fix: handle @ConfigurationProperties nested in @EachProperty properly

Apply Qualifier when retrieving nested configuration from interface
annotated with @EachProperty.

Fixes #7210

context/src/main/java/io/micronaut/runtime/context/env/ConfigurationIntroductionAdvice.java

@@ -30,6 +30,7 @@
 import io.micronaut.core.type.Argument;
 import io.micronaut.core.type.ReturnType;
 import io.micronaut.core.value.PropertyNotFoundException;
+import io.micronaut.inject.qualifiers.Qualifiers;
 
 import java.util.Optional;
 
@@ -71,16 +72,18 @@ public Object intercept(MethodInvocationContext<Object, Object> context) {
         final ReturnType<Object> rt = context.getReturnType();
         final Class<Object> returnType = rt.getType();
         if (context.isTrue(ConfigurationAdvice.class, MEMBER_BEAN)) {
+            final Qualifier<Object> qualifier = name != null ? Qualifiers.byName(name) : null;
+
             if (context.isNullable()) {
-                final Object v = beanContext.findBean(returnType).orElse(null);
+                final Object v = beanContext.findBean(returnType, qualifier).orElse(null);
                 if (v != null) {
                     return environment.convertRequired(v, returnType);
                 } else {
                     return v;
                 }
             } else {
                 return environment.convertRequired(
-                        beanContext.getBean(returnType),
+                        beanContext.getBean(returnType, qualifier),
                         returnType
                 );
             }

inject-java/src/test/groovy/io/micronaut/inject/foreach/EachPropertyInterfaceSpec.groovy

@@ -2,8 +2,6 @@ package io.micronaut.inject.foreach
 
 import io.micronaut.context.ApplicationContext
 import io.micronaut.inject.qualifiers.Qualifiers
-import spock.lang.AutoCleanup
-import spock.lang.Shared
 import spock.lang.Specification
 
 class EachPropertyInterfaceSpec extends Specification {
@@ -30,4 +28,27 @@ class EachPropertyInterfaceSpec extends Specification {
         cleanup:
         context.close()
     }
+
+    void "test @EachProperty on interface with nested @ConfigurationProperties"() {
+        given:
+        def context = ApplicationContext.run(
+                "foo.bar[0].address.host": 'host1',
+                "foo.bar[0].address.port": '9999',
+                "foo.bar[1].address.host": 'host2',
+                "foo.bar[1].address.port": '8888'
+        )
+
+        when:
+        def one = context.getBean(InterfaceAggregatorConfig, Qualifiers.byName("0"))
+        def two = context.getBean(InterfaceAggregatorConfig, Qualifiers.byName("1"))
+
+        then:
+        one.address.host == 'host1'
+        one.address.port == 9999
+        two.address.host == 'host2'
+        two.address.port == 8888
+
+        cleanup:
+        context.close()
+    }
 }

inject-java/src/test/groovy/io/micronaut/inject/foreach/InterfaceAggregatorConfig.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2017-2022 original 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 io.micronaut.inject.foreach;
+
+import io.micronaut.context.annotation.ConfigurationProperties;
+import io.micronaut.context.annotation.EachProperty;
+
+@EachProperty(value = "foo.bar", list = true)
+public interface InterfaceAggregatorConfig {
+
+    AddressConfig getAddress();
+
+    @ConfigurationProperties("address")
+    interface AddressConfig {
+
+        String getHost();
+
+        int getPort();
+    }
+}