// Java 24+: do not do this.
System.setSecurityManager(new SecurityManager()); // UnsupportedOperationException
# Remove these from launchers and CI configs.
-Djava.security.manager
-Djava.security.manager=allow
-Djava.security.policy=app.policy
# [JEP 486](https://openjdk.org/jeps/486) examples
Source: https://openjdk.org/jeps/486
```java
// Java 24+: do not do this.
System.setSecurityManager(new SecurityManager()); // UnsupportedOperationException
```
```bash
# Remove these from launchers and CI configs.
-Djava.security.manager
-Djava.security.manager=allow
-Djava.security.policy=app.policy
```