am 6b492e78: Merge "Clean up Javadocs for UEventObserver"

import java.util.HashMap;

/**

 * UEventObserver is an abstract class that receives UEvent's from the kernel.<p>

 * UEventObserver is an abstract class that receives UEvents from the kernel.<p>

 *

 * Subclass UEventObserver, implementing onUEvent(UEvent event), then call

 * startObserving() with a match string. The UEvent thread will then call your

 * onUEvent() method when a UEvent occurs that contains your match string.<p>

 *

 * Call stopObserving() to stop receiving UEvent's.<p>

 * Call stopObserving() to stop receiving UEvents.<p>

 *

 * There is only one UEvent thread per process, even if that process has

 * multiple UEventObserver subclass instances. The UEvent thread starts when

    }

    /**

     * Begin observation of UEvent's.<p>

     * Begin observation of UEvents.<p>

     * This method will cause the UEvent thread to start if this is the first

     * invocation of startObserving in this process.<p>

     * Once called, the UEvent thread will call onUEvent() when an incoming

    }

    /**

     * End observation of UEvent's.<p>

     * End observation of UEvents.<p>

     * This process's UEvent thread will never call onUEvent() on this

     * UEventObserver after this call. Repeated calls have no effect.

     */