$ yarn add prettier prettier-plugin-java
$ cat initial.java
package main;

class Main {

  public static void main(String[] args) {
    if (true) // comment
    {
      System.out.println("Oops");
    }
  }
}
$ yarn -s prettier --plugin prettier-plugin-java initial.java | tee first.java
package main;

class Main {

  public static void main(String[] args) {
    if (
      true
    ) { // comment
      System.out.println("Oops");
    }
  }
}
$ yarn -s prettier --plugin prettier-plugin-java first.java | tee second.java
package main;

class Main {

  public static void main(String[] args) {
    if (true) { // comment
      System.out.println("Oops");
    }
  }
}