SetSystemProperty

```
@Retention(RUNTIME)
@Target({METHOD,TYPE})
@Inherited
@Repeatable(SetSystemProperties.class)
@ExtendWith(SystemPropertyExtension.class)
public @interface SetSystemProperty
```
@SetSystemProperty is a JUnit Jupiter extension to set the value of a system property for a test execution.
The key and value of the system property to be set must be specified via key() and value(). After the annotated method has been executed, the original value or the value of the higher-level container is restored.

SetSystemProperty can be used on the method and on the class level. It is repeatable and inherited from higher-level containers. If a class is annotated, the configured property will be set before every test inside that class. Any method-level configurations will override the class-level configurations.

During parallel test execution, all tests annotated with ClearSystemProperty, SetSystemProperty, ReadsSystemProperty, and WritesSystemProperty are scheduled in a way that guarantees correctness under mutation of shared global state.

For more details and examples, see the documentation on @ClearSystemProperty and @SetSystemProperty.

Since:

0.5

Required Element Summary

Required Elements
Modifier and Type	Required Element	Description
`java.lang.String`	`key`	The key of the system property to be set.
`java.lang.String`	`value`	The value of the system property to be set.

- Element Detail
  - key
```
java.lang.String key
```
    The key of the system property to be set.
- - value
```
java.lang.String value
```
    The value of the system property to be set.