Fix HeartbeatException javadoc
diff --git a/core/src/main/java/com/datastax/oss/driver/api/core/connection/HeartbeatException.java b/core/src/main/java/com/datastax/oss/driver/api/core/connection/HeartbeatException.java
index 079f2e4..3550533 100644
--- a/core/src/main/java/com/datastax/oss/driver/api/core/connection/HeartbeatException.java
+++ b/core/src/main/java/com/datastax/oss/driver/api/core/connection/HeartbeatException.java
@@ -16,6 +16,8 @@
package com.datastax.oss.driver.api.core.connection;
import com.datastax.oss.driver.api.core.DriverException;
+import com.datastax.oss.driver.api.core.retry.RetryPolicy;
+import com.datastax.oss.driver.api.core.session.Request;
import java.net.SocketAddress;
/**
@@ -23,8 +25,8 @@
*
* <p>Heartbeat queries are sent automatically on idle connections, to ensure that they are still
* alive. If a heartbeat query fails, the connection is closed, and all pending queries are aborted.
- * Depending on the retry policy, the heartbeat exception can either be rethrown directly to the
- * client, or the driver tries the next host in the query plan.
+ * The exception will be passed to {@link RetryPolicy#onRequestAborted(Request, Throwable, int)},
+ * which decides what to do next (the default policy retries the query on the next node).
*/
public class HeartbeatException extends DriverException {
