Support for resource patterns in @propertysource locations

Closes gh-21325

spring-context/src/test/java/org/springframework/context/annotation/PropertySourceAnnotationTests.java

@@ -234,6 +234,14 @@ void multipleComposedPropertySourceAnnotations() {  // gh-30941
 		ctx.close();
 	}
 
+	@Test
+	void multipleResourcesFromPropertySourcePattern() {  // gh-21325
+		ConfigurableApplicationContext ctx = new AnnotationConfigApplicationContext(ResourcePatternConfig.class);
+		ctx.getBean(ResourcePatternConfig.class);
+		assertEnvironmentContainsProperties(ctx, "from.p1", "from.p2", "from.p3", "from.p4", "from.p5");
+		ctx.close();
+	}
+
 	@Test
 	void withNamedPropertySources() {
 		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(ConfigWithNamedPropertySources.class);
@@ -277,15 +285,15 @@ void orderingWithAndWithoutNameAndMultipleResourceLocations() {
 	}
 
 	@Test
-	void orderingWithAndWithoutNameAndFourResourceLocations() {
+	void orderingWithFourResourceLocations() {
 		// SPR-12198: p4 should 'win' as it was registered last
-		AnnotationConfigApplicationContext ctxWithoutName = new AnnotationConfigApplicationContext(ConfigWithFourResourceLocations.class);
-		assertEnvironmentProperty(ctxWithoutName, "testbean.name", "p4TestBean");
-		ctxWithoutName.close();
+		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(ConfigWithFourResourceLocations.class);
+		assertEnvironmentProperty(ctx, "testbean.name", "p4TestBean");
+		ctx.close();
 	}
 
 	@Test
-	void orderingDoesntReplaceExisting() throws Exception {
+	void orderingDoesntReplaceExisting() {
 		// SPR-12198: mySource should 'win' as it was registered manually
 		AnnotationConfigApplicationContext ctxWithoutName = new AnnotationConfigApplicationContext();
 		MapPropertySource mySource = new MapPropertySource("mine", Map.of("testbean.name", "myTestBean"));
@@ -522,6 +530,12 @@ static class ConfigWithRepeatedPropertySourceAnnotationsOnComposedAnnotation {
 	static class MultipleComposedAnnotationsConfig {
 	}
 
+
+	@PropertySource("classpath*:org/springframework/context/annotation/p?.properties")
+	static class ResourcePatternConfig {
+	}
+
+
 	@Configuration
 	@PropertySources({
 		@PropertySource(name = "psName", value = "classpath:org/springframework/context/annotation/p1.properties"),

spring-core/src/main/java/org/springframework/core/io/support/PropertySourceProcessor.java

@@ -46,6 +46,7 @@
  *
  * @author Stephane Nicoll
  * @author Sam Brannen
+ * @author Juergen Hoeller
  * @since 6.0
  * @see PropertySourceDescriptor
  */
@@ -58,14 +59,14 @@ public class PropertySourceProcessor {
 
 	private final ConfigurableEnvironment environment;
 
-	private final ResourceLoader resourceLoader;
+	private final ResourcePatternResolver resourcePatternResolver;
 
 	private final List<String> propertySourceNames = new ArrayList<>();
 
 
 	public PropertySourceProcessor(ConfigurableEnvironment environment, ResourceLoader resourceLoader) {
 		this.environment = environment;
-		this.resourceLoader = resourceLoader;
+		this.resourcePatternResolver = ResourcePatternUtils.getResourcePatternResolver(resourceLoader);
 	}
 
 
@@ -87,8 +88,9 @@ public void processPropertySource(PropertySourceDescriptor descriptor) throws IO
 		for (String location : locations) {
 			try {
 				String resolvedLocation = this.environment.resolveRequiredPlaceholders(location);
-				Resource resource = this.resourceLoader.getResource(resolvedLocation);
-				addPropertySource(factory.createPropertySource(name, new EncodedResource(resource, encoding)));
+				for (Resource resource : this.resourcePatternResolver.getResources(resolvedLocation)) {
+					addPropertySource(factory.createPropertySource(name, new EncodedResource(resource, encoding)));
+				}
 			}
 			catch (RuntimeException | IOException ex) {
 				// Placeholders not resolvable (IllegalArgumentException) or resource not found when trying to open it