Polish tests in spring-aop

This commit polishes tests in spring-aop by using
OrderComparator.sort() and lambda expressions instead of anonymous
classes where feasible.

Closes gh-23458

spring-aop/src/test/java/org/springframework/aop/aspectj/MethodInvocationProceedingJoinPointTests.java

@@ -129,15 +129,12 @@ public class MethodInvocationProceedingJoinPointTests {
 		final Object raw = new TestBean();
 		ProxyFactory pf = new ProxyFactory(raw);
 		pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
-		pf.addAdvice(new MethodBeforeAdvice() {
-			@Override
-			public void before(Method method, Object[] args, @Nullable Object target) throws Throwable {
+		pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
 			SourceLocation sloc = AbstractAspectJAdvice.currentJoinPoint().getSourceLocation();
 			assertThat(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation()).as("Same source location must be returned on subsequent requests").isEqualTo(sloc);
 			assertThat(sloc.getWithinType()).isEqualTo(TestBean.class);
 			assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(sloc::getLine);
 			assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(sloc::getFileName);
-			}
 		});
 		ITestBean itb = (ITestBean) pf.getProxy();
 		// Any call will do
@@ -149,15 +146,12 @@ public class MethodInvocationProceedingJoinPointTests {
 		final Object raw = new TestBean();
 		ProxyFactory pf = new ProxyFactory(raw);
 		pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
-		pf.addAdvice(new MethodBeforeAdvice() {
-			@Override
-			public void before(Method method, Object[] args, @Nullable Object target) throws Throwable {
+		pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
 			StaticPart staticPart = AbstractAspectJAdvice.currentJoinPoint().getStaticPart();
 			assertThat(AbstractAspectJAdvice.currentJoinPoint().getStaticPart()).as("Same static part must be returned on subsequent requests").isEqualTo(staticPart);
 			assertThat(staticPart.getKind()).isEqualTo(ProceedingJoinPoint.METHOD_EXECUTION);
 			assertThat(staticPart.getSignature()).isSameAs(AbstractAspectJAdvice.currentJoinPoint().getSignature());
 			assertThat(staticPart.getSourceLocation()).isEqualTo(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation());
-			}
 		});
 		ITestBean itb = (ITestBean) pf.getProxy();
 		// Any call will do
@@ -169,12 +163,10 @@ public class MethodInvocationProceedingJoinPointTests {
 		final Object raw = new TestBean();
 		ProxyFactory pf = new ProxyFactory(raw);
 		pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
-		pf.addAdvice(new MethodBeforeAdvice() {
-			@Override
-			public void before(Method method, Object[] args, @Nullable Object target) throws Throwable {
+		pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
 			// makeEncSJP, although meant for computing the enclosing join point,
 			// it serves our purpose here
-				JoinPoint.StaticPart aspectJVersionJp = Factory.makeEncSJP(method);
+			StaticPart aspectJVersionJp = Factory.makeEncSJP(method);
 			JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();
 
 			assertThat(jp.getSignature().toLongString()).isEqualTo(aspectJVersionJp.getSignature().toLongString());
@@ -184,7 +176,6 @@ public class MethodInvocationProceedingJoinPointTests {
 			assertThat(jp.toLongString()).isEqualTo(aspectJVersionJp.toLongString());
 			assertThat(jp.toShortString()).isEqualTo(aspectJVersionJp.toShortString());
 			assertThat(jp.toString()).isEqualTo(aspectJVersionJp.toString());
-			}
 		});
 		ITestBean itb = (ITestBean) pf.getProxy();
 		itb.getAge();

spring-aop/src/test/java/org/springframework/aop/aspectj/annotation/AbstractAspectJAdvisorFactoryTests.java

@@ -144,7 +144,7 @@ public abstract class AbstractAspectJAdvisorFactoryTests {
 		aspect2.setOrder(5);
 		advisors.addAll(
 				getFixture().getAdvisors(new SingletonMetadataAwareAspectInstanceFactory(aspect2, "someBean2")));
-		Collections.sort(advisors, new OrderComparator());
+		OrderComparator.sort(advisors);
 
 		TestBean itb = (TestBean) createProxy(target, advisors, TestBean.class);
 		assertThat(itb.getAge()).as("Around advice must NOT apply").isEqualTo(realAge);
@@ -170,7 +170,7 @@ public abstract class AbstractAspectJAdvisorFactoryTests {
 		PerTargetAspectWithOrderAnnotation5 aspect2 = new PerTargetAspectWithOrderAnnotation5();
 		advisors.addAll(
 				getFixture().getAdvisors(new SingletonMetadataAwareAspectInstanceFactory(aspect2, "someBean2")));
-		Collections.sort(advisors, new OrderComparator());
+		OrderComparator.sort(advisors);
 
 		TestBean itb = (TestBean) createProxy(target, advisors, TestBean.class);
 		assertThat(itb.getAge()).as("Around advice must NOT apply").isEqualTo(realAge);

spring-aop/src/test/java/org/springframework/aop/aspectj/autoproxy/AspectJPrecedenceComparatorTests.java

@@ -195,10 +195,7 @@ public class AspectJPrecedenceComparatorTests {
 	}
 
 	private Advisor createSpringAOPAfterAdvice(int order) {
-		AfterReturningAdvice advice = new AfterReturningAdvice() {
-			@Override
-			public void afterReturning(@Nullable Object returnValue, Method method, Object[] args, @Nullable Object target) throws Throwable {
-			}
+		AfterReturningAdvice advice = (returnValue, method, args, target) -> {
 		};
 		DefaultPointcutAdvisor advisor = new DefaultPointcutAdvisor(this.anyOldPointcut, advice);
 		advisor.setOrder(order);

spring-aop/src/test/java/org/springframework/aop/framework/MethodInvocationTests.java

@@ -41,12 +41,7 @@ public class MethodInvocationTests {
 		Object proxy = new Object();
 		final Object returnValue = new Object();
 		List<Object> is = new LinkedList<>();
-		is.add(new MethodInterceptor() {
-			@Override
-			public Object invoke(MethodInvocation invocation) throws Throwable {
-				return returnValue;
-			}
-		});
+		is.add((MethodInterceptor) invocation -> returnValue);
 			ReflectiveMethodInvocation invocation = new ReflectiveMethodInvocation(proxy, null, //?
 		m, null, null, is // list
 	);

spring-aop/src/test/java/org/springframework/aop/framework/NullPrimitiveTests.java

@@ -48,12 +48,7 @@ public class NullPrimitiveTests {
 
 		SimpleFoo target = new SimpleFoo();
 		ProxyFactory factory = new ProxyFactory(target);
-		factory.addAdvice(new MethodInterceptor() {
-			@Override
-			public Object invoke(MethodInvocation invocation) throws Throwable {
-				return null;
-			}
-		});
+		factory.addAdvice((MethodInterceptor) invocation -> null);
 
 		Foo foo = (Foo) factory.getProxy();
 
@@ -73,12 +68,7 @@ public class NullPrimitiveTests {
 
 		Bar target = new Bar();
 		ProxyFactory factory = new ProxyFactory(target);
-		factory.addAdvice(new MethodInterceptor() {
-			@Override
-			public Object invoke(MethodInvocation invocation) throws Throwable {
-				return null;
-			}
-		});
+		factory.addAdvice((MethodInterceptor) invocation -> null);
 
 		Bar bar = (Bar) factory.getProxy();
 

spring-aop/src/test/java/org/springframework/aop/framework/ProxyFactoryTests.java

@@ -170,11 +170,8 @@ public class ProxyFactoryTests {
 
 	@Test
 	public void testAddRepeatedInterface() {
-		TimeStamped tst = new TimeStamped() {
-			@Override
-			public long getTimeStamp() {
+		TimeStamped tst = () -> {
 			throw new UnsupportedOperationException("getTimeStamp");
-			}
 		};
 		ProxyFactory pf = new ProxyFactory(tst);
 		// We've already implicitly added this interface.

spring-aop/src/test/java/org/springframework/aop/support/PointcutsTests.java

@@ -56,12 +56,7 @@ public class PointcutsTests {
 	public static Pointcut allTestBeanMethodsPointcut = new StaticMethodMatcherPointcut() {
 		@Override
 		public ClassFilter getClassFilter() {
-			return new ClassFilter() {
-				@Override
-				public boolean matches(Class<?> clazz) {
-					return clazz.equals(TestBean.class);
-				}
-			};
+			return type -> type.equals(TestBean.class);
 		}
 
 		@Override

spring-webflux/src/main/java/org/springframework/web/reactive/config/ViewResolverRegistry.java

@@ -182,5 +182,4 @@ public class ViewResolverRegistry {
 			getViewResolver();
 		}
 	}
-
 }