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README.md

@@ -254,7 +254,7 @@ Please refer to [Wiki](https://github.com/landawn/AbacusUtil/wiki), [Introductio
 
 
 ## Recommended Java programming libraries/frameworks:
-[lombok](https://github.com/rzwitserloot/lombok), [Guava](https://github.com/google/guava), [Abacus-StreamEx](https://github.com/landawn/streamex), [Kyro](https://github.com/EsotericSoftware/kryo), [snappy-java](https://github.com/xerial/snappy-java), [lz4-java](https://github.com/lz4/lz4-java), [Caffeine](https://github.com/ben-manes/caffeine), [Ehcache](http://www.ehcache.org/), [Chronicle-Map](https://github.com/OpenHFT/Chronicle-Map), [Sharding-JDBC](https://github.com/apache/incubator-shardingsphere), [hppc](https://github.com/carrotsearch/hppc), [fastutil](https://github.com/vigna/fastutil) ...[awesome-java](https://github.com/akullpp/awesome-java)
+[lombok](https://github.com/rzwitserloot/lombok), [Guava](https://github.com/google/guava), [Abacus-StreamEx](https://github.com/landawn/streamex), [Kyro](https://github.com/EsotericSoftware/kryo), [snappy-java](https://github.com/xerial/snappy-java), [lz4-java](https://github.com/lz4/lz4-java), [Caffeine](https://github.com/ben-manes/caffeine), [Ehcache](http://www.ehcache.org/), [Chronicle-Map](https://github.com/OpenHFT/Chronicle-Map), [mapstruct](https://github.com/mapstruct/mapstruct), [Sharding-JDBC](https://github.com/apache/incubator-shardingsphere), [hppc](https://github.com/carrotsearch/hppc), [fastutil](https://github.com/vigna/fastutil) ...[awesome-java](https://github.com/akullpp/awesome-java)
 
 ## Recommended Java programming tools:
 [Spotbugs](https://github.com/spotbugs/spotbugs), [JaCoCo](https://www.eclemma.org/jacoco/)...