mode on all entries
within the output JAR file.
-r --remove-pack-file
Removes the input pack file.
-v --verbose
Displays minimal messages. Multiple specifications of this
option displays more verbose messages.
-q --quiet
Specifies quiet operation with no messages.
-lfilename --log-file=filename
Specifies a log file where output messages are logged.
-? -h --help
Prints help information about the unpack200 command.
-V --version
Prints version information about the unpack200 command.
-Joption
Passes option to the Java Virtual Machine, where option is one
of the options described on the reference page for the Java
application launcher. For example, -J-Xms48m sets the startup
memory to 48 MB. See java(1).
NOTES
This command should not be confused with the unpack command. They are
distinctly separate products.
The Java SE API Specification provided with the JDK is the superseding
authority in case of discrepancies.
EXIT STATUS
The following exit values are returned: 0 for successful completion,
and a value that is greater than 0 when an error occurred.
SEE ALSO
• pack200(1)
• jar(1)
• jarsigner(1)
• Pack200 and Compression at
http://docs.oracle.com/javase/8/docs/technotes/guides/deployment/deployment-
guide/pack200.html
• The Java SE Technical Documentation page at
http://docs.oracle.com/javase/
JDK 8 21 November 2013 unpack200(1)
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