Couldn't map data retrieved from elastic search document to the variable in @Document?

Hello, I have a UserSearchEntity dto which represents the document for the elastic search. The UserSearchEntity is as follows:

    @Document(indexName = "user_index" , type = "user")

public class UserSearchEntity
{
@Id
private String mosaicId;

private String connectoId;

private String city;

private String mobileNumber;

private String professionType;

private double monthlyIncome;

private String designation;

private String lastUpdatedSource;

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = MosaicConstants.DATE_PATTERN)
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = MosaicConstants.DATE_PATTERN)
private Date birthDate;

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = MosaicConstants.DATE_PATTERN)
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = MosaicConstants.DATE_PATTERN)
private Date creationDate;

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = MosaicConstants.DATE_PATTERN)
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = MosaicConstants.DATE_PATTERN)
private Date lastUpdatedDate;

public String getConnectoId() {
	return connectoId;
}

public void setConnectoId(String connectoId) {
	this.connectoId = connectoId;
}



public String getProfessionType() {
	return professionType;
}

public void setProfessionType(String professionType) {
	this.professionType = professionType;
}

public double getMonthlyIncome() {
	return monthlyIncome;
}


	return creationDate;
}

public void setCreationDate(Date creationDate) {
	this.creationDate = creationDate;
}

public Date getLastUpdatedDate() {
	return lastUpdatedDate;
}

public void setLastUpdatedDate(Date lastUpdatedDate) {
	this.lastUpdatedDate = lastUpdatedDate;
}

public String getLastUpdatedSource() {
	return lastUpdatedSource;
}

public void setLastUpdatedSource(String lastUpdatedSource) {
	this.lastUpdatedSource = lastUpdatedSource;
}

public String getDesignation() {
	return designation;
}

public void setDesignation(String designation) {
	this.designation = designation;
}

}

On retrieving the data from the elasticsearchrepository, I am getting following error:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDetailsQueueConsumer': Unsatisfied dependency expressed through field 'searchService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userSearchService': Unsatisfied dependency expressed through field 'userSearchRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userSearchRepository': Invocation of init method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: Mapper for [birthDate] conflicts with existing mapping in other types:
[mapper [birthDate] has different [format] values]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:849) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at java.lang.IllegalArgumentException: Mapper for [birthDate] conflicts with existing mapping in other types:
[mapper [birthDate] has different [format] values]

And the elastic search document is :

      "birthDate" : "1984-10-17 06:30:00",
      "creationDate" : "2019-05-27 08:55:23",
      "lastUpdatedDate" : "2019-05-27 08:55:23"

Please help with this issue.

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