Java: prefers Utility class depending on class instance or static methods?

Question

I have a Java class that does something like this

public class MyObjectUtil {

    private final MyObject myObject;

    public MyObjectUtil (MyObject myObject){            
        this.myObject = myObject;    
    }

    public boolean isSomeInfoPresentValid() {
        return myObject.isSomething();
    }

    public void modifyMyObjectInSomeWay(String blah) {
        myObject.modify(blah);
    }

}

Every time I have to create an instance of the Utility class to interact with a specific instance of MyObject.

myObject is present as an obj session

MyObjectUtil myObjUtil = new MyObjectUtil(myObject);
myObjUtil.modifyMyObjectInSomeWay("blah");
boolean valid = myObjUtil.isSomeInfoPresentValid();

To achieve the same result, I could statically perform the same operations with myObject each time as a method parameter.

public class MyObjectUtil {

    public static boolean isSomeInfoPresentValid(MyObject myObject) {
        return myObject.isSomething();
    }

    public static void modifyMyObjectInSomeWay(MyObject myObject, String blah) {
        myObject.modify(blah);
    }

}

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Answer 1

MyObjectUtil MyObject, MyObject. , , .

Answer 2

, :

Java Utility Class vs. Service

Java Static Utility

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