Polish

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

@@ -115,12 +115,14 @@ public class ManagementServerProperties implements SecurityPrerequisite {
 	}
 
 	public void setContextPath(String contextPath) {
+		this.contextPath = cleanContextPath(contextPath);
+	}
+
+	private String cleanContextPath(String contextPath) {
 		if (StringUtils.hasText(contextPath) && contextPath.endsWith("/")) {
-			this.contextPath = contextPath.substring(0, contextPath.length() - 1);
-		}
-		else {
-			this.contextPath = contextPath;
+			return contextPath.substring(0, contextPath.length() - 1);
 		}
+		return contextPath;
 	}
 
 	public Security getSecurity() {

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

@@ -46,7 +46,7 @@ import org.springframework.web.servlet.HandlerMapping;
 @ConditionalOnClass({ Servlet.class, ServletRegistration.class,
 		OncePerRequestFilter.class, HandlerMapping.class })
 @AutoConfigureAfter(MetricRepositoryAutoConfiguration.class)
-@ConditionalOnProperty(name="endpoints.metrics.filter.enabled", matchIfMissing=true)
+@ConditionalOnProperty(name = "endpoints.metrics.filter.enabled", matchIfMissing = true)
 public class MetricFilterAutoConfiguration {
 
 	@Autowired
@@ -59,4 +59,5 @@ public class MetricFilterAutoConfiguration {
 	public Filter metricFilter() {
 		return new MetricsFilter(this.counterService, this.gaugeService);
 	}
+
 }

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

@@ -30,6 +30,7 @@ import org.springframework.boot.actuate.metrics.GaugeService;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.HttpStatus.Series;
 import org.springframework.util.StopWatch;
 import org.springframework.web.filter.OncePerRequestFilter;
 import org.springframework.web.servlet.HandlerMapping;
@@ -96,10 +97,8 @@ final class MetricsFilter extends OncePerRequestFilter {
 		if (bestMatchingPattern != null) {
 			return fixSpecialCharacters(bestMatchingPattern.toString());
 		}
-		if (is4xxClientError(status)) {
-			return UNKNOWN_PATH_SUFFIX;
-		}
-		if (is3xxRedirection(status)) {
+		Series series = getSeries(status);
+		if (Series.CLIENT_ERROR.equals(series) || Series.REDIRECTION.equals(series)) {
 			return UNKNOWN_PATH_SUFFIX;
 		}
 		return path;
@@ -120,22 +119,14 @@ final class MetricsFilter extends OncePerRequestFilter {
 		return result;
 	}
 
-	private boolean is4xxClientError(int status) {
+	private Series getSeries(int status) {
 		try {
-			return HttpStatus.valueOf(status).is4xxClientError();
+			return HttpStatus.valueOf(status).series();
 		}
 		catch (Exception ex) {
-			return false;
+			return null;
 		}
-	}
 
-	private boolean is3xxRedirection(int status) {
-		try {
-			return HttpStatus.valueOf(status).is3xxRedirection();
-		}
-		catch (Exception ex) {
-			return false;
-		}
 	}
 
 	private String getKey(String string) {

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/autoconfigure/MetricFilterAutoConfigurationTests.java

@@ -16,19 +16,6 @@
 
 package org.springframework.boot.actuate.autoconfigure;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-import static org.mockito.BDDMockito.willAnswer;
-import static org.mockito.BDDMockito.willThrow;
-import static org.mockito.Matchers.anyDouble;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-
 import java.io.IOException;
 
 import javax.servlet.Filter;
@@ -60,6 +47,19 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.filter.OncePerRequestFilter;
 import org.springframework.web.util.NestedServletException;
 
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+import static org.mockito.BDDMockito.willAnswer;
+import static org.mockito.BDDMockito.willThrow;
+import static org.mockito.Matchers.anyDouble;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
 /**
  * Tests for {@link MetricFilterAutoConfiguration}.
  *