[CAMEL-15307] camel-spring - Graceful shutdown is not working anymore

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0, 3.4.0, 3.4.1
• Fix Version/s: 3.4.3, 3.5.0
• Component/s: camel-spring

Environment

Windows 10

openJDK 1.8, Oracle JDK 1.8

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Oliver Holzmann
• Created: 17/Jul/20 07:08
• Updated: 28/Jul/20 10:41
• Resolved: 28/Jul/20 10:41

Description

We are using org.apache.camel.spring.Main to run our Camel applications within a spring context. After updating from Camel 2.24.3 to 3.4.1 the gracefull shutdown is not working anymore.

When calling Strg+C in a windows shell (or stopping a service wrapper) the camel context is not stopped/closed and the jvm simply stops after logging this:

2020-07-17 08:49:17,559 [ad #7 - CamelHangupInterceptor] INFO  DefaultMainShutdownStrategy    - Received hang up - stopping the main instance.
2020-07-17 08:49:17,559 [pache.camel.spring.Main.main()] DEBUG MainSupport                    - Stopping Spring ApplicationContext: org.springframework.context.support.ClassPathXmlApplicationContext@15512f1a

In Camel 2.25.1 gracefull shutdown also works fine.

Also using Camel version 3.4.0 or 3.3.0 didn't solve the issue.

I debugged the behaviour and found that, when keeping the CamelHangupInterceptor thread from org.apache.camel.main.DefaultMainShutdownStrategy running after the shutdown call, the Camel context is stopped correctly. But when the CamelHangupInterceptor thread ends also the JVM is stopping.

Issue Links

• relates to: CAMEL-15343 camel-main - Graceful shutdown from ctrl + c SIGTERM is not working correctly