Fix DefaultPropertiesPropertySource package tangle

Relocate `DefaultPropertiesPropertySource` to fix a package tangle.

Closes gh-23383

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/ConfigDataApplicationContextInitializer.java

@@ -16,10 +16,10 @@
 
 package org.springframework.boot.test.context;
 
+import org.springframework.boot.DefaultPropertiesPropertySource;
 import org.springframework.boot.context.config.ConfigData;
 import org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor;
 import org.springframework.boot.env.DefaultBootstrapRegisty;
-import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.env.RandomValuePropertySource;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ConfigurableApplicationContext;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/DefaultPropertiesPropertySource.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.env;
+package org.springframework.boot;
 
 import java.util.Map;
 import java.util.function.Consumer;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -46,7 +46,6 @@ import org.springframework.boot.context.properties.bind.Bindable;
 import org.springframework.boot.context.properties.bind.Binder;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
 import org.springframework.boot.convert.ApplicationConversionService;
-import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.web.reactive.context.AnnotationConfigReactiveWebServerApplicationContext;
 import org.springframework.boot.web.reactive.context.StandardReactiveWebEnvironment;
 import org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataEnvironment.java

@@ -25,6 +25,7 @@ import java.util.Set;
 
 import org.apache.commons.logging.Log;
 
+import org.springframework.boot.DefaultPropertiesPropertySource;
 import org.springframework.boot.context.config.ConfigDataEnvironmentContributors.BinderOption;
 import org.springframework.boot.context.properties.bind.BindException;
 import org.springframework.boot.context.properties.bind.Bindable;
@@ -33,7 +34,6 @@ import org.springframework.boot.context.properties.bind.PlaceholdersResolver;
 import org.springframework.boot.context.properties.source.ConfigurationPropertyName;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySource;
 import org.springframework.boot.env.BootstrapRegistry;
-import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.logging.DeferredLogFactory;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.core.env.Environment;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java

@@ -42,6 +42,7 @@ import org.apache.commons.logging.Log;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.boot.DefaultPropertiesPropertySource;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
@@ -49,7 +50,6 @@ import org.springframework.boot.context.properties.bind.Bindable;
 import org.springframework.boot.context.properties.bind.Binder;
 import org.springframework.boot.context.properties.bind.PropertySourcesPlaceholdersResolver;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
-import org.springframework.boot.env.DefaultPropertiesPropertySource;
 import org.springframework.boot.env.EnvironmentPostProcessor;
 import org.springframework.boot.env.PropertySourceLoader;
 import org.springframework.boot.env.RandomValuePropertySource;

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/DefaultPropertiesPropertySourceTests.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.env;
+package org.springframework.boot;
 
 import java.util.Collections;
 import java.util.function.Consumer;