A bridge/proxy allowing you to connect to Minecraft: Java Edition servers with Minecraft: Bedrock Edition.
This report summarizes scanner evidence for GeyserMC/Geyser, a Java project with 5,946 GitHub stars. SynthScan examined 251,007 lines of code across 1530 source files, recording 125 pattern matches distributed across 7 syntactic categories. The legacy adjusted pattern signal is 1.3 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 96 finding(s).
Are imports declared and package/API names verified? 13 finding(s).
Are wrappers, guards, and repeated structures necessary? 18 finding(s).
Which changes need focused human review? 125 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 125 distinct pattern matches across 7 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | …r/translator/protocol/java/JavaCommandsTranslator.java | 202 | var oldEvent = new org.geysermc.geyser.api.event.downstream.ServerDefineCommandsEvent(session, commands.keySet() | CODE |
| CRITICAL | …ocol/java/level/JavaSectionBlocksUpdateTranslator.java | 109 | updateSubChunkBlocksPacket.getStandardBlocks().add(new org.cloudburstmc.protocol.bedrock.data.BlockChangeEnt | CODE |
| CRITICAL | …ocol/java/level/JavaSectionBlocksUpdateTranslator.java | 119 | updateSubChunkBlocksPacket.getExtraBlocks().add(new org.cloudburstmc.protocol.bedrock.data.BlockChangeEn | CODE |
| CRITICAL | …tor/protocol/java/level/JavaMapItemDataTranslator.java | 49 | org.cloudburstmc.protocol.bedrock.packet.ClientboundMapItemDataPacket mapItemDataPacket = new org.cloudburstmc.p | CODE |
| CRITICAL | …eyser/registry/loader/ParticleTypesRegistryLoader.java | 63 | type = org.cloudburstmc.protocol.bedrock.data.ParticleType.valueOf(eventType.getAsString().toUpp | CODE |
| CRITICAL⚡ | …/geyser/registry/loader/SoundEventsRegistryLoader.java | 60 | javaEffect = org.geysermc.mcprotocollib.protocol.data.game.level.event.LevelEventType.valueOf(en | CODE |
| CRITICAL⚡ | …/geyser/registry/loader/SoundEventsRegistryLoader.java | 61 | LevelEventType levelEventType = org.cloudburstmc.protocol.bedrock.data.LevelEvent.valueOf(node.g | CODE |
| CRITICAL⚡ | …/geyser/registry/loader/SoundEventsRegistryLoader.java | 66 | javaEffect = org.geysermc.mcprotocollib.protocol.data.game.level.event.LevelEventType.valueOf(en | CODE |
| CRITICAL⚡ | …/geyser/registry/loader/SoundEventsRegistryLoader.java | 67 | org.cloudburstmc.protocol.bedrock.data.SoundEvent soundEvent = org.cloudburstmc.protocol.bedrock | CODE |
| CRITICAL⚡ | …/geyser/registry/loader/SoundEventsRegistryLoader.java | 73 | javaEffect = org.geysermc.mcprotocollib.protocol.data.game.level.event.LevelEventType.valueOf(en | CODE |
| CRITICAL | …/java/org/geysermc/geyser/level/gamerule/GameRule.java | 113 | return MessageTranslator.convertMessage(net.kyori.adventure.text.Component.translatable(translatable), session.l | CODE |
| CRITICAL | …in/java/org/geysermc/geyser/session/GeyserSession.java | 1561 | this.inputCache.setInputMode(org.cloudburstmc.protocol.bedrock.data.InputMode.values()[data.getCurrentInputMode( | CODE |
| CRITICAL | …er/platform/mod/mixin/server/PistonBaseBlockMixin.java | 104 | org.geysermc.geyser.level.block.type.BlockState state = org.geysermc.geyser.level.block.type.BlockSt | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 1 | # -------------------------------- | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 121 | show-coordinates: true | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 141 | allow-custom-skulls: true | COMMENT |
| LOW | core/src/test/resources/configuration/tests/legacy.yml | 181 | COMMENT | |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 121 | show-coordinates: true | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 141 | allow-custom-skulls: true | COMMENT |
| LOW | …e/src/test/resources/configuration/tests/v4default.yml | 181 | COMMENT | |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 81 | # Bedrock prevents building and displaying blocks above Y127 in the Nether. | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 101 | # Force clients to load all resource packs if there are any. | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 141 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 161 | # This option allows you to specify after how many Scoreboard packets per seconds | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 181 | # Whether to enable HAPROXY protocol when connecting to the Java server. | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 201 | # The port to broadcast to Bedrock clients with the MOTD that they should use to connect to the server. | COMMENT |
| LOW | …src/test/resources/configuration/tests/helpful-smp.yml | 221 | COMMENT | |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 81 | - ThisOther | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 141 | allow-custom-skulls: true | COMMENT |
| LOW | …src/test/resources/configuration/tests/all-changed.yml | 181 | COMMENT | |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 121 | show-coordinates: true | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 141 | allow-custom-skulls: false | COMMENT |
| LOW | …/resources/configuration/tests/no-emotes-no-skulls.yml | 181 | COMMENT | |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 121 | show-coordinates: true | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 141 | allow-custom-skulls: true | COMMENT |
| LOW | …/resources/configuration/invalid/port_out_of_range.yml | 181 | COMMENT | |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 121 | show-coordinates: true | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 141 | allow-custom-skulls: true | COMMENT |
| LOW | …est/resources/configuration/invalid/invalid_remote.yml | 181 | COMMENT | |
| LOW | …/test/resources/configuration/invalid/invalid_enum.yml | 1 | # -------------------------------- | COMMENT |
| LOW | …/test/resources/configuration/invalid/invalid_enum.yml | 21 | # This option makes the Bedrock port the same as the Java port every time you start the server. | COMMENT |
| LOW | …/test/resources/configuration/invalid/invalid_enum.yml | 41 | # Keeping this list empty means there is no IP address whitelist. | COMMENT |
| LOW | …/test/resources/configuration/invalid/invalid_enum.yml | 61 | # IF YOU DON'T KNOW WHAT THIS IS, DON'T TOUCH IT! | COMMENT |
| LOW | …/test/resources/configuration/invalid/invalid_enum.yml | 81 | - ThisOtherExampleUsernameShouldAlsoBeLongEnough | COMMENT |
| 15 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | core/src/test/resources/configuration/tests/legacy.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | core/src/test/resources/configuration/tests/legacy.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …e/src/test/resources/configuration/tests/v4default.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …e/src/test/resources/configuration/tests/v4default.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/helpful-smp.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/helpful-smp.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/all-changed.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/all-changed.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …/resources/configuration/tests/no-emotes-no-skulls.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …/resources/configuration/tests/no-emotes-no-skulls.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …/resources/configuration/invalid/port_out_of_range.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …/resources/configuration/invalid/port_out_of_range.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …est/resources/configuration/invalid/invalid_remote.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …est/resources/configuration/invalid/invalid_remote.yml | 12 | # -------------------------------- | COMMENT |
| MEDIUM | …/test/resources/configuration/invalid/invalid_enum.yml | 1 | # -------------------------------- | COMMENT |
| MEDIUM | …/test/resources/configuration/invalid/invalid_enum.yml | 12 | # -------------------------------- | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | core/src/test/resources/configuration/tests/legacy.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …e/src/test/resources/configuration/tests/v4default.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/helpful-smp.yml | 78 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …src/test/resources/configuration/tests/all-changed.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …/resources/configuration/tests/no-emotes-no-skulls.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …/resources/configuration/invalid/port_out_of_range.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …est/resources/configuration/invalid/invalid_remote.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| MEDIUM | …/test/resources/configuration/invalid/invalid_enum.yml | 123 | # Whether Bedrock players are blocked from performing their scaffolding-style bridging. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 180 | // Step 1: Collect the extension files that currently exist so they can be replaced | COMMENT |
| LOW⚡ | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 188 | // Step 2: Move the updated/new extensions | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 205 | // Step 3: Order the extensions to allow dependencies to load in the correct order | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 318 | // Step 4: Load the extensions | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 357 | // Step 5: Register the extensions | COMMENT |
| LOW | …tor/protocol/java/level/JavaBlockUpdateTranslator.java | 69 | // We need to check if the identifier is the same, else a packet with the sound of what the | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 180 | // Step 1: Collect the extension files that currently exist so they can be replaced | COMMENT |
| LOW⚡ | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 188 | // Step 2: Move the updated/new extensions | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 205 | // Step 3: Order the extensions to allow dependencies to load in the correct order | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 318 | // Step 4: Load the extensions | COMMENT |
| LOW | …g/geysermc/geyser/extension/GeyserExtensionLoader.java | 357 | // Step 5: Register the extensions | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …rg/geysermc/geyser/entity/GeyserEntityDataManager.java | 41 | public final class GeyserEntityDataManager { | CODE |
| LOW | …etwork/bedrock/raknet/RakConnectionRequestHandler.java | 47 | public class RakConnectionRequestHandler extends ChannelInboundHandlerAdapter { | CODE |