Add @conditionals to switch off non-generic endpoints

Fixes gh-601

Author: Dave Syer

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcAutoConfiguration.java

@@ -45,6 +45,7 @@
 import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration;
@@ -147,18 +148,21 @@ public MvcEndpoints mvcEndpoints() {
 
 	@Bean
 	@ConditionalOnBean(EnvironmentEndpoint.class)
+	@ConditionalOnExpression("${endpoints.env.enabled:true}")
 	public EnvironmentMvcEndpoint environmentMvcEndpoint(EnvironmentEndpoint delegate) {
 		return new EnvironmentMvcEndpoint(delegate);
 	}
 
 	@Bean
 	@ConditionalOnBean(MetricsEndpoint.class)
+	@ConditionalOnExpression("${endpoints.metrics.enabled:true}")
 	public MetricsMvcEndpoint metricsMvcEndpoint(MetricsEndpoint delegate) {
 		return new MetricsMvcEndpoint(delegate);
 	}
 
 	@Bean
 	@ConditionalOnBean(ShutdownEndpoint.class)
+	@ConditionalOnExpression("${endpoints.shutdown.enabled:false}")
 	public ShutdownMvcEndpoint shutdownMvcEndpoint(ShutdownEndpoint delegate) {
 		return new ShutdownMvcEndpoint(delegate);
 	}