RaigorJiang commented on code in PR #25036:
URL: https://github.com/apache/shardingsphere/pull/25036#discussion_r1161462371


##########
kernel/traffic/core/src/main/java/org/apache/shardingsphere/traffic/algorithm/traffic/segment/SQLRegexTrafficAlgorithm.java:
##########
@@ -41,8 +40,8 @@ public void init(final Properties props) {
         
ShardingSpherePreconditions.checkState(props.containsKey(REGEX_PROPS_KEY),
                 () -> new 
SegmentTrafficAlgorithmInitializationException(SQLRegexTrafficAlgorithm.class.getName(),
 String.format("%s cannot be null", REGEX_PROPS_KEY)));
         regex = Pattern.compile(props.getProperty(REGEX_PROPS_KEY));
-        
ShardingSpherePreconditions.checkState(Strings.isNullOrEmpty(String.valueOf(regex)),
-                () -> new 
SegmentTrafficAlgorithmInitializationException(SQLRegexTrafficAlgorithm.class.getName(),
 "regex must be not null or empty"));
+        
ShardingSpherePreconditions.checkState(!Strings.isNullOrEmpty(String.valueOf(regex)),

Review Comment:
   Hi @Netter99 @Pace2Car 
   I'm wondering if the result of `props.getProperty(REGEX_PROPS_KEY)` is null, 
will `Pattern.compile` throw an exception?



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