3.1.0-bug

distributed-print-business/src/main/java/com/qmth/distributed/print/business/service/impl/DataSyncReportServiceImpl.java

@@ -24,6 +24,7 @@ import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;