I have following bean declaration xml.
<bean id="taskExecutor" class="com.XXX.xxx.management.common.executor.TaskExecutorImpl"
destroy-method="shutdown">
<constructor-arg name="threadPoolSize" value="5"/>
<constructor-arg name="executionQueueCapacity" value="1000"/>
<constructor-arg name="typeLimit" value="5"/>
</bean>
and Following is the code of TaskExecutorImpl.
import java.util.AbstractQueue;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.TreeSet;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.FutureTask;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
import javax.annotation.PostConstruct;
public class TaskExecutorImpl implements TaskExecutor {
private final int threadPoolSize;
private final int executionQueueCapacity;
private final int typeLimit;
private BlockingPriorityTaskQueue executionQueue;
private ExecutorService threadPool;
private ConcurrentHashMap<String, AtomicInteger> executionByTypeMap = new ConcurrentHashMap<>();
/**
* Main lock guarding all access
*/
final ReentrantLock mainLock;
/**
* Condition for waiting takes
*/
private final Condition notEmpty;
/**
* Condition for waiting puts
*/
private final Condition notFull;
public TaskExecutorImpl(int threadPoolSize, int executionQueueCapacity, int typeLimit) {
this.threadPoolSize = threadPoolSize;
this.executionQueueCapacity = executionQueueCapacity;
this.typeLimit = typeLimit;
mainLock = new ReentrantLock();
notEmpty = mainLock.newCondition();
notFull = mainLock.newCondition();
}
@PostConstruct
@SuppressWarnings("unchecked")
public void initialize() {
executionQueue = new BlockingPriorityTaskQueue(executionQueueCapacity);
threadPool = new ThreadPoolExecutor(threadPoolSize, threadPoolSize, 0L, TimeUnit.MILLISECONDS,
(BlockingQueue) executionQueue);
// create core threads, required for type control
for (int i = 0; i < threadPoolSize; i++) {
threadPool.execute(new Runnable() {
@Override
public void run() {
// nothing here
}
});
}
}
and other Methdods implementation so on
When I start the context I get following error
2017-06-01 06:50:22.625 GMT ERROR localhost-startStop-1 ContextLoader:331 - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalAsyncAnnotationProcessor': Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.xxx.xxx.management.common.executor.TaskExecutorImpl' to required type 'java.util.concurrent.Executor' for property 'executor'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.xxx.xxx.management.common.executor.TaskExecutorImpl] to required type [java.util.concurrent.Executor] for property 'executor': no matching editors or conversion strategy found at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:743) at org.springvmframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:410) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4853) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:753) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.messages.nsx.management.common.executor.TaskExecutorImpl' to required type 'java.util.concurrent.Executor' for property 'executor'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.xxx.xxx.management.common.executor.TaskExecutorImpl] to required type [java.util.concurrent.Executor] for property 'executor': no matching editors or conversion strategy found at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:464) at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:495) at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:489) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1465) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1424) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1160) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) ... 23 more Caused by: java.lang.IllegalStateException: Cannot convert value of type [com.xxx.xxx.management.common.executor.TaskExecutorImpl] to required type [java.util.concurrent.Executor] for property 'executor': no matching editors or conversion strategy found at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:267) at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:449) ... 29 more
