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Empty ListVector and LargeListVector can expose offset buffers with writerIndex greater than capacity

Status: Open.

#1194 In apache/arrow-java;

· prashanthbdremio opened on Jun 23, 2026

[Java] BaseVariableWidthViewVector.handleSafe under-allocates the view buffer for empty (zero-length) values → IndexOutOfBoundsException

Status: Open.

#1190 In apache/arrow-java;

· liming-ye opened on Jun 16, 2026

[CI] Reduce CI test usage

Type: enhancementNew feature or requestNew feature or request

Status: Open.

#1188 In apache/arrow-java;

· xborder opened on Jun 15, 2026

·  

20.0.0

[Java] Incorrect size computed for var-width vectors with non-zero start offsets when appending them

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1179 In apache/arrow-java;

· jordepic opened on Jun 9, 2026

·  

20.0.0

[Java] DictionaryEncoder doesn't crash when decoding index outside of Dictionary

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1158 In apache/arrow-java;

· jakobhok-neo4j opened on May 19, 2026

[Java] Improve VectorSchemaRoot.getVector(String name) lookup performance

Type: enhancementNew feature or requestNew feature or request

Status: Open.

#1148 In apache/arrow-java;

· jjbskir opened on May 13, 2026

Managing ownership in VectorSchemaRoot#addVector, recent changes miss the main fault.

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1142 In apache/arrow-java;

· John-W-Lewis opened on May 10, 2026

Consume COLUMN_DEF in JDBC Flight Driver

Type: enhancementNew feature or requestNew feature or request

Status: Open.

#1134 In apache/arrow-java;

· Verest opened on May 4, 2026

·  

20.0.0

[FlightSQL] Statement.execute(String) can leak server prepared-statement handles when reused

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1129 In apache/arrow-java;

· xborder opened on Apr 27, 2026

UnionListReader.setPosition throws IOOBE on a post-IPC empty List

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1125 In apache/arrow-java;

· bodduv opened on Apr 21, 2026

·  

20.0.0

[Flight SQL] ClosePreparedStatement uses original handle instead of updated handle from server

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1117 In apache/arrow-java;

· erick-alcachofa opened on Apr 16, 2026

[IPC][ZSTD] Compressed buffer prefix can be written as 0 while ZSTD frame has non-zero content size

Type: bugSomething isn't workingSomething isn't working

Status: Open.

#1116 In apache/arrow-java;

· m8928 opened on Apr 15, 2026