The interface Cloneable has no methods defined.
public interface Cloneable {
}
In package org.apache.pdfbox.pdmodel.common;
public class PDMatrix implements Cloneable, COSObjectable
The class, PDMatrix implements the Cloneable interface, yet it does not
implement
The clone() method, if a method were to try and clone the class, there
would be an exception thrown
Because this method is missing.
The actual method Object.clone is a protected method.
There are 2 possible solutions, add this method
public Object clone() {
}
But; since there are no apparently calls to clone this class,
I suggest removing the Cloneable interface from the declaration.
Thanks,
Peter