org.springframework.aop.interceptor.ExposeInvocationInterceptor Java Examples

/**
 * Add special advisors if necessary to work with a proxy chain that contains AspectJ advisors:
 * concretely, {@link ExposeInvocationInterceptor} at the beginning of the list.
 * <p>This will expose the current Spring AOP invocation (necessary for some AspectJ pointcut
 * matching) and make available the current AspectJ JoinPoint. The call will have no effect
 * if there are no AspectJ advisors in the advisor chain.
 * @param advisors the advisors available
 * @return {@code true} if an {@link ExposeInvocationInterceptor} was added to the list,
 * otherwise {@code false}
 */
public static boolean makeAdvisorChainAspectJCapableIfNecessary(List<Advisor> advisors) {
	// Don't add advisors to an empty list; may indicate that proxying is just not required
	if (!advisors.isEmpty()) {
		boolean foundAspectJAdvice = false;
		for (Advisor advisor : advisors) {
			// Be careful not to get the Advice without a guard, as this might eagerly
			// instantiate a non-singleton AspectJ aspect...
			if (isAspectJAdvice(advisor)) {
				foundAspectJAdvice = true;
				break;
			}
		}
		if (foundAspectJAdvice && !advisors.contains(ExposeInvocationInterceptor.ADVISOR)) {
			advisors.add(0, ExposeInvocationInterceptor.ADVISOR);
			return true;
		}
	}
	return false;
}
 

protected Object createProxy(Object target, List<Advisor> advisors, Class<?>... interfaces) {
	ProxyFactory pf = new ProxyFactory(target);
	if (interfaces.length > 1 || interfaces[0].isInterface()) {
		pf.setInterfaces(interfaces);
	}
	else {
		pf.setProxyTargetClass(true);
	}

	// Required everywhere we use AspectJ proxies
	pf.addAdvice(ExposeInvocationInterceptor.INSTANCE);

	for (Object a : advisors) {
		pf.addAdvisor((Advisor) a);
	}

	pf.setExposeProxy(true);
	return pf.getProxy();
}
 

@Override
public Object invoke(MethodInvocation mi) throws Throwable {
	String task = "get invocation on way IN";
	try {
		MethodInvocation current = ExposeInvocationInterceptor.currentInvocation();
		assertEquals(mi.getMethod(), current.getMethod());
		Object retval = mi.proceed();
		task = "get invocation on way OUT";
		assertEquals(current, ExposeInvocationInterceptor.currentInvocation());
		return retval;
	}
	catch (IllegalStateException ex) {
		System.err.println(task + " for " + mi.getMethod());
		ex.printStackTrace();
		throw ex;
	}
}
 

@Test
public void testTargetCanGetInvocation() throws Throwable {
	final InvocationCheckExposedInvocationTestBean expectedTarget = new InvocationCheckExposedInvocationTestBean();

	AdvisedSupport pc = new AdvisedSupport(new Class<?>[] {ITestBean.class, IOther.class});
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	TrapTargetInterceptor tii = new TrapTargetInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			// Assert that target matches BEFORE invocation returns
			assertEquals("Target is correct", expectedTarget, invocation.getThis());
			return super.invoke(invocation);
		}
	};
	pc.addAdvice(tii);
	pc.setTarget(expectedTarget);
	AopProxy aop = createAopProxy(pc);

	ITestBean tb = (ITestBean) aop.getProxy();
	tb.getName();
}
 

@Test
public void testCanGetStaticPartFromJoinPoint() {
	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, Object target) throws Throwable {
			StaticPart staticPart = AbstractAspectJAdvice.currentJoinPoint().getStaticPart();
			assertEquals("Same static part must be returned on subsequent requests", staticPart, AbstractAspectJAdvice.currentJoinPoint().getStaticPart());
			assertEquals(ProceedingJoinPoint.METHOD_EXECUTION, staticPart.getKind());
			assertSame(AbstractAspectJAdvice.currentJoinPoint().getSignature(), staticPart.getSignature());
			assertEquals(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation(), staticPart.getSourceLocation());
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	// Any call will do
	itb.getAge();
}
 

protected Object createProxy(Object target, List<Advisor> advisors, Class<?>... interfaces) {
	ProxyFactory pf = new ProxyFactory(target);
	if (interfaces.length > 1 || interfaces[0].isInterface()) {
		pf.setInterfaces(interfaces);
	}
	else {
		pf.setProxyTargetClass(true);
	}

	// Required everywhere we use AspectJ proxies
	pf.addAdvice(ExposeInvocationInterceptor.INSTANCE);

	for (Object a : advisors) {
		pf.addAdvisor((Advisor) a);
	}

	pf.setExposeProxy(true);
	return pf.getProxy();
}
 

/**
 * Add special advisors if necessary to work with a proxy chain that contains AspectJ advisors.
 * This will expose the current Spring AOP invocation (necessary for some AspectJ pointcut matching)
 * and make available the current AspectJ JoinPoint. The call will have no effect if there are no
 * AspectJ advisors in the advisor chain.
 * @param advisors Advisors available
 * @return {@code true} if any special {@link Advisor Advisors} were added, otherwise {@code false}.
 */
public static boolean makeAdvisorChainAspectJCapableIfNecessary(List<Advisor> advisors) {
	// Don't add advisors to an empty list; may indicate that proxying is just not required
	if (!advisors.isEmpty()) {
		boolean foundAspectJAdvice = false;
		for (Advisor advisor : advisors) {
			// Be careful not to get the Advice without a guard, as
			// this might eagerly instantiate a non-singleton AspectJ aspect
			if (isAspectJAdvice(advisor)) {
				foundAspectJAdvice = true;
			}
		}
		if (foundAspectJAdvice && !advisors.contains(ExposeInvocationInterceptor.ADVISOR)) {
			advisors.add(0, ExposeInvocationInterceptor.ADVISOR);
			return true;
		}
	}
	return false;
}
 

/**
 * Add special advisors if necessary to work with a proxy chain that contains AspectJ advisors.
 * This will expose the current Spring AOP invocation (necessary for some AspectJ pointcut matching)
 * and make available the current AspectJ JoinPoint. The call will have no effect if there are no
 * AspectJ advisors in the advisor chain.
 * @param advisors Advisors available
 * @return {@code true} if any special {@link Advisor Advisors} were added, otherwise {@code false}.
 */
public static boolean makeAdvisorChainAspectJCapableIfNecessary(List<Advisor> advisors) {
	// Don't add advisors to an empty list; may indicate that proxying is just not required
	if (!advisors.isEmpty()) {
		boolean foundAspectJAdvice = false;
		for (Advisor advisor : advisors) {
			// Be careful not to get the Advice without a guard, as
			// this might eagerly instantiate a non-singleton AspectJ aspect
			if (isAspectJAdvice(advisor)) {
				foundAspectJAdvice = true;
			}
		}
		if (foundAspectJAdvice && !advisors.contains(ExposeInvocationInterceptor.ADVISOR)) {
			advisors.add(0, ExposeInvocationInterceptor.ADVISOR);
			return true;
		}
	}
	return false;
}
 

@Override
public Object invoke(MethodInvocation mi) throws Throwable {
	String task = "get invocation on way IN";
	try {
		MethodInvocation current = ExposeInvocationInterceptor.currentInvocation();
		assertEquals(mi.getMethod(), current.getMethod());
		Object retval = mi.proceed();
		task = "get invocation on way OUT";
		assertEquals(current, ExposeInvocationInterceptor.currentInvocation());
		return retval;
	}
	catch (IllegalStateException ex) {
		System.err.println(task + " for " + mi.getMethod());
		ex.printStackTrace();
		throw ex;
	}
}
 

@Test
public void testTargetCanGetInvocation() throws Throwable {
	final InvocationCheckExposedInvocationTestBean expectedTarget = new InvocationCheckExposedInvocationTestBean();

	AdvisedSupport pc = new AdvisedSupport(ITestBean.class, IOther.class);
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	TrapTargetInterceptor tii = new TrapTargetInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			// Assert that target matches BEFORE invocation returns
			assertEquals("Target is correct", expectedTarget, invocation.getThis());
			return super.invoke(invocation);
		}
	};
	pc.addAdvice(tii);
	pc.setTarget(expectedTarget);
	AopProxy aop = createAopProxy(pc);

	ITestBean tb = (ITestBean) aop.getProxy();
	tb.getName();
}
 

@Test
public void testCanGetStaticPartFromJoinPoint() {
	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 {
			StaticPart staticPart = AbstractAspectJAdvice.currentJoinPoint().getStaticPart();
			assertEquals("Same static part must be returned on subsequent requests", staticPart, AbstractAspectJAdvice.currentJoinPoint().getStaticPart());
			assertEquals(ProceedingJoinPoint.METHOD_EXECUTION, staticPart.getKind());
			assertSame(AbstractAspectJAdvice.currentJoinPoint().getSignature(), staticPart.getSignature());
			assertEquals(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation(), staticPart.getSourceLocation());
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	// Any call will do
	itb.getAge();
}
 

protected Object createProxy(Object target, List<Advisor> advisors, Class<?>... interfaces) {
	ProxyFactory pf = new ProxyFactory(target);
	if (interfaces.length > 1 || interfaces[0].isInterface()) {
		pf.setInterfaces(interfaces);
	}
	else {
		pf.setProxyTargetClass(true);
	}

	// Required everywhere we use AspectJ proxies
	pf.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	pf.addAdvisors(advisors);

	pf.setExposeProxy(true);
	return pf.getProxy();
}
 

/**
 * Add special advisors if necessary to work with a proxy chain that contains AspectJ advisors.
 * This will expose the current Spring AOP invocation (necessary for some AspectJ pointcut matching)
 * and make available the current AspectJ JoinPoint. The call will have no effect if there are no
 * AspectJ advisors in the advisor chain.
 * @param advisors the advisors available
 * @return {@code true} if any special {@link Advisor Advisors} were added, otherwise {@code false}
 */
public static boolean makeAdvisorChainAspectJCapableIfNecessary(List<Advisor> advisors) {
	// Don't add advisors to an empty list; may indicate that proxying is just not required
	if (!advisors.isEmpty()) {
		boolean foundAspectJAdvice = false;
		for (Advisor advisor : advisors) {
			// Be careful not to get the Advice without a guard, as
			// this might eagerly instantiate a non-singleton AspectJ aspect
			if (isAspectJAdvice(advisor)) {
				foundAspectJAdvice = true;
			}
		}
		if (foundAspectJAdvice && !advisors.contains(ExposeInvocationInterceptor.ADVISOR)) {
			advisors.add(0, ExposeInvocationInterceptor.ADVISOR);
			return true;
		}
	}
	return false;
}
 

@Override
public Object invoke(MethodInvocation mi) throws Throwable {
	String task = "get invocation on way IN";
	try {
		MethodInvocation current = ExposeInvocationInterceptor.currentInvocation();
		assertEquals(mi.getMethod(), current.getMethod());
		Object retval = mi.proceed();
		task = "get invocation on way OUT";
		assertEquals(current, ExposeInvocationInterceptor.currentInvocation());
		return retval;
	}
	catch (IllegalStateException ex) {
		System.err.println(task + " for " + mi.getMethod());
		ex.printStackTrace();
		throw ex;
	}
}
 

@Test
public void testTargetCanGetInvocation() throws Throwable {
	final InvocationCheckExposedInvocationTestBean expectedTarget = new InvocationCheckExposedInvocationTestBean();

	AdvisedSupport pc = new AdvisedSupport(ITestBean.class, IOther.class);
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	TrapTargetInterceptor tii = new TrapTargetInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			// Assert that target matches BEFORE invocation returns
			assertEquals("Target is correct", expectedTarget, invocation.getThis());
			return super.invoke(invocation);
		}
	};
	pc.addAdvice(tii);
	pc.setTarget(expectedTarget);
	AopProxy aop = createAopProxy(pc);

	ITestBean tb = (ITestBean) aop.getProxy();
	tb.getName();
}
 

@Test
public void testCanGetStaticPartFromJoinPoint() {
	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 {
			StaticPart staticPart = AbstractAspectJAdvice.currentJoinPoint().getStaticPart();
			assertEquals("Same static part must be returned on subsequent requests", staticPart, AbstractAspectJAdvice.currentJoinPoint().getStaticPart());
			assertEquals(ProceedingJoinPoint.METHOD_EXECUTION, staticPart.getKind());
			assertSame(AbstractAspectJAdvice.currentJoinPoint().getSignature(), staticPart.getSignature());
			assertEquals(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation(), staticPart.getSourceLocation());
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	// Any call will do
	itb.getAge();
}
 

protected Object createProxy(Object target, List<Advisor> advisors, Class<?>... interfaces) {
	ProxyFactory pf = new ProxyFactory(target);
	if (interfaces.length > 1 || interfaces[0].isInterface()) {
		pf.setInterfaces(interfaces);
	}
	else {
		pf.setProxyTargetClass(true);
	}

	// Required everywhere we use AspectJ proxies
	pf.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	pf.addAdvisors(advisors);

	pf.setExposeProxy(true);
	return pf.getProxy();
}
 

/**
 * Test that when we serialize and deserialize various canonical instances
 * of AOP classes, they return the same instance, not a new instance
 * that's subverted the singleton construction limitation.
 */
@Test
public void testCanonicalFrameworkClassesStillCanonicalOnDeserialization() throws Exception {
	assertSame(MethodMatcher.TRUE, SerializationTestUtils.serializeAndDeserialize(MethodMatcher.TRUE));
	assertSame(ClassFilter.TRUE, SerializationTestUtils.serializeAndDeserialize(ClassFilter.TRUE));
	assertSame(Pointcut.TRUE, SerializationTestUtils.serializeAndDeserialize(Pointcut.TRUE));
	assertSame(EmptyTargetSource.INSTANCE, SerializationTestUtils.serializeAndDeserialize(EmptyTargetSource.INSTANCE));
	assertSame(Pointcuts.SETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.SETTERS));
	assertSame(Pointcuts.GETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.GETTERS));
	assertSame(ExposeInvocationInterceptor.INSTANCE,
			SerializationTestUtils.serializeAndDeserialize(ExposeInvocationInterceptor.INSTANCE));
}
 

/**
 * Throw an exception if there is an Invocation.
 */
private void assertNoInvocationContext() {
	try {
		ExposeInvocationInterceptor.currentInvocation();
		fail("Expected no invocation context");
	}
	catch (IllegalStateException ex) {
		// ok
	}
}
 

@Test
public void toShortAndLongStringFormedCorrectly() throws Exception {
	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 {
			// makeEncSJP, although meant for computing the enclosing join point,
			// it serves our purpose here
			JoinPoint.StaticPart aspectJVersionJp = Factory.makeEncSJP(method);
			JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();

			assertEquals(aspectJVersionJp.getSignature().toLongString(), jp.getSignature().toLongString());
			assertEquals(aspectJVersionJp.getSignature().toShortString(), jp.getSignature().toShortString());
			assertEquals(aspectJVersionJp.getSignature().toString(), jp.getSignature().toString());

			assertEquals(aspectJVersionJp.toLongString(), jp.toLongString());
			assertEquals(aspectJVersionJp.toShortString(), jp.toShortString());
			assertEquals(aspectJVersionJp.toString(), jp.toString());
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	itb.getAge();
	itb.setName("foo");
	itb.getDoctor();
	itb.getStringArray();
	itb.getSpouse();
	itb.setSpouse(new TestBean());
	try {
		itb.unreliableFileOperation();
	}
	catch (IOException ex) {
		// we don't really care...
	}
}
 

/**
 * Lazily instantiate joinpoint for the current invocation.
 * Requires MethodInvocation to be bound with ExposeInvocationInterceptor.
 * <p>Do not use if access is available to the current ReflectiveMethodInvocation
 * (in an around advice).
 * @return current AspectJ joinpoint, or through an exception if we're not in a
 * Spring AOP invocation.
 */
public static JoinPoint currentJoinPoint() {
	MethodInvocation mi = ExposeInvocationInterceptor.currentInvocation();
	if (!(mi instanceof ProxyMethodInvocation)) {
		throw new IllegalStateException("MethodInvocation is not a Spring ProxyMethodInvocation: " + mi);
	}
	ProxyMethodInvocation pmi = (ProxyMethodInvocation) mi;
	JoinPoint jp = (JoinPoint) pmi.getUserAttribute(JOIN_POINT_KEY);
	if (jp == null) {
		jp = new MethodInvocationProceedingJoinPoint(pmi);
		pmi.setUserAttribute(JOIN_POINT_KEY, jp);
	}
	return jp;
}
 

/**
 * Get the current join point match at the join point we are being dispatched on.
 */
protected JoinPointMatch getJoinPointMatch() {
	MethodInvocation mi = ExposeInvocationInterceptor.currentInvocation();
	if (!(mi instanceof ProxyMethodInvocation)) {
		throw new IllegalStateException("MethodInvocation is not a Spring ProxyMethodInvocation: " + mi);
	}
	return getJoinPointMatch((ProxyMethodInvocation) mi);
}
 

/**
 * Lazily instantiate joinpoint for the current invocation.
 * Requires MethodInvocation to be bound with ExposeInvocationInterceptor.
 * <p>Do not use if access is available to the current ReflectiveMethodInvocation
 * (in an around advice).
 * @return current AspectJ joinpoint, or through an exception if we're not in a
 * Spring AOP invocation.
 */
public static JoinPoint currentJoinPoint() {
	MethodInvocation mi = ExposeInvocationInterceptor.currentInvocation();
	if (!(mi instanceof ProxyMethodInvocation)) {
		throw new IllegalStateException("MethodInvocation is not a Spring ProxyMethodInvocation: " + mi);
	}
	ProxyMethodInvocation pmi = (ProxyMethodInvocation) mi;
	JoinPoint jp = (JoinPoint) pmi.getUserAttribute(JOIN_POINT_KEY);
	if (jp == null) {
		jp = new MethodInvocationProceedingJoinPoint(pmi);
		pmi.setUserAttribute(JOIN_POINT_KEY, jp);
	}
	return jp;
}
 

/**
 * Get the current join point match at the join point we are being dispatched on.
 */
protected JoinPointMatch getJoinPointMatch() {
	MethodInvocation mi = ExposeInvocationInterceptor.currentInvocation();
	if (!(mi instanceof ProxyMethodInvocation)) {
		throw new IllegalStateException("MethodInvocation is not a Spring ProxyMethodInvocation: " + mi);
	}
	return getJoinPointMatch((ProxyMethodInvocation) mi);
}
 

@Test
public void toShortAndLongStringFormedCorrectly() throws Exception {
	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, Object target) throws Throwable {
			// makeEncSJP, although meant for computing the enclosing join point,
			// it serves our purpose here
			JoinPoint.StaticPart aspectJVersionJp = Factory.makeEncSJP(method);
			JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();

			assertEquals(aspectJVersionJp.getSignature().toLongString(), jp.getSignature().toLongString());
			assertEquals(aspectJVersionJp.getSignature().toShortString(), jp.getSignature().toShortString());
			assertEquals(aspectJVersionJp.getSignature().toString(), jp.getSignature().toString());

			assertEquals(aspectJVersionJp.toLongString(), jp.toLongString());
			assertEquals(aspectJVersionJp.toShortString(), jp.toShortString());
			assertEquals(aspectJVersionJp.toString(), jp.toString());
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	itb.getAge();
	itb.setName("foo");
	itb.getDoctor();
	itb.getStringArray();
	itb.getSpouse();
	itb.setSpouse(new TestBean());
	try {
		itb.unreliableFileOperation();
	} catch (IOException ex) {
		// we don't realy care...
	}
}
 

/**
 * Test that when we serialize and deserialize various canonical instances
 * of AOP classes, they return the same instance, not a new instance
 * that's subverted the singleton construction limitation.
 */
@Test
public void testCanonicalFrameworkClassesStillCanonicalOnDeserialization() throws Exception {
	assertSame(MethodMatcher.TRUE, SerializationTestUtils.serializeAndDeserialize(MethodMatcher.TRUE));
	assertSame(ClassFilter.TRUE, SerializationTestUtils.serializeAndDeserialize(ClassFilter.TRUE));
	assertSame(Pointcut.TRUE, SerializationTestUtils.serializeAndDeserialize(Pointcut.TRUE));
	assertSame(EmptyTargetSource.INSTANCE, SerializationTestUtils.serializeAndDeserialize(EmptyTargetSource.INSTANCE));
	assertSame(Pointcuts.SETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.SETTERS));
	assertSame(Pointcuts.GETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.GETTERS));
	assertSame(ExposeInvocationInterceptor.INSTANCE,
			SerializationTestUtils.serializeAndDeserialize(ExposeInvocationInterceptor.INSTANCE));
}
 

/**
 * @param context if true, want context
 */
private void testContext(final boolean context) throws Throwable {
	final String s = "foo";
	// Test return value
	MethodInterceptor mi = new MethodInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			if (!context) {
				assertNoInvocationContext();
			} else {
				assertNotNull("have context", ExposeInvocationInterceptor.currentInvocation());
			}
			return s;
		}
	};
	AdvisedSupport pc = new AdvisedSupport(new Class<?>[] {ITestBean.class});
	if (context) {
		pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	}
	pc.addAdvice(mi);
	// Keep CGLIB happy
	if (requiresTarget()) {
		pc.setTarget(new TestBean());
	}
	AopProxy aop = createAopProxy(pc);

	assertNoInvocationContext();
	ITestBean tb = (ITestBean) aop.getProxy();
	assertNoInvocationContext();
	assertSame("correct return value", s, tb.getName());
}
 

@Test
public void testDeclaredException() throws Throwable {
	final Exception expectedException = new Exception();
	// Test return value
	MethodInterceptor mi = new MethodInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			throw expectedException;
		}
	};
	AdvisedSupport pc = new AdvisedSupport(new Class<?>[] {ITestBean.class});
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	pc.addAdvice(mi);

	// We don't care about the object
	mockTargetSource.setTarget(new Object());
	pc.setTargetSource(mockTargetSource);
	AopProxy aop = createAopProxy(pc);

	try {
		ITestBean tb = (ITestBean) aop.getProxy();
		// Note: exception param below isn't used
		tb.exceptional(expectedException);
		fail("Should have thrown exception raised by interceptor");
	}
	catch (Exception thrown) {
		assertEquals("exception matches", expectedException, thrown);
	}
}
 

/**
 * An interceptor throws a checked exception not on the method signature.
 * For efficiency, we don't bother unifying java.lang.reflect and
 * org.springframework.cglib UndeclaredThrowableException
 */
@Test
public void testUndeclaredCheckedException() throws Throwable {
	final Exception unexpectedException = new Exception();
	// Test return value
	MethodInterceptor mi = new MethodInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			throw unexpectedException;
		}
	};
	AdvisedSupport pc = new AdvisedSupport(new Class<?>[] {ITestBean.class});
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	pc.addAdvice(mi);

	// We don't care about the object
	pc.setTarget(new TestBean());
	AopProxy aop = createAopProxy(pc);
	ITestBean tb = (ITestBean) aop.getProxy();

	try {
		// Note: exception param below isn't used
		tb.getAge();
		fail("Should have wrapped exception raised by interceptor");
	}
	catch (UndeclaredThrowableException thrown) {
		assertEquals("exception matches", unexpectedException, thrown.getUndeclaredThrowable());
	}
	catch (Exception ex) {
		ex.printStackTrace();
		fail("Didn't expect exception: " + ex);
	}
}
 

@Test
public void testUndeclaredUnheckedException() throws Throwable {
	final RuntimeException unexpectedException = new RuntimeException();
	// Test return value
	MethodInterceptor mi = new MethodInterceptor() {
		@Override
		public Object invoke(MethodInvocation invocation) throws Throwable {
			throw unexpectedException;
		}
	};
	AdvisedSupport pc = new AdvisedSupport(new Class<?>[] {ITestBean.class});
	pc.addAdvice(ExposeInvocationInterceptor.INSTANCE);
	pc.addAdvice(mi);

	// We don't care about the object
	pc.setTarget(new TestBean());
	AopProxy aop = createAopProxy(pc);
	ITestBean tb = (ITestBean) aop.getProxy();

	try {
		// Note: exception param below isn't used
		tb.getAge();
		fail("Should have wrapped exception raised by interceptor");
	}
	catch (RuntimeException thrown) {
		assertEquals("exception matches", unexpectedException, thrown);
	}
}