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Description

JApplication is a task for assembling native launchers of Java applications for a number of target platforms. Currently supports native launchers for Mac and Windows operating systems and also a "java launcher" - a single jar file that can be run via "java -jar file.jar".

OS Strategies

  • Java: builds a single runnable jar file out of a collection of jar files.
  • Mac: builds a XYZ.app bundle that includes all jar dependencies.
  • Windows: Performs a Java build and creates an NSIS launcher for the runnable jar. Both ".exe" and ".jar" files are required to be in the same directory for the launcher to work.

OS Requirements

  • Mac launcher can be built on Mac only, as it requires a JavaApplicationStab file.
  • Windows launcher can be built on Windows only.
  • Java launcher can be assembled on any platform and has no prerequisites.

Parameters

Attribute

Description

Required

Platforms

name

The name of the application without OS-specific extension

yes

 

mainClass

Main Java class

yes

 

os

A family of operating systems. Currently supported values are "mac", "windows" and "java"

no (will use build machine os if ommitted; if the os is not supported, will use "java")

 

destDir

A destination directory where the application launcher should be installed

no (will use "${basedir}" if omitted)

 

longName

An optional string identifying the application human-readable name. If not specified, "name" is used.

no

 

icon

Platform-specific icon file (usually "*.ico" on Windows and "*.icns" on Mac)

no

mac,windows

jvm

Minimal version of the Java Virtual machine required.

no (default is "1.4+")

mac

jvmOptions

Optional parameters to pass to the JVM, such as memory settings, etc.

no

mac,windows

version

Product version string

no (default 0.0)

mac

Nested Elements

lib

The FileSet specifying jar files to be included in the application.

Examples

Loading task:

<taskdef name="japplication" classname="org.objectstyle.woproject.ant.JApplication"/>

Building a Windows application, resulting in "MyApp.exe" launcher that starts "MyApp.jar" file.

<japplication name="MyApp" destDir="dist" mainClass="org.example.Main" os="windows">
   <lib dir="lib" includes="**/*.jar"/>
</japplication>
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