Polish "Allow NestedConfigurationProperty on getters"

See gh-38844

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

@@ -22,6 +22,7 @@ import org.springframework.boot.configurationprocessor.metadata.ConfigurationMet
 import org.springframework.boot.configurationprocessor.metadata.ItemMetadata;
 import org.springframework.boot.configurationprocessor.metadata.Metadata;
 import org.springframework.boot.configurationsample.deprecation.Dbcp2Configuration;
+import org.springframework.boot.configurationsample.method.NestedPropertiesMethod;
 import org.springframework.boot.configurationsample.record.ExampleRecord;
 import org.springframework.boot.configurationsample.record.NestedPropertiesRecord;
 import org.springframework.boot.configurationsample.record.RecordWithGetter;
@@ -337,8 +338,9 @@ class ConfigurationMetadataAnnotationProcessorTests extends AbstractMetadataGene
 		assertThat(metadata).has(Metadata.withProperty("config.third.value"));
 		assertThat(metadata).has(Metadata.withProperty("config.fourth"));
 		assertThat(metadata).isNotEqualTo(Metadata.withGroup("config.fourth"));
-		assertThat(metadata)
-				.has(Metadata.withGroup("config.fifth").ofType(DeprecatedSimplePojo.class).fromSource(InnerClassProperties.class));
+		assertThat(metadata).has(Metadata.withGroup("config.fifth")
+			.ofType(DeprecatedSimplePojo.class)
+			.fromSource(InnerClassProperties.class));
 		assertThat(metadata).has(Metadata.withProperty("config.fifth.value").withDeprecation());
 	}
 
@@ -362,6 +364,15 @@ class ConfigurationMetadataAnnotationProcessorTests extends AbstractMetadataGene
 		assertThat(metadata).isNotEqualTo(Metadata.withProperty("specific.foo"));
 	}
 
+	@Test
+	void nestedClassMethod() {
+		ConfigurationMetadata metadata = compile(NestedPropertiesMethod.class);
+		assertThat(metadata).has(Metadata.withGroup("method-nested.nested"));
+		assertThat(metadata).has(Metadata.withProperty("method-nested.nested.my-nested-property"));
+		assertThat(metadata).has(Metadata.withGroup("method-nested.inner.nested"));
+		assertThat(metadata).has(Metadata.withProperty("method-nested.inner.nested.my-nested-property"));
+	}
+
 	@Test
 	void nestedClassChildProperties() {
 		ConfigurationMetadata metadata = compile(ClassWithNestedProperties.class);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/method/NestedPropertiesMethod.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2012-2024 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.method;
+
+import org.springframework.boot.configurationsample.ConfigurationProperties;
+import org.springframework.boot.configurationsample.NestedConfigurationProperty;
+
+@ConfigurationProperties("method-nested")
+public class NestedPropertiesMethod {
+
+	private String myProperty;
+
+	private final NestedProperty nested = new NestedProperty();
+
+	private final Inner inner = new Inner();
+
+	public String getMyProperty() {
+		return this.myProperty;
+	}
+
+	public void setMyProperty(String myProperty) {
+		this.myProperty = myProperty;
+	}
+
+	@NestedConfigurationProperty
+	public NestedProperty getNested() {
+		return this.nested;
+	}
+
+	public Inner getInner() {
+		return this.inner;
+	}
+
+	public static class Inner {
+
+		private String myInnerProperty;
+
+		private final NestedProperty nested = new NestedProperty();
+
+		public String getMyInnerProperty() {
+			return this.myInnerProperty;
+		}
+
+		public void setMyInnerProperty(String myInnerProperty) {
+			this.myInnerProperty = myInnerProperty;
+		}
+
+		@NestedConfigurationProperty
+		public NestedProperty getNested() {
+			return this.nested;
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/method/NestedProperty.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012-2024 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.method;
+
+public class NestedProperty {
+
+	private String myNestedProperty;
+
+	public String getMyNestedProperty() {
+		return this.myNestedProperty;
+	}
+
+	public void setMyNestedProperty(String myNestedProperty) {
+		this.myNestedProperty = myNestedProperty;
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/specific/DeprecatedSimplePojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/specific/InnerClassProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.