Fix conditional registration of springShellApplicationRunner

Resolves #1330

Signed-off-by: David Pilar <david@czpilar.net>

Author: czpilar

spring-shell-core-autoconfigure/src/main/java/org/springframework/shell/core/autoconfigure/ShellRunnerAutoConfiguration.java

@@ -34,7 +34,7 @@
 public class ShellRunnerAutoConfiguration {
 
 	@Bean
-	@ConditionalOnMissingBean
+	@ConditionalOnMissingBean(name = "springShellApplicationRunner")
 	public ApplicationRunner springShellApplicationRunner(ShellRunner shellRunner) {
 		return args -> shellRunner.run(args.getSourceArgs());
 	}

spring-shell-core-autoconfigure/src/test/java/org/springframework/shell/core/autoconfigure/ShellRunnerAutoConfigurationTests.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2026-present 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.shell.core.autoconfigure;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+import org.springframework.shell.core.command.annotation.Command;
+import org.springframework.stereotype.Component;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * Tests for {@link ShellRunnerAutoConfiguration}.
+ *
+ * @author David Pilar
+ */
+class ShellRunnerAutoConfigurationTests {
+
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+		.withConfiguration(AutoConfigurations.of(SpringShellAutoConfiguration.class))
+		.withPropertyValues("spring.shell.interactive.enabled=false");
+
+	@Test
+	void springShellApplicationRunnerShouldBeRegistered() {
+		this.contextRunner.withUserConfiguration(TestShellApplication.class).run(context -> {
+			ApplicationRunner shellRunner = context.getBean("springShellApplicationRunner", ApplicationRunner.class);
+			assertNotNull(shellRunner, "springShellApplicationRunner should be registered");
+		});
+	}
+
+	@Test
+	void springShellApplicationRunnerShouldBeRegisteredAlongsideUserApplicationRunner() {
+		this.contextRunner.withUserConfiguration(TestShellApplicationWithRunner.class).run(context -> {
+			ApplicationRunner shellRunner = context.getBean("springShellApplicationRunner", ApplicationRunner.class);
+			assertNotNull(shellRunner,
+					"springShellApplicationRunner should be registered even when another ApplicationRunner exists");
+
+			assertTrue(context.containsBean("demoRunner"), "User-defined ApplicationRunner should also be registered");
+		});
+	}
+
+	@SpringBootApplication
+	static class TestShellApplication {
+
+		@Command
+		public void hi() {
+			System.out.println("Hello!");
+		}
+
+	}
+
+	@SpringBootApplication
+	static class TestShellApplicationWithRunner {
+
+		@Command
+		public void hi() {
+			System.out.println("Hello!");
+		}
+
+		@Component("demoRunner")
+		static class DemoRunner implements ApplicationRunner {
+
+			@Override
+			public void run(ApplicationArguments args) {
+				System.out.println("DemoRunner executed!");
+			}
+
+		}
+
+	}
+
+}