DocumentNodeStore should refuse checkpoint calls after disposal
Use individual imports instead of wildcard
@@ -122,7 +122,12 @@ import org.apache.jackrabbit.oak.stats.Clock;
import org.hamcrest.number.OrderingComparison;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
-import org.junit.*;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
