| rgallard | b643545 | 2013-11-25 20:19:02 -0800 | [diff] [blame] | 1 | '\" t |
| 2 | .\" Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
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| 22 | .\" questions.
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| 23 | .\"
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| 24 | .\" Arch: generic |
| 25 | .\" Software: JDK 8 |
| 26 | .\" Date: 21 November 2013 |
| 27 | .\" SectDesc: Basic Tools |
| 28 | .\" Title: extcheck.1 |
| 29 | .\" |
| 30 | .if n .pl 99999 |
| 31 | .TH extcheck 1 "21 November 2013" "JDK 8" "Basic Tools" |
| 32 | .\" -----------------------------------------------------------------
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| 33 | .\" * Define some portability stuff
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| 36 | .\" http://bugs.debian.org/507673
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| 37 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 38 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 39 | .ie \n(.g .ds Aq \(aq
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| 40 | .el .ds Aq '
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| 41 | .\" -----------------------------------------------------------------
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| 42 | .\" * set default formatting
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| 44 | .\" disable hyphenation
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| 45 | .nh
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| 46 | .\" disable justification (adjust text to left margin only)
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| 47 | .ad l
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| 48 | .\" -----------------------------------------------------------------
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| 49 | .\" * MAIN CONTENT STARTS HERE *
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| 50 | .\" -----------------------------------------------------------------
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| michaelm | 5ac8c15 | 2012-03-06 20:34:38 +0000 | [diff] [blame] | 51 | |
| rgallard | b643545 | 2013-11-25 20:19:02 -0800 | [diff] [blame] | 52 | .SH NAME |
| 53 | extcheck \- Detects version conflicts between a target Java Archive (JAR) file and currently installed extension JAR files\&. |
| 54 | .SH SYNOPSIS |
| 55 | .sp |
| 56 | .nf |
| michaelm | 5ac8c15 | 2012-03-06 20:34:38 +0000 | [diff] [blame] | 57 | |
| rgallard | b643545 | 2013-11-25 20:19:02 -0800 | [diff] [blame] | 58 | \fBextcheck\fR [\fIoptions\fR] \fItargetfile\&.jar\fR |
| 59 | .fi |
| 60 | .sp |
| 61 | .TP |
| 62 | \fIoptions\fR |
| 63 | The command-line options\&. See Options\&. |
| 64 | .TP |
| 65 | \fItargetfile\&.jar\fR |
| 66 | The target JAR file against which the currently installed extension JAR files are compared to detect version conflicts\&. |
| 67 | .SH DESCRIPTION |
| 68 | The \f3extcheck\fR command checks a specified JAR file for title and version conflicts with any extensions installed in the Java SE SDK\&. Before installing an extension, you can use this utility to see whether the same or a more recent version of the extension is already installed\&. |
| 69 | .PP |
| 70 | The \f3extcheck\fR command compares the Specification-title and Specification-version headers in the manifest of the \f3targetfile\&.jar\fR file against the corresponding headers in all JAR files currently installed in the extension directory\&. By default, the extension directory is \f3jre/lib/ext\fR on Oracle Solaris and \f3\ejre\elib\eext\fR on Windows\&. The \f3extcheck\fR command compares version numbers in the same way as the \f3java\&.lang\&.Package\&.isCompatibleWith\fR method\&. |
| 71 | .PP |
| 72 | If no conflict is detected, then the return code is 0\&. |
| 73 | .PP |
| 74 | If the manifest of any JAR file in the extensions directory has the same \f3Specification-title\fR and the same or a newer \f3Specification-version\fR number, then a non-zero error code is returned\&. A non-zero error code is also returned when \f3targetfile\&.jar\fR does not have the \f3Specification-title\fR or \f3Specification-version\fR attributes in its manifest file\&. |
| 75 | .SH OPTIONS |
| 76 | .TP |
| 77 | -verbose |
| 78 | .br |
| 79 | Lists JAR files in the extension directory as they are checked\&. Additionally, manifest attributes of the target JAR file and any conflicting JAR files are also reported\&. |
| 80 | .TP |
| 81 | -J\fIoption\fR |
| 82 | .br |
| 83 | Passes \fIoption\fR to the Java Virtual Machine (JVM), where option is one of the options described on the reference page for the Java launcher\&. For example, \f3-J-Xms48m\fR sets the startup memory to 48 MB\&. See java(1)\&. |
| 84 | .SH SEE\ ALSO |
| 85 | .TP 0.2i |
| 86 | \(bu |
| michaelm | 5ac8c15 | 2012-03-06 20:34:38 +0000 | [diff] [blame] | 87 | jar(1) |
| rgallard | b643545 | 2013-11-25 20:19:02 -0800 | [diff] [blame] | 88 | .RE
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| 89 | .br
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| 90 | 'pl 8.5i
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| 91 | 'bp
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