Javadoc doesn't like reference to other module.

Author: brian-brazil

simpleclient/src/main/java/io/prometheus/client/Gauge.java

@@ -164,7 +164,7 @@ public void setToCurrentTime() {
      * Call {@link Timer#setDuration} at the end of what you want to measure the duration of.
      * <p>
      * This is primarily useful for tracking the durations of major steps of batch jobs,
-     * which are then pushed to a {@link io.prometheus.client.exporter.PushGateway}.
+     * which are then pushed to a PushGateway.
      * For tracking other durations/latencies you should usually use a {@link Summary}.
      */
     public Timer startTimer() {