e104. enabling assertions from the command line.txt

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The command line options -ea and -da allow you to enable and disable assertion in a package subtree or in a class. Here are several examples of the switches. Enable assertions in all non-system classes: 
    java -ea MyApp


Enable assertions in all classes in the unnamed package: 
    java -ea:... MyApp


Enable assertions in all classes in a package subtree: 
    java -ea:com.mycompany... MyApp


Enable assertions in a particular class: 
    java -ea:com.mycompany.MyCompany MyApp


Disable assertions in all classes in a package subtree: 
    java -da:com.mycompany... MyApp


Disable assertions in a particular class: 
    java -da:com.mycompany.MyClass MyApp


Multiple assertion switches on the command line are processed from left to right. Enable assertions in all classes in a package subtree except for one class: 
    java -ea:com.mycompany... -da:com.mycompany.MyClass MyApp