Replace @ConditionOnBean with @ConditionOnClass .

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/config/PolarisCircuitBreakerAutoConfiguration.java

@@ -29,7 +29,6 @@ import com.tencent.polaris.factory.api.DiscoveryAPIFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.openfeign.FeignAutoConfiguration;
@@ -82,7 +81,7 @@ public class PolarisCircuitBreakerAutoConfiguration {
 	 */
 	@Configuration(proxyBeanMethods = false)
 	@AutoConfigureAfter(PolarisContextAutoConfiguration.class)
-	@ConditionalOnBean(RestTemplate.class)
+	@ConditionalOnClass(RestTemplate.class)
 	@ConditionalOnProperty(value = "spring.cloud.polaris.circuitbreaker.enabled", havingValue = "true", matchIfMissing = true)
 	protected static class PolarisRestTemplateAutoConfiguration {