Consider @deprecated on field when determining property's deprecation

Fixes gh-17550

Author: wilkinsona

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessor.java

@@ -277,7 +277,8 @@ private void processSimpleTypes(String prefix, TypeElement element, ExecutableEl
 				String sourceType = this.typeUtils.getQualifiedName(element);
 				String description = this.typeUtils.getJavaDoc(field);
 				Object defaultValue = fieldValues.get(name);
-				boolean deprecated = isDeprecated(getter) || isDeprecated(setter) || isDeprecated(source);
+				boolean deprecated = isDeprecated(getter) || isDeprecated(setter) || isDeprecated(field)
+						|| isDeprecated(source);
 				this.metadataCollector.add(ItemMetadata.newProperty(prefix, name, dataType, sourceType, null,
 						description, defaultValue, deprecated ? getItemDeprecation(getter) : null));
 			}

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessorTests.java

@@ -69,6 +69,7 @@
 import org.springframework.boot.configurationsample.method.MethodAndClassConfig;
 import org.springframework.boot.configurationsample.method.SimpleMethodConfig;
 import org.springframework.boot.configurationsample.simple.ClassWithNestedProperties;
+import org.springframework.boot.configurationsample.simple.DeprecatedFieldSingleProperty;
 import org.springframework.boot.configurationsample.simple.DeprecatedSingleProperty;
 import org.springframework.boot.configurationsample.simple.DescriptionProperties;
 import org.springframework.boot.configurationsample.simple.HierarchicalProperties;
@@ -224,6 +225,15 @@ public void singleDeprecatedProperty() {
 				.withDeprecation("renamed", "singledeprecated.new-name"));
 	}
 
+	@Test
+	public void singleDeprecatedFieldProperty() {
+		Class<?> type = DeprecatedFieldSingleProperty.class;
+		ConfigurationMetadata metadata = compile(type);
+		assertThat(metadata).has(Metadata.withGroup("singlefielddeprecated").fromSource(type));
+		assertThat(metadata).has(Metadata.withProperty("singlefielddeprecated.name", String.class).fromSource(type)
+				.withDeprecation(null, null));
+	}
+
 	@Test
 	public void deprecatedOnUnrelatedSetter() {
 		Class<?> type = DeprecatedUnrelatedMethodPojo.class;

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/simple/DeprecatedFieldSingleProperty.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.configurationsample.simple;
+
+import org.springframework.boot.configurationsample.ConfigurationProperties;
+
+/**
+ * Configuration properties with a single deprecated element.
+ *
+ * @author Andy Wilkinson
+ */
+@ConfigurationProperties("singlefielddeprecated")
+public class DeprecatedFieldSingleProperty {
+
+	@Deprecated
+	private String name;
+
+	public String getName() {
+		return this.name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+}