Obfuscation map

Obfuscation maps are Proguard mappings from old (original) names to new (obfuscated) names for classes and class members that have been renamed. They have been exported in the client.json for every snapshot since 19w36a, and the client.json for 1.14.4 has been updated slightly after 19w36a's release to include obfuscation maps as well.

Usage

The obfuscation maps are, by design, to remap obfuscated stack traces (as in crash reports) to readable stack traces.

Dinnerbone and Adrian Östergård have suggested that the obfuscation maps may make modding easier. Searge has implied that the obfuscation maps can replace certain third-party programs such as the Mod Coder Pack.

Third party usages

The obfuscation maps include enough information to deobfuscate Minecraft for decompilation. Third-party programs may exist for this purpose.

According to the License, such decompiled source code is restricted to internal and reference use.

License

Every obfuscation map file starts with a line indicating the license of the maps.

# (c) 2019 Microsoft Corporation.  All rights reserved.  This information is provided "as-is" and you bear the risk of using it. This information does not provide you with any legal rights to any intellectual property in any Microsoft product. You may copy and use this information for your internal, reference purposes. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Community response

youJustLostTheGame

In the released client obfuscation map for 19w36a, 20:21:void youJustLostTheGame() -> a appears as the first method entry, causing backlash from the community. Searge has clarified that this is not a deliberate arrangement.

Modder

Some Minecraft deobfuscation projects did not terminate themselves for concerns of license violations when using obfuscation maps for modding.

History

September 3, 2019					Dinnerbone mentions "a small surprise for modders!" for 19w36a.
Java Edition
1.15 {{Extension DPL}}<ul><li>[[Echo Shard|Echo Shard]]<br/>{{Item | title = Echo Shard | image = Echo Shard.png | renewable = No | stackable = Yes (64) }} An '''echo shard''' is an item found in [[ancient cities]] which can be used to craft [[recovery compass]]es. == Obtaining == === Chest loot === {{LootChestItem|echo-shard}} == Usage == === Crafting ingredient === {{crafting usage|Echo Shard}} == History == {{History|java}} {{History||1.19|snap=22w14a|[[File:Echo Shard JE1 BE1.png|32px]] Added echo shards.}} {{History|bedrock}} {{History||1.19.0|snap=beta 1.19.0.24|[[File:Echo Shard JE1 BE1.png|32px]] Added echo shards. |Currently cannot be found inside [[ancient city]] chests due to outdated structures and loot chests.}} {{History||1.19.0|snap=beta 1.19.0.26|Echo shards now generate inside [[ancient city]] loot chests.}} {{History|foot}} == Issues == {{issue list}} {{Items}} [[Category:Non-renewable resources]] [[de:Echoscherbe]] [[es:Fragmento resonante]] [[fr:Éclat d'écho]] [[ja:残響の欠片]] [[lzh:回音殘片]] [[pt:Fragmento de eco]] [[pl:Odłamek pogłosu]] [[ru:Осколок эха]] [[th:เศษเอคโค]] [[uk:Уламок відлуння]] [[zh:回响碎片]]</li><li>[[Spider Eye|Spider Eye]]<br/>{{Item | title = Spider Eye | image = Spider Eye.png | renewable = Yes | heals = {{Hunger|2}} |effects={{EffectLink|Poison}} (0:05) | stackable = Yes (64) }} A '''spider eye''' is a poisonous [[food]] and [[brewing]] item. == Obtaining == === Mob loot === ==== Spiders ==== [[Spider]]s and [[cave spider]]s have a {{frac|1|3}} chance of dropping a [[spider eye]] when killed by a player or tamed wolf, but not when killed by environmental damage (such as falling). The maximum amount of spider eyes is increased by 1 per level of [[Looting]]. The chance of a spider '''not''' dropping any spider eyes can be found using the formula <code>2 / (Looting Level + 3)</code>. For example, Looting III gives a {{frac|1|3}} chance of not dropping any spider eyes. All other amounts have an equal chance of occurring. ==== Witches ==== [[Witch]]es have a chance of dropping 0–6 spider eyes upon death. This is increased by 3 per level of [[Looting]], for a maximum of 0-15 spider eyes. === Chest loot === {{LootChestItem|spider-eye}} == Usage == === Food === When [[Food|eaten]], a spider eye restores {{hunger|2}} [[Hunger|hunger points]] and 3.2 [[Hunger#Mechanics|saturation points]], giving a nourishment value of 1.6. It also applies a [[Poison]] [[effect]] lasting 5 seconds to the player, causing {{hp|4|poisoned=1}} damage, which reduces hunger/saturation by 6 points. === Crafting ingredient === {{crafting usage}} === Brewing ingredient === {{brewing |showname=1 |head=1 |Spider Eye |Mundane Potion |base=Water Bottle }} {{brewing |foot=1 |Spider Eye |Potion of Poison }} ==Sounds== {{Sound table/Entity/Food}} == Data values == === ID === {{edition|java}}: {{ID table |edition=java |showforms=y |generatetranslationkeys=y |displayname=Spider Eye |spritetype=item |nameid=spider_eye |form=item |foot=1}} {{edition|bedrock}}: {{ID table |edition=bedrock |shownumericids=y |showforms=y |notshowbeitemforms=y |generatetranslationkeys=y |displayname=Spider Eye |spritetype=item |nameid=spider_eye |id=278 |form=item |foot=1}} == Advancements == {{load advancements|Husbandry;A Balanced Diet}} == Video == <div style="text-align:center">{{yt|-PD-wX07TCg}}</div> == History == {{History|java}} {{History||1.0.0|snap=Beta 1.9 Prerelease 2|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes. |Spider eyes can be used to craft [[fermented spider eye]]s.}} {{History|||snap=Beta 1.9 Prerelease 3|Spider eyes can now be [[brewing|brewed]] in a [[water bottle]] to create a [[Mundane Potion]], or in an [[Awkward Potion]] to create a [[Potion of Poison]].}} {{History||1.4.2|snap=12w38b|Spider eyes can now be dropped by [[witch]]es.}} {{History||1.9|snap=15w44a|Spider eyes can now be found in [[desert pyramid|desert temple]] [[chest]]s.}} {{History||1.13|snap=17w47a|Prior to [[1.13/Flattening|''The Flattening'']], this [[item]]'s numeral ID was 375.}} {{History||1.14|snap=18w43a|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}} {{History|pocket alpha}} {{History||v0.12.1|snap=build 1|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.|Spider eyes can be used to craft [[fermented spider eye]]s and for [[brewing]].}} {{History||v0.13.0|snap=build 1|Spider eyes can now be found in [[desert pyramid|desert temple]] [[chest]]s.}} {{History||v0.14.0|snap=build 1|Spider eyes can now dropped by [[witch]]es.}} {{History|bedrock}} {{History||1.10.0|snap=beta 1.10.0.3|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}} {{History|console}} {{History||xbox=TU7|xbone=CU1|ps=1.0|wiiu=Patch 1|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.}} {{History||xbox=none|xbone=none|ps=1.90|wiiu=none|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}} {{History|New 3DS}} {{History||0.1.0|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.}} {{History|foot}} == Issues == {{issue list}} == References == {{reflist}} {{items}} [[cs:Pavoučí oko]] [[de:Spinnenauge]] [[es:Ojo de araña]] [[fr:Œil d'araignée]] [[hu:Pókszem]] [[it:Occhio di ragno]] [[ja:クモの目]] [[ko:거미 눈]] [[nl:Spinnenoog]] [[pl:Oko pająka]] [[pt:Olho de aranha]] [[ru:Паучий глаз]] [[zh:蜘蛛眼]] [[Category:Food]] [[Category:Renewable resources]] [[Category:Brewing recipe]]</li></ul>		19w36a			Downloads to client and server obfuscation maps are now included in client.json.
September 4, 2019					Dinnerbone releases obfuscation mappings for 1.14.4 as well.