What's Changed

• feat(spec): remove list/map header from type meta spec by @chaokunyang in https://github.com/apache/incubator-fury/pull/1590
• chore(java): move tests to meta/reflect pkg by @chaokunyang in https://github.com/apache/incubator-fury/pull/1592
• fix(java): compatible low version guava(#1593) by @MrChang0 in https://github.com/apache/incubator-fury/pull/1594
• perf(java): Reduce performance regression caused by deleteCharAt by @LiangliangSui in https://github.com/apache/incubator-fury/pull/1591
• feat(java): type meta encoding for java by @chaokunyang in https://github.com/apache/incubator-fury/pull/1556
• fix(java): fix getClassDef thead safety by @chaokunyang in https://github.com/apache/incubator-fury/pull/1597
• fix(java): skip register unexisted skip class by @chaokunyang in https://github.com/apache/incubator-fury/pull/1601
• chore(java): make enum serializer as an upper level class by @chaokunyang in https://github.com/apache/incubator-fury/pull/1598
• fix(java): make slf4j provided by @chaokunyang in https://github.com/apache/incubator-fury/pull/1605
• fix(java): clear serializer for collection/map by @chaokunyang in https://github.com/apache/incubator-fury/pull/1606
• feat(sepc): update type meta field info spec by @chaokunyang in https://github.com/apache/incubator-fury/pull/1603
• fix(java): fix TypeRef getSubType by @chaokunyang in https://github.com/apache/incubator-fury/pull/1608
• feat(javascript): add data to description util by @bytemain in https://github.com/apache/incubator-fury/pull/1609
• refactor(java): Remove Guava's Collection usages by @Munoon in https://github.com/apache/incubator-fury/pull/1611
• feat(java): Support CopyOnWriteArrayListSerializer by @MrChang0 in https://github.com/apache/incubator-fury/pull/1613
• chore: Fury header add language field by @LiangliangSui in https://github.com/apache/incubator-fury/pull/1612
• refactor(java): Remove Guava's Concurrency utils usages by @Munoon in https://github.com/apache/incubator-fury/pull/1614
• fix(java): fix fastutil Object2ObjectOpenHashMap serialization by @chaokunyang in https://github.com/apache/incubator-fury/pull/1618
• feat(java): add blocked stream utils by @chaokunyang in https://github.com/apache/incubator-fury/pull/1617
• feat(go/java): Add ASCII check before meta string encoding by @jasonmokk in https://github.com/apache/incubator-fury/pull/1620
• feat(java): register old version guava collect by @MrChang0 in https://github.com/apache/incubator-fury/pull/1622
• feat(java): support deserialization ignoreEnumDeserializeError by @157152688 in https://github.com/apache/incubator-fury/pull/1623
• feat(java): add set serializer for concurrent set by @MrChang0 in https://github.com/apache/incubator-fury/pull/1616
• feat(java): add custom serializer register in case of special serializer ctr by @MrChang0 in https://github.com/apache/incubator-fury/pull/1625
• fix(java): subclass without fields will encode superclass by @MrChang0 in https://github.com/apache/incubator-fury/pull/1626
• refactor(java): replace Guava's string utility methods with own implementation by @Munoon in https://github.com/apache/incubator-fury/pull/1624
• fix(java): ThreadPoolFury#factoryCallback don't work when create new classLoaderFuryPooled by @MrChang0 in https://github.com/apache/incubator-fury/pull/1628
• fix(go/java): Enhance ASCII check in meta string encoding by @jasonmokk in https://github.com/apache/incubator-fury/pull/1631
• chore(java): rename deserializeUnexistentEnumValueAsNull to deserializeNonexistentAsNull by @chaokunyang in https://github.com/apache/incubator-fury/pull/1634
• chore(java): remove gpg pinentry-mode by @chaokunyang in https://github.com/apache/incubator-fury/pull/1636
• fix(java): fix wildcard capturer capture NullPointerException by @chaokunyang in https://github.com/apache/incubator-fury/pull/1637
• fix(java): fix abstract collection elems same type serialization by @chaokunyang in https://github.com/apache/incubator-fury/pull/1641
• feat(java): remove soft/weak ref values from thread safe fury by @chaokunyang in https://github.com/apache/incubator-fury/pull/1639

New Contributors

• @MrChang0 made their first contribution in https://github.com/apache/incubator-fury/pull/1594
• @jasonmokk made their first contribution in https://github.com/apache/incubator-fury/pull/1620
• @157152688 made their first contribution in https://github.com/apache/incubator-fury/pull/1623

Full Changelog: https://github.com/apache/incubator-fury/compare/v0.5.0...v0.5.1-rc2