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Before re-compiling the project, it's a good practice to clean it (
mvn clean). This removes thetargetdirectory, which contains all the output from previous compilations. -
To compile the project and also package it (into a .jar file), you can use the package goal (
mvn package) instead of just compiling (mvn compile). This command will compile the code and also package it according to the specifications in thepom.xmlfile.