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.TH "UNPACK200" "1" "2018" "JDK 13" "JDK Commands"
.hy
.SH NAME
.PP
unpack200 \- transform a packed file into a JAR file for web deployment
.SH SYNOPSIS
.PP
\f[CB]unpack200\f[R] [\f[I]options\f[R]] \f[I]input\-file\f[R]
\f[I]JAR\-file\f[R]
.TP
.B \f[I]options\f[R]
The command\-line options.
See \f[B]Options for the unpack200 Command\f[R].
.RS
.RE
.TP
.B \f[I]input\-file\f[R]
Name of the input file, which can be a \f[CB]pack200\ gzip\f[R] file or a
\f[CB]pack200\f[R] file.
The input can also be a JAR file produced by \f[CB]pack200\f[R] with an
effort of \f[CB]0\f[R], in which case the contents of the input file are
copied to the output JAR file with the \f[CB]pack200\f[R] marker.
.RS
.RE
.TP
.B \f[I]JAR\-file\f[R]
Name of the output JAR file.
.RS
.RE
.SH DESCRIPTION
.PP
The \f[CB]unpack200\f[R] command is a native implementation that
transforms a packed file produced by the \f[CB]pack200\f[R] into a JAR
file for web deployment.
An example of typical usage follows.
In the following example, the \f[CB]myarchive.jar\f[R] file is produced
from \f[CB]myarchive.pack.gz\f[R] with the default \f[CB]unpack200\f[R]
command settings.
.RS
.PP
\f[CB]unpack200\ myarchive.pack.gz\ myarchive.jar\f[R]
.RE
.SH OPTIONS FOR THE UNPACK200 COMMAND
.TP
.B \f[CB]\-H\f[R]\f[I]value\f[R] or \f[CB]\-\-deflate\-hint=\f[R]\f[I]value\f[R]
Sets the deflation to be \f[CB]true\f[R], \f[CB]false\f[R], or \f[CB]keep\f[R]
on all entries within a JAR file.
The default mode is \f[CB]keep\f[R].
If the value is \f[CB]true\f[R] or \f[CB]false\f[R], then the
\f[CB]\-\-deflate=hint\f[R] option overrides the default behavior and sets
the deflation mode on all entries within the output JAR file.
.RS
.RE
.TP
.B \f[CB]\-r\f[R] or \f[CB]\-\-remove\-pack\-file\f[R]
Removes the input pack file.
.RS
.RE
.TP
.B \f[CB]\-v\f[R] or \f[CB]\-\-verbose\f[R]
Displays minimal messages.
Multiple specifications of this option displays more verbose messages.
.RS
.RE
.TP
.B \f[CB]\-q\f[R] or \f[CB]\-\-quiet\f[R]
Specifies quiet operation with no messages.
.RS
.RE
.TP
.B \f[CB]\-l\f[R] \f[I]filename\f[R] or \f[CB]\-\-log\-file=\f[R]\f[I]filename\f[R]
Specifies a log file where output messages are logged.
.RS
.RE
.TP
.B \f[CB]\-?\f[R] or \f[CB]\-h\f[R] or \f[CB]\-\-help\f[R]
Prints help information about the \f[CB]unpack200\f[R] command.
.RS
.RE
.TP
.B \f[CB]\-V\f[R] or \f[CB]\-\-version\f[R]
Prints version information about the \f[CB]unpack200\f[R] command.
.RS
.RE
.TP
.B \f[CB]\-J\f[R]\f[I]option\f[R]
Passes \f[I]option\f[R] to the Java Virtual Machine, where
\f[CB]option\f[R] is one of the options described on the reference page
for the Java application launcher.
For example, \f[CB]\-J\-Xms48m\f[R] sets the startup memory to 48 MB.
.RS
.RE
.SH NOTES
.PP
This command shouldn\[aq]t be confused with the \f[CB]unpack\f[R] command.
They\[aq]re distinctly separate products.
.PP
The Java SE API Specification provided with the JDK is the superseding
authority in case of discrepancies.
.SH EXIT STATUS
.PP
The following exit values are returned: 0 for successful completion, and
a value that is greater than 0 when an error occurred.