Issues

• [BUG] testBasicBUFNCpu hits java.util.concurrent.TimeoutException in submodule sync

  ? - Needs Triagebug
  NVIDIA/cudf-spark-jni#5228 · Filter by author ttnghia opened on Oct 1, 2026

• [FEA] Move java compatible time zone translations to cuDF

  tech debt
  NVIDIA/cudf-spark-jni#5184 · Filter by author revans2 opened on Sep 22, 2026
  1

• [FEA] Adopt GoogleTest container matchers in native tests

  tech debttest
  NVIDIA/cudf-spark-jni#5169 · Filter by author thirtiseven opened on Sep 20, 2026

• [FEA] Follow up on protobuf offset/length representation and location providers

  tech debt
  NVIDIA/cudf-spark-jni#5158 · Filter by author thirtiseven opened on Sep 17, 2026
  1

  

• [BUG] GPU to_json emits non-Spark-compatible finite Float/Double strings

  bug
  NVIDIA/cudf-spark-jni#5118 · Filter by author wjxiz1992 opened on Sep 14, 2026
  1

  

• [BUG] Do not use Java assertions for public API argument validation

  bug
  NVIDIA/cudf-spark-jni#5116 · Filter by author gerashegalov opened on Sep 14, 2026

• [BUG] Synchronize GpuTimeZoneDB readers with shutdown

  bug
  NVIDIA/cudf-spark-jni#5115 · Filter by author gerashegalov opened on Sep 14, 2026

• [BUG] Clean up native handles when Java wrapper construction fails

  bug
  NVIDIA/cudf-spark-jni#5114 · Filter by author gerashegalov opened on Sep 14, 2026

• [FEA] Build and merge portable Roaring64 deletion vectors on GPU

  performance
  NVIDIA/cudf-spark-jni#5082 · Filter by author res-life opened on Sep 4, 2026
  

• [BUG] get_json_object retry path races malformed and following rows

  bug
  NVIDIA/cudf-spark-jni#5079 · Filter by author gerashegalov opened on Sep 3, 2026
  

• [FEA] Add an api convert a roaring bitmap to a long column vector.

  feature request
  NVIDIA/cudf-spark-jni#5036 · Filter by author liurenjie1024 opened on Aug 24, 2026

• [BUG] Singular protobuf message occurrences use last-one-wins instead of merge semantics

  bug
  NVIDIA/cudf-spark-jni#4983 · Filter by author thirtiseven opened on Aug 11, 2026
  

• [BUG] Nested protobuf validation misses required parents and can misattribute malformed rows

  bug
  NVIDIA/cudf-spark-jni#4982 · Filter by author thirtiseven opened on Aug 11, 2026
  

• [BUG] Match Spark CPU handling of unknown closed-enum values by message depth

  bug
  NVIDIA/cudf-spark-jni#4981 · Filter by author thirtiseven opened on Aug 11, 2026
  

• [BUG] Align protobuf wire parsing and string decoding with Spark CPU

  bug
  NVIDIA/cudf-spark-jni#4980 · Filter by author thirtiseven opened on Aug 11, 2026
  

• [FEA] Upgrade to CUDA 13.4 in 26.10

  feature request
  NVIDIA/cudf-spark-jni#4902 · Filter by author sameerz opened on Jul 28, 2026
  1

  

• [BUG] get_json_object diverges from Spark on many input classes

  bug
  NVIDIA/cudf-spark-jni#4889 · Filter by author ttnghia opened on Jul 24, 2026
  

• [FEA] Add a single-pass parser for Spark day-time interval strings

  ? - Needs Triageenhancementperformancereliabilitytech debt
  NVIDIA/cudf-spark-jni#4821 · Filter by author wjxiz1992 opened on Jul 15, 2026

• Eliminate hard-coded 128 KiB chunk in HostMemoryBuffer.copyFromStream

  ? - Needs Triageperformance
  Task

  NVIDIA/cudf-spark-jni#4768 · Filter by author gerashegalov opened on Jun 30, 2026

• [FEA] Per-row schema-mismatch diagnostic for read_json_with_diagnostics

  NVIDIA/cudf-spark-jni#4645 · Filter by author wjxiz1992 opened on May 28, 2026
  3

  

• [FEA] [Java] Deprecate the use of Aggregation64Utils in favour of cudf::SUM_WITH_OVERFLOW

  tech debt
  NVIDIA/cudf-spark-jni#4632 · Filter by author mythrocks opened on May 26, 2026
  2

• [BUG] from_json: nested schema-category mismatch should null depth-1 ancestor (SPARK-33134 parity)

  bug
  NVIDIA/cudf-spark-jni#4535 · Filter by author wjxiz1992 opened on May 11, 2026
  1

  

• [FEA] Add more stricter compiler warnings -Wshadow, -Wnon-virtual-dtor, -Woverloaded-virtual

  enhancementfeature requestgood first issue
  NVIDIA/cudf-spark-jni#4497 · Filter by author ttnghia opened on Apr 28, 2026

• [Follow-up] Evaluate using pinned memory for cudaMemcpyAsync in bloom_filter.cu

  NVIDIA/cudf-spark-jni#4407 · Filter by author mythrocks opened on Mar 21, 2026

• [BUG] JNI unit tests are experiencing significant perf regression with cuda 13.1.0 w/ -DUSE_SANITIZER=ON

  bug
  NVIDIA/cudf-spark-jni#4127 · Filter by author pxLi opened on Jan 7, 2026
  12