jdk/src/solaris/doc/sun/man/man1/ja/extcheck.1
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'\" t
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.\" Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
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.\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.\"
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.\" This code is free software; you can redistribute it and/or modify it
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.\" under the terms of the GNU General Public License version 2 only, as
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.\" published by the Free Software Foundation.
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.\"
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.\" This code is distributed in the hope that it will be useful, but WITHOUT
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.\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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.\" FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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.\" version 2 for more details (a copy is included in the LICENSE file that
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.\" accompanied this code).
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.\"
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.\" You should have received a copy of the GNU General Public License version
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.\" 2 along with this work; if not, write to the Free Software Foundation,
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.\" Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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.\"
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.\" Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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.\" CA 95054 USA or visit www.sun.com if you need additional information or
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.\" have any questions.
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.\" ` 
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'\"macro stdmacro
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.TH extcheck 1 "2006 年 9 月 4 日" "Java SE 6" "ユーザーコマンド"
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.SH "名前"
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extcheck \- jar の競合検出ユーティリティ
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.LP
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.LP
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.LP
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\f3extcheck\fP は、ターゲットの jar ファイルと現在インストールされている拡張機能の jar ファイル間のバージョンの競合を検出します。
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.LP
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.SH "形式"
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.B extcheck 
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[ 
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.B \-verbose 
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] 
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.B targetfile.jar
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.SH "機能説明"
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.IX "jar conflict detection utility" "" "jar conflict detection utility \(em \fLextcheck\fP"
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.IX "extcheck" "" "\fLextcheck\fP \(em jar conflict detection utility"
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.B extcheck 
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ユーティリティは、指定された
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.B jar
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ファイルのタイトルおよびバージョンが Java(TM) SDK 
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ソフトウェアにインストールされている拡張機能と競合していないかを
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検査します。
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拡張機能をインストールする前に、このユーティリティを使って、
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バージョンが同じか、
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より新しい拡張機能がすでにインストールされていないかどうかを調べる
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ことができます。
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.LP
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.B extcheck
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ユーティリティは、
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.I targetfile.jar
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ファイルのマニフェスト内のヘッダ
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.I Specification-title 
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および 
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.I Specification-version
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を、拡張機能ディレクトリ内に現在インストールされているすべての jar 
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ファイル内の対応するヘッダと比較します。
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デフォルトでは、拡張機能ディレクトリは、
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.I jre/lib/ext
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です。
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.B extcheck 
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ユーティリティは、
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.I java.lang.Package.isCompatibleWith
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メソッドと同様の方法でバージョン番号を比較します。
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.LP
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競合が検出されない場合、リターンコードは
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.I 0 です。
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.LP
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拡張機能ディレクトリ内の 
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.B jar 
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ファイルのマニフェストに、同一の 
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.I Specification-title、
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および同一またはより新しい 
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.I Specification-version 
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番号がある場合、ゼロでないエラー
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コードが返されます。
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.I targetfile.jar 
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のマニフェストに 
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.I Specification-title 
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または 
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.I Specification-version 
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属性がない場合も、ゼロでないエラーコードが返されます。
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.SH "オプション"
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以下のオプションが指定できます。
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.TP 15
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.B -verbose
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拡張機能ディレクトリ内の
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.B jar
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ファイルを、検査時に一覧表示します。また、ターゲット 
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.B jar
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ファイルのマニフェストの属性、および競合する
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.B jar
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ファイルについても報告します。
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.TP 15
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.BI \-J "option"
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.I option
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を Java 仮想マシンに渡します。ここで、
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.I option
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は、Java アプリケーション起動プログラム java(1) のマニュアルページで
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説明されているオプションの 1 つです。たとえば、-J-Xms48m
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は、起動時に使用するメモリを 48M バイトに設定します。
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.SH "関連項目"
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.BR jar (1)