jsr-56 - Java Community Process Program

Only one description element of each kind can be specified. A description element without a kind is used
as a default value. Thus, if a JNLP Client wants a description of kind short, and it is not specified in the
JNLP file, then the text from the description without an attribute is used.
All descriptions contains plain text. No formatting, such as, e.g., HTML tags are supported.
icon element: The icon can be used by a JNLP Client to identify the application to the user.
The optional width and height attributes can be used to indicate the resolution of the images. Both are the
measured in pixels.
The optional depth attribute can be used to describe the color depth of the image.
The optional kind attribute can be used to indicate the use of the icon, such as default, selected, disabled,
and rollover.
The optional size attribute can be used to specify the download size of the icon in bytes.
The JNLP Client may assume that a typical JNLP file will have at least an icon of 32x32 pixels in 256
colors of the default kind. The image file can be in either GIF or JPEG format. Its location is specified as
described in Section 3.4, and it is downloaded using the protocols described in Section 6.
offline-allowed element: The optional offline-allowed element indicates if the application can work
while the client system is disconnected from the network. The default is that an application only works if
the client system is online.
This can be use by a JNLP Client to provide a better user experience. For example, the offline
allowed/disallowed information can be communicated to the user, it can be used to prevent launching an
application that is known not to work when the system is offline, or it can be completely ignored by the
JNLP Client. An application cannot assume that it will never be launched offline, even if this element is
not specified.
3.6 APPLICATION DESCRIPTORS
An application descriptor either describes an application or an Applet.
3.6.1 APPLICATION DESCRIPTOR FOR AN APPLICATION
A JNLP file is an application descriptor if the application-desc element is specified.
The application-desc element contains all information needed to launch an application, given the
resources described by the resources element. For example:
Arg1
Arg2
main-class attribute: The name of the class containing the public static void
main(String[]) method of the application. This attribute can be omitted if the main class can be
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