Issues

• Feature Request: Highly optimized custom String storage

  jankotek/mapdb#1065 · Filter by author fandbsoft opened on May 7, 2026

• Switch from org.lz4:lz4-java to at.yawk.lz4:lz4-java due to CVE-2025-12183 & CVE-2025-66566.

  jankotek/mapdb#1064 · Filter by author mjschwaiger opened on Dec 3, 2025
  1

• Map value keeps recreating

  jankotek/mapdb#1063 · Filter by author VinceCastro opened on Sep 26, 2025
  1

• custom key serializer is invalid

  jankotek/mapdb#1062 · Filter by author 654894017 opened on Sep 17, 2025

• MapDB 3.0.8 breaks Java 11 compatibility due to eclipse-collections version range

  jankotek/mapdb#1061 · Filter by author ankushraghav opened on Aug 25, 2025
  1

• IndexTreeList java.lang.IndexOutOfBoundsException calling addFirst(E e) on an empty list

  jankotek/mapdb#1059 · Filter by author boiten opened on Jul 30, 2025

• SortedTableMap fails with large datasets (30GB CSV) AssertionError

  jankotek/mapdb#1057 · Filter by author jankod opened on Feb 23, 2025

• Request for new release

  jankotek/mapdb#1055 · Filter by author doppelrittberger opened on Dec 8, 2024
  6

• position beyond chunk 112

  jankotek/mapdb#1053 · Filter by author wxpid1 opened on Oct 21, 2024

• java.lang.ArrayIndexOutOfBoundsException: Index 21 out of bounds for length 21

  jankotek/mapdb#1052 · Filter by author wxpid1 opened on Oct 21, 2024
  1

• Does it support multi-layer map nesting?

  jankotek/mapdb#1051 · Filter by author wxq851685279 opened on Sep 4, 2024

• Guava dependancy conflict

  jankotek/mapdb#1050 · Filter by author Buwaka opened on Aug 19, 2024

• Blocking issue in dependency

  jankotek/mapdb#1049 · Filter by author subashsakthivel opened on Jul 18, 2024

• Data corruption when using expireAfterCreate() and expireOverflow() with HashMapMaker

  jankotek/mapdb#1046 · Filter by author igalkin opened on Mar 27, 2024

• API handle to get version of MapDB

  jankotek/mapdb#1045 · Filter by author lhaeger opened on Feb 14, 2024
  2

• Trying to understand how it works

  jankotek/mapdb#1044 · Filter by author siddhsql opened on Feb 9, 2024

• IndexOutOfBoundsException on DB.commit()

  jankotek/mapdb#1043 · Filter by author jordibuj opened on Feb 8, 2024

• When I execute db.commit() I get an alarm:Could not delete file:

  jankotek/mapdb#1041 · Filter by author tianyawenke opened on Feb 5, 2024
  1

• Vector Collection

  jankotek/mapdb#1040 · Filter by author JusticeN opened on Jan 31, 2024

• HTreeMap uses more direct memory than specified in HashMapMaker.expireStoreSize()

  jankotek/mapdb#1039 · Filter by author igalkin opened on Jan 2, 2024

• compact is not working for WAL storage

  jankotek/mapdb#1037 · Filter by author kovsharov opened on Dec 25, 2023

• org.mapdb.DBException$DataCorruption: headPrev error

  jankotek/mapdb#1036 · Filter by author MikeyCarter opened on Dec 22, 2023

• Retrieving data after rollback will throw an exception

  jankotek/mapdb#1034 · Filter by author montaro2017 opened on Nov 23, 2023

• MapDB is not reducing its size when all messages get deleted

  jankotek/mapdb#1033 · Filter by author prasaddige opened on Nov 20, 2023
  3

• Using Bloom Filters to optimize overflowing HTreeMap reads

  jankotek/mapdb#1032 · Filter by author Aravind-Suresh opened on Sep 15, 2023