To import a JAR or Zip file:
Create a JAR or Zip file if one is not provided for you.
Make sure the JAR or Zip file is in the classpath.
Create a library for the JAR or Zip file.
You can now import the package into your project.
In the Workspace pane of the Navigator, right-click the project node and select Import Business Components.
The Import Business Component XML file from jar or zip file dialog box opens.
In the Jar and Zip files scrolling list box, select the file that contains the components you want to customize.
When you select the file, its contents are displayed in the XML Entries scrolling list box beneath it.
In the XML Entries scrolling list box, select the package's XML file. Typically, it will have a name of the form package_name.xml.
Click OK to import the package.
The dialog box closes and the package containing the existing components is added to the project. Notice that the components are added in read-only mode. If you open any of the components in the wizards, you will notice that many of the entries are grayed-out and not editable. Although the components themselves are not editable, they can be used as the base for customized components.