## jarlib-display

### Description

Display the "Optional Package" and "Package Specification" information contained within the specified jars.

Note that this task works with extensions as defined by the "Optional Package" specification. For more information about optional packages, see the document Optional Package Versioning in the documentation bundle for your Java2 Standard Edition package, in file `guide/extensions/versioning.html` or online at http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html.

See the Extension and ExtensionSet documentation for further details

### Parameters

Attribute | Description | Required
file | The file to display extension information about. | No, but one of file or fileset must be present.

### Parameters specified as nested elements

#### fileset

FileSets contain list of files to display Extension information about.

### Examples

Display Extension info for a single file

      <jarlib-display file="myfile.jar">

Display Extension info for a fileset

      <jarlib-display>
        <fileset dir="lib">
          <include name="*.jar"/>
        </fileset>
      </jarlib-display>

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