Problem with Google Calendar API Java Library
<p>I try to use Google Calendar API Java library, and copy this code from example: </p>

<pre><code>CalendarService myService = new CalendarService("abc");
try {
    myService.setUserCredentials("авaea@gmail.com", "1111223");
} catch (AuthenticationException e) {
    // TODO Auto-generated catch block

}
</code></pre>

<p>I downloaded library from source: gdata-client-1.0,  gdata-calendar-2.0, but I got errors: </p>

<pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/collect/Maps
    at com.google.gdata.wireformats.AltRegistry.&lt;init&gt;(AltRegistry.java:118)
    at com.google.gdata.wireformats.AltRegistry.&lt;init&gt;(AltRegistry.java:100)
    at com.google.gdata.client.Service.&lt;clinit&gt;(Service.java:555)
    at Test.main(Test.java:29)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 4 more
</code></pre>

<p>Where can I do mistake? </p>
