Gwt how to import external gar?

[trust]

Gwt, how to import external jar? I have Exception No source code is available for type "my class"; did you forget to inherit a required module?

[Eranga]

Add the jar file in to the class path and import it in your application.

Are you working on any IDEs? Most of the IDEs do that for you.

[trust]

Ide Eclipse, i import import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;bu t i have exception

Compiling module com.Chart_Test
   Refreshing module from source
      Validating newly compiled units
         Removing units with errors
            [ERROR] Errors in 'file:/F:/Example%20JAVA/Chart_Test/src/com/client/Chart_Test.java'
               [ERROR] Line 14: No source code is available for type org.apache.xmlrpc.client.XmlRpcClientConfigImpl; did you forget to inherit a required module?
   Computing all possible rebind results for 'com.client.Chart_Test'
      Rebinding com.client.Chart_Test
         Checking rule <generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/>
            [ERROR] Unable to find type 'com.client.Chart_Test'
               [ERROR] Hint: Previous compiler errors may have made this type unavailable
               [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly