Corrected string check for emptiness.

087d989f · shtykh_roman · 6b7d206f · 087d989f
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tools/src/main/java/org/apache/rocketmq/tools/command/stats/StatsAllSubCommand.java ...ache/rocketmq/tools/command/stats/StatsAllSubCommand.java +1 -1

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--- a/tools/src/main/java/org/apache/rocketmq/tools/command/stats/StatsAllSubCommand.java
+++ b/tools/src/main/java/org/apache/rocketmq/tools/command/stats/StatsAllSubCommand.java
@@ -189,7 +189,7 @@ public class StatsAllSubCommand implements SubCommand {
                    continue;
                }

-                if (selectTopic != null && selectTopic != "" && !topic.equals(selectTopic)) {
+                if (selectTopic != null && !selectTopic.isEmpty() && !topic.equals(selectTopic)) {
                    continue;
                }