Fix indentation to use tabs in Kotlin source files

Closes gh-33840

Author: izeye

Diff for: integration-tests/src/test/kotlin/org/springframework/aop/framework/autoproxy/AspectJAutoProxyInterceptorKotlinIntegrationTests.kt

@@ -56,33 +56,33 @@ import kotlin.annotation.AnnotationTarget.TYPE
 @SpringJUnitConfig(InterceptorConfig::class)
 @DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
 class AspectJAutoProxyInterceptorKotlinIntegrationTests(
-    @Autowired val echo: Echo,
-    @Autowired val firstAdvisor: TestPointcutAdvisor,
-    @Autowired val secondAdvisor: TestPointcutAdvisor,
-    @Autowired val countingAspect: CountingAspect,
-    @Autowired val reactiveTransactionManager: ReactiveCallCountingTransactionManager) {
-
-    @Test
-    fun `Multiple interceptors with regular function`() {
-        assertThat(firstAdvisor.interceptor.invocations).isEmpty()
-        assertThat(secondAdvisor.interceptor.invocations).isEmpty()
-        val value = "Hello!"
-        assertThat(echo.echo(value)).isEqualTo(value)
+	@Autowired val echo: Echo,
+	@Autowired val firstAdvisor: TestPointcutAdvisor,
+	@Autowired val secondAdvisor: TestPointcutAdvisor,
+	@Autowired val countingAspect: CountingAspect,
+	@Autowired val reactiveTransactionManager: ReactiveCallCountingTransactionManager) {
+
+	@Test
+	fun `Multiple interceptors with regular function`() {
+		assertThat(firstAdvisor.interceptor.invocations).isEmpty()
+		assertThat(secondAdvisor.interceptor.invocations).isEmpty()
+		val value = "Hello!"
+		assertThat(echo.echo(value)).isEqualTo(value)
 		assertThat(firstAdvisor.interceptor.invocations).singleElement().matches { String::class.java.isAssignableFrom(it) }
 		assertThat(secondAdvisor.interceptor.invocations).singleElement().matches { String::class.java.isAssignableFrom(it) }
-    }
-
-    @Test
-    fun `Multiple interceptors with suspending function`() {
-        assertThat(firstAdvisor.interceptor.invocations).isEmpty()
-        assertThat(secondAdvisor.interceptor.invocations).isEmpty()
-        val value = "Hello!"
-        runBlocking {
-            assertThat(echo.suspendingEcho(value)).isEqualTo(value)
-        }
+	}
+
+	@Test
+	fun `Multiple interceptors with suspending function`() {
+		assertThat(firstAdvisor.interceptor.invocations).isEmpty()
+		assertThat(secondAdvisor.interceptor.invocations).isEmpty()
+		val value = "Hello!"
+		runBlocking {
+			assertThat(echo.suspendingEcho(value)).isEqualTo(value)
+		}
 		assertThat(firstAdvisor.interceptor.invocations).singleElement().matches { Mono::class.java.isAssignableFrom(it) }
 		assertThat(secondAdvisor.interceptor.invocations).singleElement().matches { Mono::class.java.isAssignableFrom(it) }
-    }
+	}
 
 	@Test // gh-33095
 	fun `Aspect and reactive transactional with suspending function`() {
@@ -113,17 +113,17 @@ class AspectJAutoProxyInterceptorKotlinIntegrationTests(
 		assertThat(countingAspect.counter).`as`("aspect applied once per key").isEqualTo(2)
 	}
 
-    @Configuration
-    @EnableAspectJAutoProxy
-    @EnableTransactionManagement
+	@Configuration
+	@EnableAspectJAutoProxy
+	@EnableTransactionManagement
 	@EnableCaching
-    open class InterceptorConfig {
+	open class InterceptorConfig {
 
-        @Bean
-        open fun firstAdvisor() = TestPointcutAdvisor().apply { order = 0 }
+		@Bean
+		open fun firstAdvisor() = TestPointcutAdvisor().apply { order = 0 }
 
-        @Bean
-        open fun secondAdvisor() = TestPointcutAdvisor().apply { order = 1 }
+		@Bean
+		open fun secondAdvisor() = TestPointcutAdvisor().apply { order = 1 }
 
 		@Bean
 		open fun countingAspect() = CountingAspect()
@@ -138,34 +138,34 @@ class AspectJAutoProxyInterceptorKotlinIntegrationTests(
 			return ConcurrentMapCacheManager()
 		}
 
-        @Bean
-        open fun echo(): Echo {
-            return Echo()
-        }
-    }
+		@Bean
+		open fun echo(): Echo {
+			return Echo()
+		}
+	}
 
-    class TestMethodInterceptor: MethodInterceptor {
+	class TestMethodInterceptor: MethodInterceptor {
 
-        var invocations: MutableList<Class<*>> = mutableListOf()
+		var invocations: MutableList<Class<*>> = mutableListOf()
 
-        @Suppress("RedundantNullableReturnType")
-        override fun invoke(invocation: MethodInvocation): Any? {
-            val result = invocation.proceed()
-            invocations.add(result!!.javaClass)
-            return result
-        }
+		@Suppress("RedundantNullableReturnType")
+		override fun invoke(invocation: MethodInvocation): Any? {
+			val result = invocation.proceed()
+			invocations.add(result!!.javaClass)
+			return result
+		}
 
-    }
+	}
 
-    class TestPointcutAdvisor : StaticMethodMatcherPointcutAdvisor(TestMethodInterceptor()) {
+	class TestPointcutAdvisor : StaticMethodMatcherPointcutAdvisor(TestMethodInterceptor()) {
 
-        val interceptor: TestMethodInterceptor
-            get() = advice as TestMethodInterceptor
+		val interceptor: TestMethodInterceptor
+			get() = advice as TestMethodInterceptor
 
-        override fun matches(method: Method, targetClass: Class<*>): Boolean {
-            return targetClass == Echo::class.java && method.name.lowercase().endsWith("echo")
-        }
-    }
+		override fun matches(method: Method, targetClass: Class<*>): Boolean {
+			return targetClass == Echo::class.java && method.name.lowercase().endsWith("echo")
+		}
+	}
 
 	@Target(CLASS, FUNCTION, ANNOTATION_CLASS, TYPE)
 	@Retention(AnnotationRetention.RUNTIME)
@@ -185,16 +185,16 @@ class AspectJAutoProxyInterceptorKotlinIntegrationTests(
 		}
 	}
 
-    open class Echo {
+	open class Echo {
 
-        open fun echo(value: String): String {
-            return value
-        }
+		open fun echo(value: String): String {
+			return value
+		}
 
-        open suspend fun suspendingEcho(value: String): String {
-            delay(1)
-            return value
-        }
+		open suspend fun suspendingEcho(value: String): String {
+			delay(1)
+			return value
+		}
 
 		@Transactional
 		@Counting
@@ -212,6 +212,6 @@ class AspectJAutoProxyInterceptorKotlinIntegrationTests(
 			return "$value ${cacheCounter++}"
 		}
 
-    }
+	}
 
 }

Diff for: spring-aop/src/test/kotlin/org/springframework/aop/support/AopUtilsKotlinTests.kt

@@ -31,17 +31,17 @@ import kotlin.coroutines.Continuation
  */
 class AopUtilsKotlinTests {
 
-    @Test
-    fun `Invoking suspending function should return Mono`() {
-        val value = "foo"
-        val method = ReflectionUtils.findMethod(WithoutInterface::class.java, "handle",
+	@Test
+	fun `Invoking suspending function should return Mono`() {
+		val value = "foo"
+		val method = ReflectionUtils.findMethod(WithoutInterface::class.java, "handle",
 			String::class. java, Continuation::class.java)!!
-        val continuation = Continuation<Any>(CoroutineName("test")) { }
+		val continuation = Continuation<Any>(CoroutineName("test")) { }
 		val result = AopUtils.invokeJoinpointUsingReflection(WithoutInterface(), method, arrayOf(value, continuation))
-        assertThat(result).isInstanceOfSatisfying(Mono::class.java) {
-            assertThat(it.block()).isEqualTo(value)
-        }
-    }
+		assertThat(result).isInstanceOfSatisfying(Mono::class.java) {
+			assertThat(it.block()).isEqualTo(value)
+		}
+	}
 
 	@Test
 	fun `Invoking suspending function on bridged method should return Mono`() {
@@ -54,11 +54,11 @@ class AopUtilsKotlinTests {
 		}
 	}
 
-    @Suppress("unused")
-    suspend fun suspendingFunction(value: String): String {
-        delay(1)
-        return value
-    }
+	@Suppress("unused")
+	suspend fun suspendingFunction(value: String): String {
+		delay(1)
+		return value
+	}
 
 	class WithoutInterface {
 		suspend fun handle(value: String): String {