Mac OS X Developer Tools Manual Page For java

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java_home(1) java_home(1) NAME java_home - return a value for $JAVA_HOME SYNOPSIS /usr/libexec/java_home [options] DESCRIPTION The java_home command returns a path suitable for setting the JAVA_HOME environment variable. It determines this path from the user's preferred Java in the Java Preferences application. Additional constraints may be provided to filter the list of JVMs available. By default, if no constrants match the available list of JVMs, the default order is used. The path is printed to standard output. OPTIONS -v or --version version Filters the returned JVMs by the major platform version in "JVMVersion" form. Example ver-sions: versions: sions: "1.5+", or "1.6*". -a or --arch architecture Filters the returned JVMs by the architecture they support. Example architectures: "i386", "x86_64", or "ppc". -d or --datamodel datamodel Filters the returned JVMs capable of running in 32 or 64-bit mode. Supported datamodels: "-d32" and "-d64". Specifying a datamodel is synonymous with specifying a particular architec-ture. architecture. ture. -t or --task task Selects from the list of JVMs which can run a specific task. The order of each of these lists is set by the Java Preferences application. Supported tasks: "Applets", "Applications", "Web-Start", "WebStart", Start", and "CommandLine". The default task is "CommandLine". -F or --failfast Immediatly fails when filters return no JVMs; does not print out the path to the default $JAVA_HOME. -X or --xml Prints the list of selected JVMs and associated properties as an XML plist to stdout. -V or --verbose Prints the matching list of JVMs and architectures to stderr. -h or --help Brief usage information. USAGE /usr/libexec/java_home helps users set a $JAVA_HOME in their login rc files, or provides a way for command-line Java tools to use the most appropriate JVM which can satisfy a minimum version or archi-tecture architecture tecture requirement. Usage for bash-style shells: $ export JAVA_HOME=`/usr/libexec/java_home` Usage for csh-style shells: % setenv JAVA_HOME `/usr/libexec/java_home` 30 March 2009 java_home(1)

This manual page is part of Xcode Tools version 3.2

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