Could not resolve matching constructor Error while invoking applicationContext.xml

[murali jackson]

Hi All,

I am trying to initiate applicationContext.xml in my class but it is failing with below error.

Error creating bean with name 'exampleTasklet' defined in class path resource [applicationContext.xml]: Could not resolve matching constructor (hint: specify index/type/name arguments for simple parameters to avoid type ambiguities)

But i do have matching constructor in my class so i dont know why its failing. please advise.

public class ExampleTasklet implements Tasklet {
    
    private String UserID;
    private String Password;
    
   public ExampleTasklet (){
	
    }
  
    public ExampleTasklet(String userID, String password) {
	
	this.UserID = userID;
	this.Password = password;
    }
    
    
    
    public static void main (String args[]){
	
	Logger log  = LoggerFactory.getLogger(ExampleTasklet.class);
	log.info("Example Tasklet Executed");
          	
	 ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
	 log.info("checkings");
	ExampleTasklet obj= (ExampleTasklet) context.getBean("exampleTasklet");
	
	log.info("user id is "+obj.UserID);
	
	
    }


}

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/batch"
	xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
 
http://www.springframework.org/schema/beans
 
 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
 
 
http://www.springframework.org/schema/batch
 
 
http://www.springframework.org/schema/batch/spring-batch-2.1.xsd">


<beans:bean id="exampleTasklet"
		class="com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet">
		<beans:constructor-arg name="UserID" value="Murali"/>
		<beans:constructor-arg name="Password" value="Murali"/>
	</beans:bean>


	<beans:bean id="jobRepository"
		class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean">
		<beans:property name="transactionManager" ref="transactionManager" />
	</beans:bean>

	<beans:bean id="jobLauncher"
		class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
		<beans:property name="jobRepository" ref="jobRepository" />
	</beans:bean>

	<beans:bean id="transactionManager"
		class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />


</beans:beans>

SEVERE: Encountered an error executing the step
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exampleTasklet' defined in class path resource [applicationContext.xml]: Could not resolve matching constructor (hint: specify index/type/name arguments for simple parameters to avoid type ambiguities)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:250)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1035)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:939)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet.execute(ExampleTasklet.java:48)
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:386)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
	at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:264)
	at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:76)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:367)
	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:214)
	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:143)
	at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:250)
	at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135)
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61)
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124)
	at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:281)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:120)
	at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:114)
	at com.rmwledger.mailbatch.mailbatch.batch.BatchInitiator.main(BatchInitiator.java:28)

[John Joe]

Try this

<beans:bean id="exampleTasklet"
        class="com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet">
        <property name="UserID" value="Murali"/>
        <property name="Password" value="Murali"/>
    </beans:bean>
 

Then in ExampleTasklet, you just have to declare the property name

private String UserID;
private String Password;

[murali jackson]

Hi John,
Its not working ... It throws a different error which makes sense as i dont have any getter setter property. I want to set value using constructor.

SEVERE: Encountered an error executing the step
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exampleTasklet' defined in class path resource [applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'UserID' of bean class [com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet]: Bean property 'UserID' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1396)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet.execute(ExampleTasklet.java:48)
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:386)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
	at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:264)
	at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:76)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:367)
	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:214)
	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:143)
	at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:250)
	at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135)
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61)
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124)
	at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:281)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:120)
	at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:114)
	at com.rmwledger.mailbatch.mailbatch.batch.BatchInitiator.main(BatchInitiator.java:28)
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'UserID' of bean class [com.rmwledger.mailbatch.mailbatch.tasklet.ExampleTasklet]: Bean property 'UserID' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1064)
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:924)
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:76)
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:58)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
	... 33 more

Aug 15, 2017 5:13:17 PM org.springframework.batch.core.launch.support.SimpleJobLauncher$1 run
INFO: Job: [FlowJob: [name=exampleJob]] completed with the following parameters: [{Date=1502835197425}] and the following status: [FAILED]

[John Joe]

My bad. You still need this code inside your class

 public void setStmtDate(String stmtDate) {
        this.stmtDate = stmtDate;
    }

[John Joe]

Sorry, typo. Please rename the function name and variable name.

[Atul More]

Hi,

Add getter/setter method to the properties.