🔓 Unleash☕ Java

Removing Stale Unleash Toggles from Java

Unleash's Java SDK integrates deeply with Spring — custom strategies, context providers, and toggle listeners can scatter flag logic across your entire service layer. FlagShark traces through all of it.

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What Unleash Flag Cleanup Looks Like in Java

FlagShark generates a PR that removes the dead branch and keeps only the winning code path

Before: Stale flag in production

@RestController
public class NotificationController {
    private final Unleash unleash;

    public NotificationController(Unleash unleash) {
        this.unleash = unleash;
    }

    @GetMapping("/notifications")
    public ResponseEntity<List<Notification>> getNotifications(Principal user) {
        UnleashContext ctx = UnleashContext.builder()
            .userId(user.getName()).build();

        if (unleash.isEnabled("rich-notifications", ctx)) {
            return ResponseEntity.ok(richNotificationService.getAll(user));
        }
        return ResponseEntity.ok(notificationService.getAll(user));
    }
}

After: Clean, readable code

@RestController
public class NotificationController {
    @GetMapping("/notifications")
    public ResponseEntity<List<Notification>> getNotifications(Principal user) {
        return ResponseEntity.ok(richNotificationService.getAll(user));
    }
}

Dead code removed, logic preserved

How FlagShark Detects Unleash Flags in Java

Scan for Unleash SDK calls

FlagShark uses Annotation scanning and Java AST for SDK method detection to find every call to isEnabled(), getVariant(), getAllToggles()across your Spring Boot, Micronaut codebase.

Cross-reference with your dashboard

Each detected flag key is matched against your Unleash project to check rollout status, last evaluation date, and whether the flag is archived or still active.

Generate safe removal PRs

For each stale flag, FlagShark creates a pull request that removes the SDK call, eliminates the dead code branch, and preserves the winning path. Every PR includes a before/after diff you can review.

Java + Unleash: Watch Out For This

Unleash custom strategies defined as Spring beans keep a reference to the toggle indirectly — removing the toggle from your code without removing the strategy class leaves an orphaned bean that Unleash still evaluates on every poll.

Why Automate Unleash Cleanup?

Find every flag

Grep misses flags behind abstractions. AST-level scanning catches SDK calls that regex can't.

PR-based removal

Every cleanup goes through code review. No surprises, no broken builds.

Safe by default

Only flags at 100% rollout for your configured threshold are suggested for removal.

Continuous

New stale flags are detected automatically. Your codebase stays clean without manual audits.

Unleash SDK Methods We Detect in Java

isEnabled()getVariant()getAllToggles()

Plus custom patterns you define in .flagshark.yaml

Unleash + Java Cleanup FAQ

How does FlagShark detect Unleash toggles in Spring Boot?

FlagShark scans for `Unleash` interface injections and traces `isEnabled()` and `getVariant()` calls across your Spring bean graph. It also identifies custom `Strategy` implementations registered with the Unleash client.

Can FlagShark handle Unleash custom activation strategies?

Yes. FlagShark detects custom strategy classes that implement `Strategy` and correlates them with toggle configurations. When a toggle is removed, it marks the associated strategy for cleanup.

What about Unleash toggle subscribers in Java?

FlagShark identifies `ToggleBootstrapHandler` and event listener registrations. When toggles are removed, it highlights orphaned listeners that no longer serve a purpose.

Start Cleaning Up Unleash Flags in Java

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@RestController public class NotificationController { private final Unleash unleash; public NotificationController(Unleash unleash) { this.unleash = unleash; } @GetMapping("/notifications") public ResponseEntity<List<Notification>> getNotifications(Principal user) { UnleashContext ctx = UnleashContext.builder() .userId(user.getName()).build(); if (unleash.isEnabled("rich-notifications", ctx)) { return ResponseEntity.ok(richNotificationService.getAll(user)); } return ResponseEntity.ok(notificationService.getAll(user)); } }

@RestController public class NotificationController { @GetMapping("/notifications") public ResponseEntity<List<Notification>> getNotifications(Principal user) { return ResponseEntity.ok(richNotificationService.getAll(user)); } }