kezhuw commented on code in PR #2206:
URL: https://github.com/apache/zookeeper/pull/2206#discussion_r1818339448


##########
zookeeper-jute/src/main/java/org/apache/jute/compiler/JRecord.java:
##########
@@ -767,4 +780,30 @@ public static String getCsharpFQName(String name) {
         }
         return fQName.toString();
     }
+
+    protected String getRecordComments() {
+        if (mRecordToken == null || mRecordToken.specialToken == null) {
+            return null;
+        }
+
+        StringJoiner joiner = new StringJoiner("\n * ", "/**\n * ", "\n */\n");
+        Token tmpTkn = mRecordToken.specialToken;
+        while (tmpTkn.specialToken != null) {
+            tmpTkn = tmpTkn.specialToken;
+        }
+
+        while (tmpTkn != null) {
+            String image = tmpTkn.image.trim();
+            tmpTkn = tmpTkn.next;
+            if (image.startsWith("//")) {

Review Comment:
   The capture does not shaped well for directly usage. I tasted the following 
capture, and it captured a complete line comment. This way we can output 
whatever it captured without post work.
   
   ```
   SPECIAL_TOKEN :
   {
     <SINGLE_LINE_COMMENT: "//" (~["\n","\r"])* ("\n"|"\r"|"\r\n")>
   }
   ```
   
   See also https://javacc.github.io/javacc/tutorials/token-manager.html



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