Resilience4j bulkhead issue with @bulkhead in springboot

I am implementing bulkhead pattern in springboot using @bulkhead annotation. I have this configuration resilience4j.bulkhead: instances: performanceService: maxConcurrentCalls: 2 maxWaitDuration: 1ms

on my service method I have @Bulkhead(name = "performanceService", fallbackMethod = "getDefaultPerformanceData")

However it is not working. When I call performance endpoint I am directly getting the getDefaultPerformanceData().

is there something I am doing wrong.