/var/tmp $ javac PrintStreamTest.java

/var/tmp $ cat /google_checks.xml
cat: /google_checks.xml: No such file or directory

/var/tmp $ cat PrintStreamTest.java
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

class PrintStreamTest {
  void println__String_(@Test String x) {
    class Local {
      void println__String_(String x) {
        System.out.println(x);
      }
    }

    new Local().println__String_(x);
  }

  @Target(ElementType.PARAMETER)
  @Retention(RetentionPolicy.RUNTIME)
  @Documented
  @interface Test {}
}

/var/tmp $ java $RUN_LOCALE -jar checkstyle-10.18.1-all.jar -c /google_checks.xml PrintStreamTest.java
Starting audit...
Audit done.

/var/tmp $ javac -cp apiguardian-api-1.1.2.jar:junit-jupiter-api-5.11.0.jar Test.java

/var/tmp $ cat /google_checks.xml
cat: /google_checks.xml: No such file or directory

/var/tmp $ cat Test.java
class Test {
  @org.junit.jupiter.api.Test
  void underscoreSeparated_lowerCamelCase_components() {}
}

/var/tmp $ java $RUN_LOCALE -jar checkstyle-10.18.1-all.jar -c /google_checks.xml Test.java
Starting audit...
[WARN] /var/tmp/Test.java:3:8: Method name 'underscoreSeparated_lowerCamelCase_components' must match pattern '^[a-z][a-z0-9][a-zA-Z0-9]*$'. [MethodName]
Audit done.