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Spring Integration : Remove Jms and Http Headers from Message

I have a integration flow like this

Subscriber & Publisher

Broker->queue1->Transform->HTTP CALL->HTTP Response->JMS Message->Broker->queue2


This my integration flow DSL

@Bean
public IntegrationFlow orchestrationFlow() {
return IntegrationFlows.from(Jms.messageDrivenChannelAdapter(connectionFactory).destination("MAILBOX"))
//destination("amq.outbound1"))
.<String, String>transform(s -> {
return s.toLowerCase();
}).log()
.transform(new PojoTransformer())
//.headerFilter("^(jms?|JMS)://.*$", true)
.log()
// HTTP part goes here
.<String, HttpEntity<String>>transform(HttpEntity::new).handle(

Http.outboundGateway("http://localhost:8080/uppsercase").httpMethod(HttpMethod.POST)
.extractPayload(true).expectedResponseType(String.class))
.log()
.headerFilter("(.*?)", true)
.log()
//.<HttpEntity<String>,String>transform(HttpEntity<String>::getBody)
// and here HTTP part ends
.handle(Jms.outboundAdapter(connectionFactory).destination("MAILBOXX")).get();
}

public static class PojoTransformer {

@Transformer
public String transform(@Payload String email, @Headers MessageHeaders headers) {
return email;
}

}


I want remove Jms Headers from the message before making http call
Also want to remove the HTTP headers before sending it to JMS

I tried to different approaches using @Transformer and headerFilter

@Transformer

headerFilter

But nothing work,
Since clearing of headers is not happening , unwanted headers are send to JMS and HTTP requests

I pasting the logs here

GenericMessage [payload=something, headers={JMS_IBM_Character_Set=UTF-8, JMS_IBM_MsgType=8, jms_destination=queue:///MAILBOX, JMSXUserID=admin , JMS_IBM_Encoding=273, priority=4, jms_timestamp=1532706892455, JMSXAppID=SpringIntegrationDemoApplica, JMS_IBM_PutApplType=28, JMS_IBM_Format=MQSTR , jms_redelivered=false, JMS_IBM_PutDate=20180727, JMSXDeliveryCount=1, JMS_IBM_PutTime=15545246, id=5f5fe393-42e3-9ab9-3170-739bf7e4f72b, jms_messageId=ID:414d5120514d31202020202020202020872a5b5b02781521, timestamp=1532706892732}]
GenericMessage [payload=something, headers={JMS_IBM_Character_Set=UTF-8, JMS_IBM_MsgType=8, jms_destination=queue:///MAILBOX, JMSXUserID=admin , JMS_IBM_Encoding=273, priority=4, jms_timestamp=1532706892455, JMSXAppID=SpringIntegrationDemoApplica, JMS_IBM_PutApplType=28, JMS_IBM_Format=MQSTR , jms_redelivered=false, JMS_IBM_PutDate=20180727, JMSXDeliveryCount=1, JMS_IBM_PutTime=15545246, id=d81f301b-7033-65be-9dd2-6bda3a200b3a, jms_messageId=ID:414d5120514d31202020202020202020872a5b5b02781521, timestamp=1532706892737}]
GenericMessage [payload=SOMETHING IS CONVERTED TO UPPERCASE, headers={JMS_IBM_Character_Set=UTF-8, JMS_IBM_MsgType=8, jms_destination=queue:///MAILBOX, JMSXUserID=admin , JMS_IBM_Encoding=273, priority=4, jms_timestamp=1532706892455, http_statusCode=201, Date=1532706892000, JMSXAppID=SpringIntegrationDemoApplica, JMS_IBM_PutApplType=28, JMS_IBM_Format=MQSTR , jms_redelivered=false, JMS_IBM_PutDate=20180727, JMSXDeliveryCount=1, JMS_IBM_PutTime=15545246, id=e464d287-b32b-0bdc-e008-c3d5bf70e45a, Content-Length=35, contentType=text/plain;charset=UTF-8, jms_messageId=ID:414d5120514d31202020202020202020872a5b5b02781521, timestamp=1532706892783}]
GenericMessage [payload=SOMETHING IS CONVERTED TO UPPERCASE, headers={JMS_IBM_Character_Set=UTF-8, JMS_IBM_MsgType=8, jms_destination=queue:///MAILBOX, JMSXUserID=admin , JMS_IBM_Encoding=273, priority=4, jms_timestamp=1532706892455, http_statusCode=201, Date=1532706892000, JMSXAppID=SpringIntegrationDemoApplica, JMS_IBM_PutApplType=28, JMS_IBM_Format=MQSTR , jms_redelivered=false, JMS_IBM_PutDate=20180727, JMSXDeliveryCount=1, JMS_IBM_PutTime=15545246, id=e464d287-b32b-0bdc-e008-c3d5bf70e45a, Content-Length=35, contentType=text/plain;charset=UTF-8, jms_messageId=ID:414d5120514d31202020202020202020872a5b5b02781521, timestamp=1532706892783}]
: failed to map Message header 'Content-Length' to JMS property


could somebody tell me why my transformations is not working properly

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