/*
* Copyright 2002-2015 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
*
* http://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.context.support;
import java.lang.reflect.Field;
import java.util.Map;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.context.ConfigurableApplicationContext;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.springframework.beans.factory.support.BeanDefinitionBuilder.*;
/**
* Unit tests cornering SPR-7502.
*
* @author Chris Beams
*/
public class SerializableBeanFactoryMemoryLeakTests {
/**
* Defensively zero-out static factory count - other tests
* may have misbehaved before us.
*/
@BeforeClass
@AfterClass
public static void zeroOutFactoryCount() throws Exception {
getSerializableFactoryMap().clear();
}
@Test
public void genericContext() throws Exception {
assertFactoryCountThroughoutLifecycle(new GenericApplicationContext());
}
@Test
public void abstractRefreshableContext() throws Exception {
assertFactoryCountThroughoutLifecycle(new ClassPathXmlApplicationContext());
}
@Test
public void genericContextWithMisconfiguredBean() throws Exception {
GenericApplicationContext ctx = new GenericApplicationContext();
registerMisconfiguredBeanDefinition(ctx);
assertFactoryCountThroughoutLifecycle(ctx);
}
@Test
public void abstractRefreshableContextWithMisconfiguredBean() throws Exception {
ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext() {
@Override
protected void customizeBeanFactory(DefaultListableBeanFactory beanFactory) {
super.customizeBeanFactory(beanFactory);
registerMisconfiguredBeanDefinition(beanFactory);
}
};
assertFactoryCountThroughoutLifecycle(ctx);
}
private void assertFactoryCountThroughoutLifecycle(ConfigurableApplicationContext ctx) throws Exception {
assertThat(serializableFactoryCount(), equalTo(0));
try {
ctx.refresh();
assertThat(serializableFactoryCount(), equalTo(1));
ctx.close();
}
catch (BeanCreationException ex) {
// ignore - this is expected on refresh() for failure case tests
}
finally {
assertThat(serializableFactoryCount(), equalTo(0));
}
}
private void registerMisconfiguredBeanDefinition(BeanDefinitionRegistry registry) {
registry.registerBeanDefinition("misconfigured",
rootBeanDefinition(Object.class).addPropertyValue("nonexistent", "bogus")
.getBeanDefinition());
}
private int serializableFactoryCount() throws Exception {
Map<?, ?> map = getSerializableFactoryMap();
return map.size();
}
private static Map<?, ?> getSerializableFactoryMap() throws Exception {
Field field = DefaultListableBeanFactory.class.getDeclaredField("serializableFactories");
field.setAccessible(true);
return (Map<?, ?>) field.get(DefaultListableBeanFactory.class);
}
}