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Chapter 12. Debugging your Quarkus project
When Quarkus starts in development mode, debugging is enabled by default. The debugger listens on port 5005 without suspending the JVM.
Prerequisites
- You have a Quarkus Maven project.
Procedure
Use one of the following methods to control debugging:
Control the debugger through system properties
Change one of the following values of the
debugsystem property wherePORTis the port that the debugger is listening on:-
false: The JVM starts with debug mode disabled. -
true: The JVM starts in debug mode and is listening on port5005. -
client: The JVM starts in client mode and tries to connect tolocalhost:5005. -
PORT: The JVM starts in debug mode and is listening onPORT.
-
Change the value of the
suspendsystem property. This property is used when Quarkus starts in debug mode.-
yortrue: The debug mode JVM launch suspends. -
norfalse: The debug mode JVM starts without suspending.
-
Control the debugger from the command line
To start your Quarkus application in debug mode with JVM, enter the following command:
./mvnw compile quarkus:dev -Ddebug-
Attach a debugger to
localhost:5005.