Note:  This article was authored by Unknown User (singhs8)

Step-by-step guide

To debug a REST service in Eclipse using Maven, use the following steps. 

Steps

Build your service on the command-line and run a remote Java application configuration in Eclipse using the following steps:

1. Build your REST service on the command line using the following command in the main folder:
   
          mvn clean install
   
   
2. Start the service on the command line using the following command:
   
    java -Dspring.profiles.active=local -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 -jar flagging-service-1.0.0-SNAPSHOT.jar
   
           The different parameters are:
   
               spring.profiles.active: The profile you are using to run your service
               -Xdebug: Indicates that the service is to be run in the debug mode
               -Xrunjdwp: Indicates that the connection between the application and the debugging application (Eclipse) will be via the Java Debug Wire Protocol
               transport=dt_socket: Indicates that the application and the debugger will communicate using the socket protocol
               server=y: Indicates that the Java Virtual Machine will act as a server for the debugging and the debugger itself will have to connect to it as a client
               suspend=n: Specifies if the process should be suspended until the debugger attached to it. If this is set to 'y', it will wait until it receives a connection request from the debugger.
               address: The port on which the debugger should connect
   
   
3. In Eclipse, connect to this service using a "Remote Java Application" as a "Debug Configuration". 
   
   
            For the remote configuration, use the following values to set it up:
   
            Host: The URL of the Spring Boot REST service
             Port: The "address" used for the port in step 2 when starting the service. 
   
   
4. Set breakpoints in the application in Eclipse - using the same code base that was used to start the service above. 
5. Send requests to the service using a tool like Postman or Katalon. 
6. The breakpoints will be activated. 

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