Name
extcheck — JAR Version Conflict Utility
Synopsis
extcheck [-verbose] jarfile
Description
extcheck checks
to see if the extension contained in the specified
jarfile
(or a newer version of that
extension) has already been installed on the system. It does this by
reading the Specification-Title
and
Specification-Version
manifest attributes from the
specified jarfile
and from all of the JAR
files found in the system extensions directory.
extcheck is designed for use in automated
installation scripts. Without the -verbose
option,
it does not print the results of its check. Instead, it sets its exit
code to 0 if the specified extension does not conflict with any
installed extensions and can be safely installed. It sets its exit
code to a nonzero value if an extension with the same name is already
installed and has a specification version number equal to or greater
than the version of the specified file.
Options
-
-verbose
Lists the installed extensions as they are checked and displays the results of the check.
See also
jar
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