connectors/rocketmq-connect-doris/src/main/java/org/apache/rocketmq/connect/doris/util/ExpressionBuilder.java [560:570]:
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        public ExpressionBuilder of(Iterable<? extends T> objects) {
            for (T obj : objects) {
                if (first) {
                    first = false;
                } else {
                    append(delimiter);
                }
                append(obj, transform);
            }
            return ExpressionBuilder.this;
        }
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connectors/rocketmq-connect-jdbc/src/main/java/org/apache/rocketmq/connect/jdbc/util/ExpressionBuilder.java [296:306]:
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        public ExpressionBuilder of(Iterable<? extends T> objects) {
            for (T obj : objects) {
                if (first) {
                    first = false;
                } else {
                    append(delimiter);
                }
                append(obj, transform);
            }
            return ExpressionBuilder.this;
        }
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