* progress of operations.
 *
 * <p>This listener forwards nothing unless it receives periodic {@link UpdateNowEvent} clock events.</p>
 */
public class GroupingProgressLogEventGenerator implements OutputEventListener {
    private static final long HIGH_WATERMARK_FLUSH_TIMEOUT = TimeUnit.SECONDS.toMillis(30);
    private static final long LOW_WATERMARK_FLUSH_TIMEOUT = TimeUnit.SECONDS.toMillis(2);

Class <org.gradle.internal.logging.sink.GroupingProgressLogEventGenerator$OperationGroup> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (GroupingProgressLogEventGenerator.java:0)
Class <org.gradle.internal.logging.sink.GroupingProgressLogEventGenerator$OperationState> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (GroupingProgressLogEventGenerator.java:0)