Debug Java program by executing “gradle run”

To debug a gradle project in eclipse follow these steps:

step1: Put these in the build.gradle file:

      

        

        

          

            

              

                

                  

                    

                  
                  

                  

                  

                    

                      

                        
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tasks.withType(JavaExec) {
                    
                    

                      

                        
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    if (System.getProperty('DEBUG', 'false') == 'true') {
                    
                    

                      

                      

                      

                        
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        jvmArgs '-Xdebug', '-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=localhost:9099'
                    
                    

                      

                        
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    }
                    
                    

                      

                        
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}
                    
                  
                
              
            
          
          

          

            

          
        
      
    

step2:

From root of your project run:

      

        

        

          

            

              

                

                  

                    

                    

                      

                    
                  
                  

                  

                  

                    

                      

                      

                      

                        
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gradle -DDEBUG=true run
                    
                  
                
              
            
          
          

          

            

          
        
      
    

Now in console you will see something like this:

      

        

        

          

            

              

                

                  

                    

                    

                      

                    
                  
                  

                  

                  

                    

                      

                      

                      

                        
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Listening for transport dt_socket at address: 9099
                    
                  
                
              
            
          
          

          

            

          
        
      
    

step3:

Now set breakpoints in eclipse in your codes.

step4:

Now from eclipse right click on your project>debug as>debug configuration>Remote java application set these fields:

      

        

        

          

            

              

                

                  

                    

                    

                      

                    
                  
                  

                  

                  

                    

                      

                      

                      

                        
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1. project (this should be set to name of your eclipse project)
                    
                    

                      

                        
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2. host (here its localhost)
                    
                    

                      

                        
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3. port (in this example it will be 9099)
                    
                  
                
              
            
          
          

          

            

          
        
      
    

Click "debug". Now your program will stop whenever it hits a breakpoint in eclipse.

To see details of these steps with an example project see more here:

      

        

        

          

            

              

                

                  

                    

                    

                      

                    
                  
                  

                  

                  

                    

                      

                      

                      

                        
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https://github.com/ayonious/gradle-tutorial/tree/master/remote-debugging1