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Expose optional bounded listener and forwarding diagnostics - #186
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🧰 Additional context used📓 Path-based instructions (1)Source excerpt: Keep Bukkit/Paper/Folia, BungeeCord, and Velocity descriptors, entry points, schedulers, event APIs, and configuration behavior aligned where intended.📄 CodeRabbit inference engine (AGENTS.md) Files:
🪛 ast-grep (0.45.3)VotifierPlus/src/test/java/com/bencodez/votifierplus/tests/VotifierDiagnosticsTest.java[warning] 87-87: Avoid user-generated class names for reflection (unsafe-reflection-java) 📝 WalkthroughWalkthroughAdds an optional, read-only network-health snapshot API. The snapshot reports provider, listener, and forwarding status, plus a bounded list of enabled destination names. Bukkit, BungeeCord, and Velocity entry points expose the API. ChangesNetwork health snapshots
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant ManagementSoftware
participant VotifierPlus
participant VotifierDiagnostics
participant VoteReceiver
participant VotifierDiagnosticsSnapshot
ManagementSoftware->>VotifierPlus: getNetworkHealthSnapshot()
VotifierPlus->>VotifierDiagnostics: snapshot(voteReceiver)
VotifierDiagnostics->>VoteReceiver: inspect listener and enabled destinations
VotifierDiagnostics->>VotifierDiagnosticsSnapshot: create bounded snapshot
VotifierDiagnostics-->>VotifierPlus: return snapshot
VotifierPlus-->>ManagementSoftware: return snapshot
Merge Risk: ⚪ Minimal · up to The optional diagnostics API has no established merge-blocking risk; the change is suitable to merge with normal checks. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The new API provides bounded, read-only diagnostics without adding network or credential authority. No introduced security defect was established. Remaining risk concerns transient readings during reload and unverified downstream interpretation of those readings. Retained concerns Security review detailsSecurity Blast Radius
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| } | ||
| ForwardServer server = receiver.getServerData(name); | ||
| if (server != null && server.isEnabled()) { | ||
| String trimmed = name.trim(); |
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When enabled forwarding entries have distinct quoted YAML keys such as "backend" and " backend ", the forwarding path processes them as separate targets, but trimming here turns both into "backend"; VotifierDiagnosticsSnapshot then deduplicates them while leaving forwardingKnown=true. This gives management consumers incomplete evidence marked as complete. Preserve the raw name so snapshot validation rejects noncanonical keys, or detect normalization collisions and mark forwarding unknown.
AGENTS.md reference: AGENTS.md:L38-L38
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Actionable comments posted: 1
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Inline comments:
Review comments at
@VotifierPlus/src/main/java/com/vexsoftware/votifier/diagnostic/VotifierDiagnostics.java:
- Line 33: Update the name handling in VotifierDiagnostics so completeness
validation preserves the configured destination identity: pass the original name
to the snapshot, or mark forwarding evidence incomplete whenever trimming
changes it.
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README.mdVotifierPlus/src/main/java/com/vexsoftware/votifier/VotifierPlus.javaVotifierPlus/src/main/java/com/vexsoftware/votifier/bungee/VotifierPlusBungee.javaVotifierPlus/src/main/java/com/vexsoftware/votifier/diagnostic/VotifierDiagnostics.javaVotifierPlus/src/main/java/com/vexsoftware/votifier/diagnostic/VotifierDiagnosticsSnapshot.javaVotifierPlus/src/main/java/com/vexsoftware/votifier/velocity/VotifierPlusVelocity.javaVotifierPlus/src/test/java/com/bencodez/votifierplus/tests/VotifierDiagnosticsTest.java
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Source excerpt: Keep Bukkit/Paper/Folia, BungeeCord, and Velocity descriptors, entry points, schedulers, event APIs, and configuration behavior aligned where intended.
📄 CodeRabbit inference engine (AGENTS.md)
Files:
VotifierPlus/src/main/java/com/vexsoftware/votifier/bungee/VotifierPlusBungee.javaVotifierPlus/src/main/java/com/vexsoftware/votifier/velocity/VotifierPlusVelocity.java
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| /** Optional read-only management-plane snapshot; never participates in vote processing. */ | ||
| public VotifierDiagnosticsSnapshot getNetworkHealthSnapshot() { | ||
| return VotifierDiagnostics.snapshot(voteReceiver); |
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When management software calls this accessor from a thread other than the platform reload thread, the unsynchronized, non-volatile voteReceiver read is not guaranteed to observe the replacement written by reload(). It can therefore keep snapshotting the old closed receiver and report the listener as unavailable after the new listener is healthy; the same data race exists in the added BungeeCord and Velocity accessors. Publish each receiver field safely (for example, make it volatile) so post-reload snapshots observe the current receiver.
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| ForwardServer server = receiver.getServerData(name); | ||
| if (server != null && server.isEnabled()) { |
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When a Bukkit or Bungee forwarding key exists but its value is malformed (for example, a scalar instead of a configuration section), getServerData(name) returns null; this branch silently skips the entry while leaving forwardingKnown=true. Management consumers can therefore receive an empty, supposedly complete forwarding inventory even though the configured target could not be classified. Set forwardingKnown=false whenever the server data is unavailable.
AGENTS.md reference: AGENTS.md:L38-L38
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Adds an optional immutable
getNetworkHealthSnapshot()accessor to Bukkit, BungeeCord and Velocity entry points so VotingPlugin can distinguish a listener from a second enabled socket-forwarding path.The snapshot reports provider presence, listener initialization, whether forwarding evidence is complete, and at most 100 enabled forwarding entry names. It exposes no hosts, ports, tokens, keys, credentials, files or logs. Missing or partial evidence remains unknown. Receipt, events and forwarding behavior are unchanged; older consumers continue normally without using the accessor.
Validation:
mvn -B -f VotifierPlus/pom.xml testandpackageboth pass all 145 tests, including active/closed/unavailable listeners, bounds, immutability and platform accessor coverage. VotingPlugin's optional integration test consumes this exact candidate JAR. Diff/credential checks pass. Fresh independent read-only review: No findings.This API is optional for the paired VotingPlugin/Control Network Doctor changes; they can deploy safely without it and show UNKNOWN for unavailable listener/forwarding observations.
Related: BenCodez/VotingPlugin-Control#26 (health model/UI), BenCodez/VotingPlugin#1689 (diagnostic producers), #186 (optional safe snapshot).
Review follow-up: enabled forwarding entry names are passed unchanged to snapshot validation. Distinct whitespace-padded YAML keys downgrade completeness instead of being normalized into one complete-looking destination. Regression and full builds pass; independent read-only follow-up review: No findings.
Additional review follow-up: all three platform receiver fields safely publish replacements to background diagnostic callers, preventing stale closed-listener snapshots after reload. Platform publication regressions, full tests/package and independent read-only review pass.
Classification follow-up: a configured forwarding entry with unreadable/malformed server data downgrades forwarding completeness to UNKNOWN rather than looking disabled. Regression and full builds pass; independent focused review: No findings.