What is the default port used by Mule application debugger configuration in Anypoint Studio?

The default TCP port for the Mule debugger in Anypoint Studio is 6666. When you start a Mule application in debug mode, the embedded Mule runtime listens on this port for a connection from the Anypoint Studio debugger client. While this port can be changed in the debug configuration settings, 6666 is the pre-configured default value used by the platform.

A. 8082 is not the default debugger port. It is sometimes used as an alternative HTTP listener port if 8081 is taken.

B. 8080 is a common default port for web servers, but it is not the default port for the Mule debugger.

C. 7777 is not the default debugger port. It is the default port for the Mule agent to communicate with Anypoint Runtime Manager.

1. MuleSoft Documentation, "Debug a Mule Application". "By default, the debugger is configured to listen for TCP connections on port 6666 of the localhost."

2. MuleSoft Documentation, "Create a Debug Configuration". Under the "General" tab of the Debug Configurations window, the default value for the "Port" field is shown as 6666.