Java Network Launching Protocol (JNLP)
The file extension JNLP stands for Java Network Launching Protocol. This file extension is created for Java Web Start (Sun Microsystems, Inc.). The file with the extension JNLP functions as an XML document used for managing and launching Java programs on the Web or a standalone application through a network. A good registry cleaner supports the memory allocation of the files with the extension JNLP throughout the online documentation of the XML file.
The following are the basic elemental contents of a file with the JNLP extension:
- Spec Attribute - should be 1.0 or higher to run with this version. The given value is “1.0+”. Hence, the file omits this element.
- Codebase Attribute - every virtual URL stated in HREF attributes in the JNLP file uses this URL as a base.
- HREF Attribute - a URL that searches the location of the file with the JNLP extension. Java Web Start needs this feature to set sequentially for the Application Manager to contain the application.
Information Elements of a file with the JNLP file extension are as follows:
- Title Element - title of the application.
- Vendor Element - vendor name of the application.
- Homepage Element – consists of a lone HREF attribute. It locates homepage URL for the Application. The Application Manager uses this to direct the user to a Web page that has more information about the application.
- Description Element – This is a brief statement concerning the application depending on the preference of the user. Description Element defines the use of the description. It has one of the following significances:
One-line - If an application indication appears on a single row in a register or a chart, this element applies.
Short - If a display of a reference to the application occurs in a situation where there is room for a paragraph, this category applies.Tooltip - If a situation of the application appears in a tooltip, it uses this description.
- Icon Element - consists of an HTTP URL to an illustration file in JPEG or GIF format. The file extension JNLP applies this icon to signify the application throughout the launch when the Java Web Start executes to present the application to the user as desktop shortcuts or in the Application Manager.
The file extension JNLP identifies merely one description element of every class. A good registry cleaner sorts out a depiction element with no kind and applies as a default assessment. Hence, if Java Web Start requires a depiction of kind short not described in the JNLP file, then it uses the format from the description with no attribute. All descriptions enclose plain text.
When a file with the JNLP extension does not include any icon illustration, the splash image will contain an application’s vendor and title, taken from the file. The JNLP file syntax provided by Sun Microsystems is a guide for software developers to be used as reference for the syntax used with JNLP files.