[CAMEL-19512] SetHeader not working anymore with InputStreamCache type

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Information Provided
• Affects Version/s: 3.20.3
• Component/s: camel-core

Environment

JDK 11

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Xilai Dai
• Created: 28/Jun/23 02:09
• Updated: 11/Jul/23 07:56
• Resolved: 11/Jul/23 07:56

Description

It seems there is a regression from Camel 3.20.3 which is the SetHeader not working anymore with InputStreamCache type.

Given that a simple route:

		from("timer:cTimer_1" + "?period=" + 1 + "&repeatCount=" + 1 + "&delay=" + 1)
		.setHeader("myheader1").constant("Hi")
		.log(org.apache.camel.LoggingLevel.WARN, "MyRoute.cLog_1", "header myheader1 value is: ${header.myheader1}")
		.setHeader("myheader2").constant(iscache1)
		.log(org.apache.camel.LoggingLevel.WARN, "MyRoute.cLog_2", "header myheader2 value is: ${header.myheader2}")
		.setBody().constant(iscache2)
		.log(org.apache.camel.LoggingLevel.WARN, "MyRoute.cLog_3", "body value is: ${body}");

the value of header.myheader2 is always null from Camel 3.20.3, whereas in Camel 3.20.2 or earlier version, it worked as expected.

Attached a sample project for easily reproduce the issue.

Issue Links

• is related to: CAMEL-19026 camel-jbang - camel.main.backlogTracing=true