flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/xa/XaSinkStateSerializer.java [146:156]:
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        @Override
        public void writeSnapshot(DataOutputView out) throws IOException {
            super.writeSnapshot(out);
            out.writeInt(VERSION);
        }

        @Override
        public void readSnapshot(int readVersion, DataInputView in, ClassLoader classLoader)
                throws IOException {
            super.readSnapshot(readVersion, in, classLoader);
            in.readInt();
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flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/xa/XidSerializer.java [127:137]:
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        @Override
        public void writeSnapshot(DataOutputView out) throws IOException {
            super.writeSnapshot(out);
            out.writeInt(VERSION);
        }

        @Override
        public void readSnapshot(int readVersion, DataInputView in, ClassLoader classLoader)
                throws IOException {
            super.readSnapshot(readVersion, in, classLoader);
            in.readInt();
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